Ok, I have only had my new Rogers Magic since last Thursday. I have unlocked it to AT&T and flashed it with the HoFo Community Rom. I am converting from a Blackberry. Email is probably the most important thing to me. First of all, Android OS is absolutely the best thing I have run across. It has everything I wanted and used from Blackberry but in better delivery. It also bridges the gap to the iPhone experience and gives me all the feature I would want and use from that type OS. I hope to make this my new phone and OS indefinitely. There is only one main issue, battery life.
I am a power user. I am on my phone a good bit when I travel but in the office, it can stay on the charger if necessary. I have a couple of apps installed that may be using too much battery but if I can't use them regularly, the phone's advantages no longer become useful. Here is a list:
Touchdown-On (syncs every 15 mins)
Gmail Sync-On (push on)
Youmail-On (syncs every hour)
Twidroid-On (syncs every hour)
Bluetooth-Off
Wifi-Off
GPS-On (read where this does not effect things unless an apps is using it)
3g-On (have switched to 2g and do not gain appreciable life so far)
I also have something showing up in taskiller I do not know what it is. It shows up as com.google.android.apps.maps:FriendService. I do not know if this is killing the battery.
I am also using 4 widgets:
Battery Widget by mippin
Touchdown Calendar
Google Search
Portrait/Picture Frame
I do have 4 toggle widgets for Bluetooth, Wifi, Brightness and Ringer. I did not think these effect battery life but they do show up in taskiller. Screen brightness is set to 20%.
As an example, today I took the phone off the charger from an overnight charge. It was showing 100% battery life. I did this at 8:12 am. I sat it on my desk and did not touch it. I got 3 emails though Touchdown and 3 emails through Gmail. I opened the phone to read and delete. That was all I used the phone for. At approximately 9:45 (1.5 hours later) my charge was down to 76%. Another example. Last night I took the phone off the charger at 100% to make a phone call. I talked for 1 hour and 10 minutes. When I got off the call, I had 54% battery remaining.
I tried to be as detailed as possible here. If there are questions let me know. I hope I do not have unrealistic expectations but overall I am thinking there may be something wrong. I am up for any suggestions and I am going to give this phone all the time I can. I have read through every battery life thread on this forum. I plan on conditioning the battery this week and have read to top it off as often as possible. Sorry for the length but I am actually hoping there is an issue and I can fix it. I still have my Blackberry and don't want to go back but I just can't be looking for a charger in every airport or meeting room I am in.
I Cant tell you what the process is called as I only use gmail, but you can set gmail up to check your other emails & Then use only the native email push to the phone rather then the extra email apps syncing once an hour.. I Can tell you that I too am a power user, but in a different way.. I only have 1 email address, but I use the met on my phone as well as gTalk & sms constantly & I have absolutely no batter life issues.. I am also running nearly as many widgets (you have the rounded labs ones to turn everything on & off?).
With heavy use my battery will end up in the 50% range after a full day away from a charger.
bastage said:
I Cant tell you what the process is called as I only use gmail, but you can set gmail up to check your other emails & Then use only the native email push to the phone rather then the extra email apps syncing once an hour.. I Can tell you that I too am a power user, but in a different way.. I only have 1 email address, but I use the met on my phone as well as gTalk & sms constantly & I have absolutely no batter life issues.. I am also running nearly as many widgets (you have the rounded labs ones to turn everything on & off?).
With heavy use my battery will end up in the 50% range after a full day away from a charger.
Click to expand...
Click to collapse
Thanks for the reply.
I can't use Gmail to get my corporate email so that is out. I do have the rounded labs widgets and I am keeping everything off at the current moment. I am trying the top off method to condition the battery. I read about that on here. Maybe things will get better soon.
It might just be a fluke, but ever since I started killing my browser (via taskiller or advanced task manager) when not in use, my battery is lasting much longer now. Also, its not uncommon for it to clear up to 30mb ram that was in use from the browser.
I'm also on the hofo community rom (v 1.10) on a rogers magic and come from a blackberrry myself and have a similar setup (gmail push, touchdown synch 15 minute and push turned on, other email x2 on 15 minute sync, wifi and bluetooth off, but i leave 3g on most of the time).
Cheers.
Did you drain your battery fully in the few days you've got your phone? You're not supposed to drain the battery very often, that's bad for these batteries, but it is recommmended to do it when you buy your phone and every once in a while afterwards. Just let it drain until the phone switches off (do NOT turn it on again trying to drain the battery even more!), then put it on a charger and charge it for a few hours (you can turn it back on once you put it on the charger). Keep it on the charger even after it says it's fully charged. If you don't do this every once in a while (say, once a month or two), the battery meter won't be accurate and will tell you you've got less battery left than you really do.
If this doesn't help, I'd suggest investigating the widgets and/or background applications. Some of the widgets may be preventing letting the phone enter sleep mode, therefore causing unnecessary battery drain (ironicaly, even the battery widget can do this), or may be checking something a bit too often. I'm running my Magic with stock ROM, but pretty much the same setup as you (wifi on, 2G only, Gmail/Contacts/Calendar autosync on, mail and Twidroid set to 30mins, but slightly different widgets and I do close the apps in the background when I don't need them using TaskPanel), and it takes me almost 24 hours of light use of the phone (reading a few mails/SMS/twitts, replying to them, installing updates from Market etc.)to get to something like 70%.
Thanks for the replies. Actually I did drain my battery a few times. Once on purpose and 1 other by accidentally leaving it off the charger over night. I am beginning to see a bit better life from the battery now that I am getting it conditioned.
Also, I did run some tests today while the phone was on my desk. I installed Watts to monitor battery usage. I used Taskiller to kill everything and added the programs that I thought might be using battery back in one by one every hour. I noted the biggest drops. The worst offender was actually Youmail. I had just been notified of a beta version and updated a few days earlier. Turns out it had a pretty bad bug in it where it used 100% CPU resources trying to connect. I emailed Youmail about it and they sent me another download. It seems to be doing better now but I will monitor it closely. Next worst was Background Data. Turning this off helps a bunch. WeatherBug, Twidroid and Touchdown all seem to effect battery life very little depending on how often you have them set up to update. I did all this with 3g on so I know I can save more with 2g. With everything on except background data and just updated Gmail myself, I am seeing = to or less than 5% battery drain per hour. When I really crank things up by browsing or downloading, I see a bigger drop. Phone call also cause a bigger drop.
Overall, I think I am getting a handle on things. I still am a bit upset by overall battery consumption. I just hate having a phone with all this function and flexibility being severely limited by the battery.
I also have a battery issue. Overnight the phone drains about 70% of the battery. I tried the battery on a friends HTC Magic 32A, and it lasts about 2 days.
I no widgets and using TaskKiller and Advanced Task Killer Free to monitor the running applications, but up to now, I haven't been lucky, and it keeps draining the battery.
The ROM I am using is "Smartphone France ROM by spfrance - Based on HTC Magic, dedicated for European users", but while using the original ROM it was the same...
Any ideas on this?
I have already created a topic on this, but up to now, had no luck:
http://forum.xda-developers.com/showthread.php?t=569319
On my g1 and my new mytouch i have the same ridiculous issue. The battery will charge to 100% and then without using it will read like 50% after an hour or so. I put it on the charger and its at 99% after about 5-10 minutes. The battery just doesnt read properly, it never has for me. Sometimes itll say 30%, 40% or any unbelievable number but its really at 100% percent. The absurdity of it all is absolutely infuriating.
Heard that Magic needs a bit overcharge and topup charging at the first place to keep the battery runs longer.
havn't got the source here but it was form vodafone forum and the message was posted by the official support over there.
i dont have this issue with my vodafone 32B
i can use it for 2-3 days with minimal use
with average calling and medium usage it lasts 1,5 days.
no unusual draining.
just when i play tower defence, it lasts less than a day.
snudel said:
i dont have this issue with my vodafone 32B
i can use it for 2-3 days with minimal use
with average calling and medium usage it lasts 1,5 days.
no unusual draining.
just when i play tower defence, it lasts less than a day.
Click to expand...
Click to collapse
Can you tell me what is your ROM and your radio version?
i used qtek 1.6
now i am using RAV 1.6.2 http://forum.xda-developers.com/showthread.php?t=538645
i am sick of the speed with hero roms. so i am back to non-heroes
battery is even better now because this rom needs less cpu
snudel said:
i used qtek 1.6
now i am using RAV 1.6.2 http://forum.xda-developers.com/showthread.php?t=538645
i am sick of the speed with hero roms. so i am back to non-heroes
battery is even better now because this rom needs less cpu
Click to expand...
Click to collapse
What is your Radio version?
where do i see the radio version?
Turn off the phone, then push the back button + power button, you should see something like this:
SAPHIRE PVT 32B SHIP S-ON G
HBOOT-1.33.0007 (SAPP10000)
CPLD-10
RADIO-2.22.19.26I
Saphire unknown 32b ship s-on g
hboot-1.33.0007 (sapp10000)
cpld-10
radio-2.22.19.26i
Humm, damn, the same as mine...
The only difference is the spl..
Does anyone knows if the the spl can influence the battery life?
Related
Anyone else experiencing excessive battery drain on their HD2?
I am interested to know if this is just my phone or if it actually just chews through that much juice.
I have had windows mobile phones for several years so I know all the basic ways to keep battery drain down.
Stuff that I have generally found:
1. If I keep the screen turned on without it going blank I lose about 1% every 2 minutes.
2. If I am browsing that figure almost doubles.
3. My old Touch HD used about 5% battery overnight when in standby but this phone will go through about 25%.
4. The phone gets really hot when browsing (much hotter than my old Touch HD)
I have tried flashing ROM's and Radios but nothing seems to help.
I am not running any software on the phone that I wasn't running on my old HD1.
I have only had the phone for a week so I am not sure if this is normal but I would be very surprised if HTC released a phone that lasts for only a few hours on one battery.
+1
-1% every 3 minutes
-4% during the night (when i'am sleeping)
MAXIMUM : 45/48 HOURS
Crash95 said:
+1
-1% every 3 minutes
-4% during the night (when i'am sleeping)
MAXIMUM : 45/48 HOURS
Click to expand...
Click to collapse
I wish I got 2 days
we really need extended battery ,hd1 battery was much more better.
Good mate but yes i agreee HTC has come up with a battery eating device this time around. My device on full charge just gives in around 8-10 hrs. This might be dat my EDGE is on and 7 mails accounts sending mails back and forth.
but truly i think that HTC better look into this very seriously cause more and more ppl are suffering in this battery drain..
Any of flashing roms and radio not helping either... did a complete hard reset but no step up
HTC come with longer battery battery for bigger devices soon......
The only solution i see now is get one of those extra battery worth mind bogling £52.87
I've had this problem ever since flashing to 1.66, I flashed the radio to 2.07.50.27 as this was said to solve the problem but it hasn't made any difference after a few days of use. My battery life used to be significantly better when I was on the original stock ROM, so much so I'm considering going back to it
I also know all the tricks as to clawing back the battery drain, my phone is idle on my desk at work most of the time and I don't use Wi-Fi, all the location stuff is turned off as are weather, stock and other updates plus my screen is set to 30% then off after 60 seconds. Despite all of that I lose 1% every 2-3 minutes
It seems to me that perhaps the radio is checking for reception pretty much constantly rather than say, 5-10 mins perhaps? This used to be a problem on my old Blackberry Storm but a few fimware updates solved it, eventually!
The only other thing I've noticed since the update is that once the battery drops below 50% or so, the drain seems to slow, I don't know if this is perhaps because the phone goes into some sort of semi-power saving mode?
Suggestions/hints welcome! I've had a semi-thorough look into this on the forums and tried most of the suggestions but still the problem remains. Will battery life improve after a few charges perhaps as this was a trait of my Storm's battery, the more you charged it the better the day to day battery life was (and no it wasn't because I had it plugged in all the time! Over time the general charge just seemed to improve when roaming).
Thanks!
Piemole said:
Anyone else experiencing excessive battery drain on their HD2?
I am interested to know if this is just my phone or if it actually just chews through that much juice.
I have had windows mobile phones for several years so I know all the basic ways to keep battery drain down.
Stuff that I have generally found:
1. If I keep the screen turned on without it going blank I lose about 1% every 2 minutes.
2. If I am browsing that figure almost doubles.
3. My old Touch HD used about 5% battery overnight when in standby but this phone will go through about 25%.
4. The phone gets really hot when browsing (much hotter than my old Touch HD)
I have tried flashing ROM's and Radios but nothing seems to help.
I am not running any software on the phone that I wasn't running on my old HD1.
I have only had the phone for a week so I am not sure if this is normal but I would be very surprised if HTC released a phone that lasts for only a few hours on one battery.
Click to expand...
Click to collapse
You need to indicate what services you have running. Do you have any data services running eg: location services, push mail, weather? all of these have a bearing. In addition, network services can also drain a battery, especially if the signal is weak and the phone have to search for a transmitter, or 3g services.
Hexjibber said:
The only other thing I've noticed since the update is that once the battery drops below 50% or so, the drain seems to slow, I don't know if this is perhaps because the phone goes into some sort of semi-power saving mode?
Thanks!
Click to expand...
Click to collapse
That is a very interesting comment. Although since upgrading to radio 2.07.51.05_2 I have had very good battery life, I too have noticed a slowdown after 50%
romac said:
You need to indicate what services you have running. Do you have any data services running eg: location services, push mail, weather? all of these have a bearing. In addition, network services can also drain a battery, especially if the signal is weak and the phone have to search for a transmitter, or 3g services.
Click to expand...
Click to collapse
Nothing is turned on, everything is set to manual.
As I stated I know all the basic stuff. I understand that all these things have a bearing on battery loss.
Everything I stated in the first post is for when I have nothing running. The phone is just sitting there running sense, thats all.
I have had my HD2 for a few days now. I am on Vodacom in South Africa.
I have not had a problem with battery life.
Yesterday i unplugged from the charger at 07:00. I spent about 1 and 1/2 hours of talk time on the phone, it was permanently connected to 3g doing weather updates etc. Sent and received a couple of sms's. Also played with a few tweaks and reboots.
When i got home at about 18:00 i had over 30% battery. I then surfed the web for over 2 hours to drain the battery.
try setting Network Selection to Manual
Piemole said:
Anyone else experiencing excessive battery drain on their HD2?
I am interested to know if this is just my phone or if it actually just chews through that much juice.
I have had windows mobile phones for several years so I know all the basic ways to keep battery drain down.
Stuff that I have generally found:
1. If I keep the screen turned on without it going blank I lose about 1% every 2 minutes.
2. If I am browsing that figure almost doubles.
3. My old Touch HD used about 5% battery overnight when in standby but this phone will go through about 25%.
4. The phone gets really hot when browsing (much hotter than my old Touch HD)
I have tried flashing ROM's and Radios but nothing seems to help.
I am not running any software on the phone that I wasn't running on my old HD1.
I have only had the phone for a week so I am not sure if this is normal but I would be very surprised if HTC released a phone that lasts for only a few hours on one battery.
Click to expand...
Click to collapse
Same here with and without stock ROM.
yeah.. the phone is a battery sucker.... another cons of HD2....
This is very interesting to read because I do not have this problem. When I left my HTC HD2 on last night (I woke up at 4 in the morning to get something to drink and unplugged it) and then woke up at 8, it was at 98%. That means it went from 100% to 98% in 4 hours. Not to bad imo.
I am now at work and it is 15:34, and I am at 87%. I have made some calls, watched some videos, send a few text messages. Not much (I am at work so I got other things to do). So 08:00 (98%) - 15:34 (87%) - that's 7 and a half hours, with some calls, text messages and a video.
I am pretty sure when I get home at 18:30 the battery will still be above 75%. Then I connect to my wifi at home, refresh twitter, weather, browse the web a little bit, check e-mail etc. So that will drain my battery a little more.
But overall I have not had any problems with my battery life. I always make it trough a day, and never have a problem like 'damn my battery is almost done and I am not near a charger'.
Some info that might help:
I do not sync ANYTHING automatically. I still have some things to do with my Vodafone contract and do not have an unlimited plan yet. I only sync at home on my own wifi connection. For me this is not a problem, because I only need to refresh the weather each morning to see what the day is going to be like. Twitter I only do when I have the time. Stocks I do not use.
I have screen brightness set to automatic.
I am on 3G most of the time.
I am running the official 1.66 Dutch ROM.
I have some tweaks, games and programs installed.
I hope you all solve this issue, because it just can not be that my HD2 has a good battery life, and your HD2 not
Kind Regards
EDIT @ 17:00 still 87%.
I am in a 3G 2100 only network (I don't have 2G functionality).
ROM: Artemis 3.0
Radio: 2.06.50.23_3
Customization: Seiya 6.5.5
I don't leave any automatic updates on, except for my e-mail account every 2 hrs.
I never close my connection.
The drainage overnight is -3% (8hrs).
The battery lasts at least 12 hrs of intense usage.
Normally I have to recharge every second day (e.g. I charged last night, I answered a few calls, I did some IM and browsing and I still have 73% left).
For a phone with a 1 GHz processor, a 4.3" screen and a tiny 1250 mAh battery I find the drainage is rather decent.
Mind you, I ALWAYS do at least one full charging cycle to my battery after flashing a new ROM. I mean: full discharge, battery out 1 min, full charging in OFF mode, battery out 2 mins.
27firesnake said:
Mind you, I ALWAYS do at least one full charging cycle to my battery after flashing a new ROM. I mean: full discharge, battery out 1 min, full charging in OFF mode, battery out 2 mins.
Click to expand...
Click to collapse
I have seen this process recommended a couple of times now. What is the theory behind it if you don't mind me asking?
maybe its also becouse some of us couldnt wait using the hd2 when they got it (like me) before it was fully charged for the first time
anyway my battery life has improved a little bit, i was at 74% this morning and did a lot of browsing, installing, tweaking and now its at 3%. it used to be much worse
I have battery consuming problem from time to time.I did everything:
installed new stock rom 1.66;
transfered all data which phone is using from card to phone memory(pictures,icons,sounds.etc...)
all updates are done manually;
Gprs connection is swiched off on the idle after one min;
One night it is loosing from 2 to 4%;
another from 30 to 40%
and it is eating memory from 10 to 15mb
I think that it is radio which is causing battery drainage so fast(to much communication wit a base stations,because when I am checking spb wireless monitor in the morning,there is no any data traffic.
I hope they can solve problem,because it is getting me mad and crazy
Try setting the screen brightness to 10-20% (on battery powered)
and dim backlight after 10 seconds (on batter powered).
It helps a lot, at least for me.
creed said:
I have seen this process recommended a couple of times now. What is the theory behind it if you don't mind me asking?
Click to expand...
Click to collapse
as far as i know, the battery has an integrated digital circuit (ic) which estimates the state-of-charge (soc). the procedure resets/calibrates the ic to obtain a more accurate estimation. since the radio rom is in charge with the power management (among other things), by changing it you decalibrate the "gauge".
i don't know if i've got the theory right but i tested this myself and it surely works.
Ok, yesterday I put my battery to the test. I decided to use my phone non-stop until the battery drained. During the entire test I had running the following tasks on Task Manager:
Opera---with tap vibration enabled
Messages
Active Sync
Word Mobile
Hotmail
I had:
Push E-Mail (hotmail) "As items arrive" (receiving emails approx every 5-10 mins).
Backlight Automatically adjusted on, with both battery and external power set at 40%.
LeoCpuSpeed app running at 998 MHz.
Constant changing signal strength from 1-4 bars and H to 3G to E and back to H(Inside the lobby of a building).
Weather, Twitter, Facebook and everything else to be updated automatically, each one being set to update asap.
BsB Tweaks settings in the pics below.
Apps Installed: see pic below.
Also had some texting, about 30 messages from 9:30pm to 11:00pm with notification set to vibrate and ring. No phone calls
So, if you think your battery was bad...this is how mine did
100% -- 8:25pm
96% -- 8:38pm
89% -- 8:53pm
83% -- 9:10pm
76% -- 9:27pm
70% -- 9:44pm
63% -- 9:59pm
55% -- 10:18pm
47% -- 10:37pm
40% -- 10:53pm
34% -- 11:10pm
25% -- 11:28pm
16% -- 11:45pm
8% -- 12:03am
0% -- 12:10am
Click to expand...
Click to collapse
Pretty much my battery did not last even 4 hours. Keep in mind I was browsing Facebook and XDA forums on Opera non-stop. Also noticed when the charge was at 8%, it started draining 1% per minute
My conclusion...I will have to get a spare battery cause a single battery can't handle my every day usage Have tried different Radios, but they all seem the same to me strength and signal wise. I haven't tried any other Custom ROM than KUMARS.
In case I forgot something I'll add it later on.
I also had very bad battery life, i have flashed a few different roms since ive got the phone about a week ago, and id have to say
forum.xda-developers.com/showthread.php?t=667601 this rom has outstanding battery life. i would definatly give it a shot.\
nirvanafreak919 said:
I also had very bad battery life, i have flashed a few different roms since ive got the phone about a week ago, and id have to say
forum.xda-developers.com/showthread.php?t=667601 this rom has outstanding battery life. i would definatly give it a shot.\
Click to expand...
Click to collapse
Pal, how would you compare this rom with Kumar's in terms of Battery life?
My stock rom had slightly more battery life compared to Kumars.
I had terrible battery life with the Cell Evo ROM.
I have had terrible battery life ever since I had my phone. However, I am currently using ChuckyROM with 10.50.19_2 radio and it's actually getting me through the day now.
wow u had all that crap going on & it lasted about 4 hours and ur complaining? seriously???
how long did u expect it to last? large screen, 1 ghz processor and a constant connection online... i bet ur HD2 outlasts ur laptop
thats like saying, i filled up my gas tank before i left home, drove like a maniac, floored the gas pedal after every red light & stop sign but i expect my car to not run out of gas.
real world tests are more acurate... without all that on u should get a full day of "normal" usage...
secano said:
Ok, yesterday I put my battery to the test. I decided to use my phone non-stop until the battery drained. During the entire test I had running the following tasks on Task Manager:
Opera---with tap vibration enabled
Messages
Active Sync
Word Mobile
Hotmail
I had:
Push E-Mail (hotmail) "As items arrive" (receiving emails approx every 5-10 mins).
Backlight Automatically adjusted on, with both battery and external power set at 40%.
LeoCpuSpeed app running at 998 MHz.
Constant changing signal strength from 1-4 bars and H to 3G to E and back to H(Inside the lobby of a building).
Weather, Twitter, Facebook and everything else to be updated automatically, each one being set to update asap.
BsB Tweaks settings in the pics below.
Apps Installed: see pic below.
Also had some texting, about 30 messages from 9:30pm to 11:00pm with notification set to vibrate and ring. No phone calls
So, if you think your battery was bad...this is how mine did
Pretty much my battery did not last even 4 hours. Keep in mind I was browsing Facebook and XDA forums on Opera non-stop. Also noticed when the charge was at 8%, it started draining 1% per minute
My conclusion...I will have to get a spare battery cause a single battery can't handle my every day usage Have tried different Radios, but they all seem the same to me strength and signal wise. I haven't tried any other Custom ROM than KUMARS.
In case I forgot something I'll add it later on.
Click to expand...
Click to collapse
Stupid question, and this is something that we all as cell phone owner for the past decade should know.. did you train the battery? i get 24 hours out of mine, with contstant push email on 4 diff accounts, texting all day a few pix, a few sites visited
rysky007 said:
Stupid question, and this is something that we all as cell phone owner for the past decade should know.. did you train the battery? i get 24 hours out of mine, with contstant push email on 4 diff accounts, texting all day a few pix, a few sites visited
Click to expand...
Click to collapse
Sure did, the max I can get on normal usage is around 10 hours though.
Battery Training
I do not believe the HD2's battery requires training. Older styles of batteries had something called a "memory effect", where a battery not fully depleted, then fully recharged, created a shortened cycle time.
Newer battery components, IE Lithium Ion, or Lithium Polymer do not have this characteristic. Accordingly, there is absolutely no need to "train" the battery.
Now the only requirement with the newer battery types, is to maintain a charge between 50-70% during long term storage (ie what your phone was charged to when first received).
Moschdog said:
I do not believe the HD2's battery requires training. Older styles of batteries had something called a "memory effect", where a battery not fully depleted, then fully recharged, created a shortened cycle time.
Newer battery components, IE Lithium Ion, or Lithium Polymer do not have this characteristic. Accordingly, there is absolutely no need to "train" the battery.
Now the only requirement with the newer battery types, is to maintain a charge between 50-70% during long term storage (ie what your phone was charged to when first received).
Click to expand...
Click to collapse
+1
...........................
got my tmous hd2 launch-day... battery sucked so bad I cried (on the inside too). Returned it for another (hard as hell as I had to call corporate and have them call a store and make them hold one when some came in) after 2 weeks and all battery problems gone. 2 days easy with 1 charge. and I am a bit of a media whore: videos, podcasts, web, push, etc.
Moschdog said:
I do not believe the HD2's battery requires training. Older styles of batteries had something called a "memory effect", where a battery not fully depleted, then fully recharged, created a shortened cycle time.
Newer battery components, IE Lithium Ion, or Lithium Polymer do not have this characteristic. Accordingly, there is absolutely no need to "train" the battery.
Now the only requirement with the newer battery types, is to maintain a charge between 50-70% during long term storage (ie what your phone was charged to when first received).
Click to expand...
Click to collapse
mine sure did, the first day i got it, it went dead about 6 hours after i charged it..
2 weeks later and it was down to about 60% after a whole days use and it would die during the night if i didnt put it on the charger.
now its been about a month and now it will go a whole day and a whole night and still be in the 40%s in the morning.
I don't see the need to have all that stuff running continously but it seems that the battery lasted as much as it should. I close out all programs propperly when done but I have the screen at the brightest and still the battery lasts me 30 hrs on average. I don't think I could kill the battery in less than 4 even if I tried real hard.
currently using the rom bellow... not getting 10 hours on my phone... my life relies on e-mail. So few calls rarely any texts. But 4 e-mail accounts with each having a send/receive every 5 mins... with downloading the full e-mail. I don't know what to do...
You are correct that Li batteries have no true 'memory' but there is a bit more worth mentioning... Here is a great article on Li battery extension & calibration:
http://www.batteryuniversity.com/parttwo-34.htm
Moschdog said:
I do not believe the HD2's battery requires training. Older styles of batteries had something called a "memory effect", where a battery not fully depleted, then fully recharged, created a shortened cycle time.
Newer battery components, IE Lithium Ion, or Lithium Polymer do not have this characteristic. Accordingly, there is absolutely no need to "train" the battery.
Now the only requirement with the newer battery types, is to maintain a charge between 50-70% during long term storage (ie what your phone was charged to when first received).
Click to expand...
Click to collapse
my battery is horrible too, i cant last more than 10 hours without bareley using it. i took it off charge 7:30 a.m. took it to school, around 10 i texted a little bit used the camera to take about 10 shots (no flash), and i played bubble breaker for about 15 minutes. brightness was on 20...keep in mind after i close everything i fully close it through task manager.
around 11 my battery was at 65 percent. and i only USED the phone for about 25-30 minutes of light usage. i honestly dont understand how a battery can be this bad with a phone. the battery is HORRIBLE!!!!!
i got 3 different batterys exchanged so far, none of them work goood. i conditioned it as well... fully charged then fully drained then fully charged again
please help =( i dont even use my HD2 anymore because i HATE the battery, i strictly use my BOLD 9700 until i find a solution to the battery problem
NYC, the biggest issue with the HD2 battery is its low capacity (1230mAh), which is lower than most smartphones in general. Add the huge screen (a big battery draw all by itself) and the other power-hungry functions of a super-capable phone, and it can become very difficult to maintain a charge.
Now, in your case, I'd suspect that you have something that's updating data in the background, at least once if not repeatedly. Twitter, mail, weather, etc are all possible culprits. Even if they only update once in the morning (for example), they flip on your 3G connection which then remains on until you switch it off manually. Bluetooth and wifi also drain the battery quickly, even if they're just "on" and not being actively used by you.
rysky007 said:
Stupid question, and this is something that we all as cell phone owner for the past decade should know.. did you train the battery? i get 24 hours out of mine, with contstant push email on 4 diff accounts, texting all day a few pix, a few sites visited
Click to expand...
Click to collapse
Sit! Goooood battery. You're such a well trained battery, yes you are, yes you are! If you keep my phone running all day I'll give you a nice 1 amp charge, yes I will, yes I will!
couldn't help it.
-Tony
I get from 7:45am to 2:00am pretty regularly out of my phone--push emails, IMs all day, about 200 messages sent/received, 120 min of calls, and probably 2 hours of browsing. I have wifi connected from 6pm-2am.
zimzoom said:
I get from 7:45am to 2:00am pretty regularly out of my phone--push emails, IMs all day, about 200 messages sent/received, 120 min of calls, and probably 2 hours of browsing. I have wifi connected from 6pm-2am.
Click to expand...
Click to collapse
That is really hard to believe...specially the wifi from 6pm to 2am
My phone drops to 11% after 24 hours of doing nothing with it besides fiddling for about 10 minutes. The signal bar is 3 ~ 4 bars at all times on a 2G band. I'm not certain why it's this crappy even though I pretty much leave it on standby. Any ideas?
Fully charged my phone night before last and went to work in the morning (9am). I didn't touch it all day, didn't even turn it on. On my drive home at 5pm it was dead, off.
I plugged it in with the phone off when I got home and saw that it was fully charged a few hours later around 10pm and I booted it up and left it alone. This morning it was dead, off.
Looking at the apps that take up my battery doesn't work because it doesn't retain information what happened to the phone prior to the last reboot. Not sure what to do. My awake time matches my standby time exactly. It's obviously a 100% awake time problem but what's triggering this?
I'm on Fresh .3 with absolutely no other mods. I don't think I have any apps that ping outside servers. So what the ****!?
EDIT:
lulz, I just realized I haven't been even able to use the phone in 3 days due to this issue
Something is eating your battery obviously.
Restore to stock and see if you have the same issues.
Bielinsk said:
Something is eating your battery obviously.
Restore to stock and see if you have the same issues.
Click to expand...
Click to collapse
That's a PITA. This is a clean fresh .3 rom install with only logmein, dropbox and couple non-online games installed. Why is this phone such ****ing fail right now.
Have you removed the Favorites widget? Doing that stopped all battery drain problems for me. Just delete the widget.
First thing to check is if you have a sufficient cellular signal. If you are getting a weak signal it will cause poor battery life. If cell signal strength is not your problem then it is definitely something you have installed on it eating away at your battery. That said check/do the following:
1) Check how frequently you have your accounts syncing
2) Before the phone dies look in your battery use to see what's eating your battery
3) Install a task manager/killer (I use Advanced Task Killer)
4) You don't have to do this one but it does help. I use a program called Startup Auditor to disable startup on apps I don't need to run when the phone first boots (you'd be surprised how many are in there).
cbuc1125 said:
Have you removed the Favorites widget? Doing that stopped all battery drain problems for me. Just delete the widget.
Click to expand...
Click to collapse
delete it completely or remove it from one of the home panels?
the "time without signal" workarounds seem to prove the most effective for me. in addition, reduce background usage and automatic update frequencies as best as you can.
according to this thread [http://forum.xda-developers.com/showthread.php?t=709768] (and link within), HTC has acknowledged some issues and is preparing to deploy a few fixes.
You are running someone else's ROM, there could be a problem with the radio, or a problem with the way it was loaded.
If you are in an area where you don't get signal, you are going to drain the battery, and FAST.
Do you have 4g on but not in a 4g area?
I am...
fully rooted and have fresh .3 as well. I am getting over 30hrs with moderate use and the last hour of that I had everything on to purposely run it down to dead. (was doing a toastch recommeded battery meter calibration).
Took my phone off the charger last night at 7:30 pm. It's 2:23pm and I have 31% left. I have Wifi, BT, and Background apps with auto sync turned on.
I would say you might be experiencing the Motorola cell tower problem. HTC has confirmed that the EVO is not playing well with cell towers that have motorola transmitters. It is causing the phone to use more energy to dial in the tower.
To be sure...
1. Set all apps and widgets to manual update or update once a day.
2. Get rid of the people app or widget from any home screen.
3. Go into Gtalk and uncheck auto sign in. Then sign out when you exit the program.
4. charge the phone until the green light comes on. Don't use a battery meter. The second the green light comes on, go into recovery and wipe the battery stats. Reboot the phone and run it until the battery dies and will not longer power the phone. This does nothing for the battery but does recalibrate the internal battery meter.
5. For maximum life...turn off: background data, WiFi, BT, and Mobile networks when not using. keep screen at 1/2 brightness.
If I do the above and manually update mail, weather, social apps, etc... and only turn radios on when I need them, I can get 40 hrs. out of my EVO and this is under moderate to high moderate use.
One other thing....plug your phone in for 10 minutes. Then unplug it and go into immediate stand by for like 30 minutes. Go to settings>about phone>battery>battery use>cell standby. Time without signal should be very low....anything over 10-15% and I'd suspect that if you did everything in 1-5, you have a towers issue robbing your battery.
I was having awake time issues with Fresh .3, so I switched to DamageControl, and everything has been great. Unplugged this morning at 7, and I still have 75% battery remaining. Better battery life than the Hero or BlackBerry Tour!
scirio said:
That's a PITA. This is a clean fresh .3 rom install with only logmein, dropbox and couple non-online games installed. Why is this phone such ****ing fail right now.
Click to expand...
Click to collapse
I don't have any of those problems at all. You probably have a bad battery/phone.
sherman901 said:
I don't have any of those problems at all. You probably have a bad battery/phone.
Click to expand...
Click to collapse
i would agree with you but i am having a similar issue and sometimes i get great battery life and other times its just unacceptable. Check out my thread here :http://forum.xda-developers.com/showthread.php?t=709704
scirio said:
Fully charged my phone night before last and went to work in the morning (9am). I didn't touch it all day, didn't even turn it on. On my drive home at 5pm it was dead, off.
I plugged it in with the phone off when I got home and saw that it was fully charged a few hours later around 10pm and I booted it up and left it alone. This morning it was dead, off.
Looking at the apps that take up my battery doesn't work because it doesn't retain information what happened to the phone prior to the last reboot. Not sure what to do. My awake time matches my standby time exactly. It's obviously a 100% awake time problem but what's triggering this?
I'm on Fresh .3 with absolutely no other mods. I don't think I have any apps that ping outside servers. So what the ****!?
EDIT:
lulz, I just realized I haven't been even able to use the phone in 3 days due to this issue
Click to expand...
Click to collapse
I seem to be having the same problem as you and it is quite frustrating. I get a steady 10% battery drain every hour even when its idle. I tried juice defender and setcpu and it is still the same. I turned off all my sync accounts and nothing. I also have systempanel and it doesn't seem like theres a rogue app eating my batteries.I'm going to truth to stock tonight to see if something is wrong with my phone. Did you ever figure out what was wrong with your phone?
AVA9 i get 20 hours a charge
but YES something is eating your battery install system pan have and let it run a bit and check the info id bet its
1 your evo spend a lot of tWOS
2 you have a rogue app eating your battery
Way to bump an ancient thread.
DOH dear god i did not look at that lol
I do apologize for bumping such an old thread, but I feel like this thread has already asked much of what I also wanted to ask but have not reached a conclusion. Therefore I would like to try and solve the problem or provide as much info as I can to solve the problem.
I indeed have installed systempanel and here are the screenshots for the day.
imgur.com/mzAE3.png
imgur.com/zA2Vi.png
imgur.com/OLDtt.png
(sorry my account is not allowed to post links)
As you can see besides the internet, there is nothing else thats taking up the battery. Also I took this pic after I put the phone on the charger for a bit, it was at ~ 13% before. The battery usage information says a majority of the battery was used by #1 android system and #2 cell standby, it was neck and neck almost, with #3 being phone idle. My weather app polls every 3 hours, my facebook syncs every 30 mins, my htc sense facebook syncs once a day, and I have not configured any other emails except for two gmail acconts, which received probably 3 emails throughout the whole day.
I just used setcpu today, it made absolutely no difference. Same results as yesterday when I did not have setcpu. Thanks in advance for the help!
dude you need to try my setup: superevo and setcpu
i got 7 days of battery using the evo as a simple phone.
http://edsandroid.blogspot.com/2010/10/7-days-battery-potential.html
proloss said:
dude you need to try my setup: superevo and setcpu
i got 7 days of battery using the evo as a simple phone.
http://edsandroid.blogspot.com/2010/10/7-days-battery-potential.html
Click to expand...
Click to collapse
Why would anyone use an EVO as a simple phone.
I am beginning to think peoples opinions on moderate use vary tooooo much. The EVO is similar to an unplugged laptop. The more you make the cpu work the faster your battery is going to drain.
It seems some people just dont get that.
Sent from my PC36100 using XDA App
scirio said:
That's a PITA. This is a clean fresh .3 rom install with only logmein, dropbox and couple non-online games installed. Why is this phone such ****ing fail right now.
Click to expand...
Click to collapse
Sounds like Operator error.
I've had the HTC Aria for about four days now and my biggest issues is the battery drains to quickly. At first I attributed it to use because android phones prompt you to use them more often. However, even without use it still drains pretty rapidly. Does anyone know of a solution to this issue software wise. I have already turned off Bluetooth, GPS and Wifi. Are there other solutions
I got mine on Saturday, and I've actually gotten pretty good battery life out of it. I'm still in the habit of charging it every night, like I had to do with my old WinMo phone, but I think I could probably go two days without a charge. And that's with GPS / data always on, Wifi parts of the day, and pretty heavy use, since I'm always playing with it.
Have you tried something like Advanced Task Killer to keep apps closed that you aren't using? You can also adjust your screen brightness and timeout to try and save power.
It says that of my power is used by cellular idle or something like that 50% of it was used by that. Could it be my AT&T service
I don't get more than 10 hours out of mine. When I know I will be out all day, I turn the screen brightness almost all the way down to help conserve energy.
Good as it Gets.
With basic usage (some texting, a few calls and some market browsing or playing a game here and there) about 2 to 2.5 days without charging. Maybe the ones having issues with there phone sucking battery have to many widgets running.
In my current configuration I am only using 3 of my screens and only 3 widgets [favorites (small one), HTC clock/weather widget, and the HTC calendar widget (small)]. I have my work email checking every 30 minutes for syncing. I also have gmail and the default mail app pulling mail. I run ATK but only to kill apps on startup (cause it runs almost everything), other than that you don't need a task killer as you will have to reload these tasks next time and that will drain battery. I don't use it after that to kill anything. I am also running my screen at about 30% brightness.
Just some tips, widgets are nice, but they suck the battery life as well as constant updates. Check to see what you are running and disable/remove what is not needed or adjust sync times.
My battery life is fine. I got two days over the weekend with light usage. You need to look at what services are running and disable any widgets that you dont need. You may also want to look at the sync settings and turn off things you dont use (such as news). You do not need a task killer.
Also, see this post:
cranked said:
some quick tips:
1) disable market notifications - Market -> Downloads -> Notifications -> 'Don't Notify Me
2) Lower the sync times for your social network apps like twitter and facebook (or make them manual)
If you still suffer, have a look at some of the great tips HERE on the Cyanogenmod forums...ignore 1 and 3.
Click to expand...
Click to collapse
Also one might do *#*#4636#*#* then change phone setting from WCDMA to GSM .... Then that get little more out of battery...
It's critical that you turn off auto-sync; I have found that it absolutely destroys battery life.
Before I was losing maybe 5-10% every hour on standby, but ever since turning off auto-sync, I'm still sitting at 100% battery after 5 hours of standby.
Turning off mobile data/Wi-Fi doesn't make an impact on battery life, in my experience.
hi2u2 said:
It's critical that you turn off auto-sync if you don't want update to happen, such as Facebook, email, google account (cal/contact) sync, etc..; I have found that it absolutely destroys battery life.
Before I was losing maybe 5-10% every hour on standby, but ever since turning off auto-sync, I'm still sitting at 100% battery after 5 hours of standby.
Turning off mobile data/Wi-Fi doesn't make an impact on battery life, in my experience.
Click to expand...
Click to collapse
I edited your response..
Auto-Sync in itself is not going to be a problem.. Depends on what's syncing. EVERYONE will have different battery life because everyone uses their phones differently. Different configurations, different accounts used, different amounts of traffic on those accounts, not to mention actual usage patterns.
khaytsus said:
I edited your response..
Auto-Sync in itself is not going to be a problem.. Depends on what's syncing. EVERYONE will have different battery life because everyone uses their phones differently. Different configurations, different accounts used, different amounts of traffic on those accounts, not to mention actual usage patterns.
Click to expand...
Click to collapse
90% of people will have *slightly* different battery life.
5% of people will drain it fast.
5% will use it like a voice phone and might even get 16 hrs out of it.
But to turn off all apps makes for an invalid test because then you're testing the phone as if it were a non-smartphone, like a voice only phone.
I think the battery is too small for me and probably too small for most people. I look forward to fat batteries for this great phone.
bwolmarans said:
90% of people will have *slightly* different battery life.
5% of people will drain it fast.
5% will use it like a voice phone and might even get 16 hrs out of it.
But to turn off all apps makes for an invalid test because then you're testing the phone as if it were a non-smartphone, like a voice only phone.
I think the battery is too small for me and probably too small for most people. I look forward to fat batteries for this great phone.
Click to expand...
Click to collapse
My wife gets 2+ days out of hers... The battery is not that much smaller than my Nexus One, a more powerful phone, and I'm a power user with a lot of crap running including IMAP push mail, weather syncing... I look in at Market, Facebook, Twitter and manually sync those types of things etc.. I can easily get a full day out of it, off charger ~8am back on the charger midnight, 20-30% left. What I don't do is sit staring at my phone all day or play games for 8 hours at work, nor do I use it as a mp3 player..
It has been almost a month since I've gotten the Galaxy S2.
I literally waited like a longing puppy for almost half a year to get this into my hands.
I have to admit, it is one of the most beautiful creations to ever grace our earth, but gosh, it has this one big, big flaw... (for me) battery life. Before you dismiss this as another battery life complaining thread, hear me out...
I have tried EVERYTHING.
Ever since 2.3.3, battery drain. Then 2.3.4 was announced... NO MORE BATTERY DRAIN. The news caused a burst of elation, but it was all too brief. Flashed to 2.3.4, same deal.
I've tried all the ROMs-- Litening, Villainrom, Cognition, Infusion (now defunct).
I've tried several kernels -- the standard CF kernel, neophyte's, mirage, etc.
I've calibrated my battery after each flash.
I've tried downclocking it with SetCPU.
I've frozen so much with TitaniumBackup.
Dormancy settings, system update settings, modem roms, I've tried them all.
I even purchased, in desperation, a third party battery which claimed to have 2000mAh capacity.
All to no avail. Nada, zilch, non. NOTHING has worked for me.
Last night for example, I had charged my phone to 100%. When I woke up 7 hours later, it had fallen to 63%.
Therefore can deduce that consumption is is about 5% per hour with screen OFF.
I have also made it a point to test a different ROM/kernel for at least 3 to 5 days before I make a change.
Now I really don't know where I'm going wrong, yeah I do have a few widgets and stuff, but what is a phone like this without widgets?
I am getting so sad over this issue. This phone is so perfect in every other way.
Why? Is it just me?
One no mention of actual battery life .
Two phones get fed up with multiple roms kernels etc rammed down their throat and dont work well .
jje
What exactly do you mean by 'battery drain' ?
Starting an new battery drain thread without even describing the type of battery drain is not a god start for this thread.
What is your idle drain? (% per hour when not using the phone).
How much "display on time" do you have when the battery is starting to be empty (no guessing, hard number from the battery menu please). A lot of people underestimates how much active use they have with SGS2.
Please also add graph for battery statistics, both the first page and also for the battery graph (press the small graph on top).
Just trying different ROM's in order to solve a battery drain issue is a bad idea, it is much better to find the root cause of the battery drain and solve that specific issue.
I mean I leave it overnight, and it falls from 100% to 60%.
It has never lasted me beyond 9 hours with mid level usage.
tjtj4444 said:
Starting an new battery drain thread without even describing the type of battery drain is not a god start for this thread.
What is your idle drain? (% per hour when not using the phone).
How much "display on time" do you have when the battery is starting to be empty (no guessing, hard number from the battery menu please). A lot of people underestimates how much active use they have with SGS2.
Please also add graph for battery statistics, both the first page and also for the battery graph (press the small graph on top).
Just trying different ROM's in order to solve a battery drain issue is a bad idea, it is much better to find the root cause of the battery drain and solve that specific issue.
Click to expand...
Click to collapse
Apologies, my post has been updated. I don't have a good graph with my now since I'm charging, but I will post one up tomorrow.
Do widgets really make a big difference? Because that's the only thing that I have not really tested.
Could very well be a misbehaving app or widget. My phone in idle uses 0.5%-1% an hour with wifi on. Without wifi it goes slightly faster strange enough. I have some widgets that update every hour, gmail push, whatsapp and Samsung account sync.
Test without syncing and widgets and then re-enable things one by one to find the problem.
Another battery thread. That really IS depressing.
i just got my phone few days ago, battery life isn't great so far but it isn't as bad as your case.
I would recommend you do proper tests after starting fresh. flash a stale official rom, keep the phone barebones, dont install apps etc.. then test bat life with phone call usage.
Then slowly start adding and enabling things like gps, auto sync, background data and so on, till you find the cause. I think the battery life thing in the settings can help too.
Jeremy said:
I mean I leave it overnight, and it falls from 100% to 60%.
It has never lasted me beyond 9 hours with mid level usage.
Click to expand...
Click to collapse
40% overnight is huge, I get approx 5% in 7-8 hours.
With 5% drain per hour with no usage, haven't you tested to turn off things until the drain stops? I would start with wifi, SGS2 doesn't work well with some routers. Then just continue with the usual suspects: widgets that connects to internet etc, email sync, facebook etc. (freeze with Titanium)
Do this systematically, you could turn off several things at once, but not too many, try to find the real cause.
There is of course a possibility that your phone is broken, but that isn't my first guess.
Why does no one try Juice defender???
tjtj4444 said:
40% overnight is huge, I get approx 5% in 7-8 hours.
With 5% drain per hour with no usage, haven't you tested to turn off things until the drain stops? I would start with wifi, SGS2 doesn't work well with some routers. Then just continue with the usual suspects: widgets that connects to internet etc, email sync, facebook etc. (freeze with Titanium)
Do this systematically, you could turn off several things at once, but not too many, try to find the real cause.
There is of course a possibility that your phone is broken, but that isn't my first guess.
Click to expand...
Click to collapse
Oh yes, that night the 40% drain was with Wifi on, and I heard that there have been issues with the DIR-655, which I am using.
Anyway, even with wifi off, my battery life fell from 100% to 83% with a very slimmed down ROM, everything that could be frozen, frozen.
Polluxus said:
Could very well be a misbehaving app or widget. My phone in idle uses 0.5%-1% an hour with wifi on. Without wifi it goes slightly faster strange enough. I have some widgets that update every hour, gmail push, whatsapp and Samsung account sync.
Test without syncing and widgets and then re-enable things one by one to find the problem.
Click to expand...
Click to collapse
Yeah. That's a good idea, thanks.
Will try that over the weekend
TheSobadef said:
Why does no one try Juice defender???
Click to expand...
Click to collapse
I would, but the thing is, the battery life should not even be that bad in the first place.
Sounds to me like you have a rogue app. I get 12,14 hours of heavy usage with brightness set to roughly 75%.
Don't flame him. He has tried alot things prior to posting. This is the place to post. Try the criskelo rom. It is a great rom with great battery life. Freeze wifi sharing. Delete apps at the beginning that you don't use all the time then add extra apps one by one and see what impacts the battery level the most. Check update schedules for things like news widgets and beautiful weather-I have mine set to six hours or so. There is absolutely no reason why you can't last a full day with 30-40% left.
Well, first of all, it's just a phone, although an expensive one, so no need to be stressed.
Secondly, it sounds very much like you have a faulty battery or device. Maybe you should have replaced it as soon as you noticed the problem. There's definitely something wrong there if it goes from 100% down to 60% overnight (assuming it's not heavily used during that time).
You already tried most of the things that I would do to tackle the issue. Try swapping batteries for a few days with somebody with the same handset, and see what happens.
Good luck!
For giggles, why don't you hard reset your phone? Then, instead of loading tons of apps of questionable quality, task killers, memory managers, and battery monitors, just load the stuff you need everyday. Things like e-mail and social stuff. People that haven't tortured their phones with excessive crap seem to get better battery life without even trying. With over a hundred apps, all the syncs syncing, heavy Wi-Fi use, and Exchange push I'm now up to 14-18 hours with moderate to heavy use. If the experiment works, start loading the rest of your stuff on your phone to see what the impact is.
Another thing to consider is your network connectivity. Your carriers signal strength and infrastructure could be part of the problem. Certain carriers and locations seem to contribute a lot to batter drain. Also, the SGS2 is very router sensitive. It likes Netgear, D-Link not so much.
Good luck.
This is with a screen on time of 2:14 too, and overclocking to 1.52gHz
There is no battery issue, this phone has twice the battery life of the desire hd and thats a fact, i have not changed fast dormancy or anything, this phone is king for battery life.
Played games and browsed internet, i would say medium heavy usage
Using 2.3.3 KF3
Also if you had a laptop that lasted 10 hours with 63 remaining wouldnt you think that was good? This phone is the absolute top dog, i would even say its better than IP4 for battery now
Also used cardiotrainer to track my run this morning using GPS, ran for 30 mins and lost around 6 percent... Amazing!
TheSobadef said:
Why does no one try Juice defender???
Click to expand...
Click to collapse
A lot do but informed opinion is that it drains battery .
jje
JJEgan said:
A lot do but informed opinion is that it drains battery .
jje
Click to expand...
Click to collapse
Yep Juice defender sucks, and is not needed really...
You either have a rouge app sucking the life out of your phone,
Your syncing at too short periods (mine is set to 1 hour)
Your phone signal is weak so your phone is using more battery drawing 3g from your service provider