Database Users

Help - Battery Drain excessive

*jump to ashtricks for immediate problems without reading software/ROM changes.
I know this is going to be made especially difficult with all the different software/combo's that can be loaded, but I have to post this up and see if any one else has seen this and if it might be hardware or software.
I have a HERMS 100 (8525). I first got the phone in April with WM5 (don't know which build they might have been on then) and which ever Radio was coming on them then. My battery would usually last 2 days with my avg use.
This has been the case threw upgrades until the last 2-3 months. I upgraded From one version of WM6 to VP3G's 2.X build of WM6 and I upgraded the radio to which ever version was the newest at that time (maybe 1.47 or 1.50). I Noticed a sudden drop in battery life, but the phone pretty much always made it a full day even with high use, so I didn't think much of it. I did notice about this time that sometimes the phone would alarm me and say it had 20% battery remaining, but if I rebooted the phone it would say 80 or 90% power remaining when it came back on and work fine the rest of the day.
The following has been over the last month. I upgraded to VP3G's 3.0 and again later to 3.6 and again to 3.62. I noticed the battery continued to degrade throughout this time. So I upgraded the radio to 1.54. The battery continued to go down hill at an even rate, but I noticed something else, the battery would not take very long to charge, but was dying faster and faster.
Well I started tracking and experimenting. Starting last week (no change in software or ROM's for the last 2 or 3 weeks) the battery would rarely make it through the day even when the phone was not in use any during the day (Granted I get no cell service at my desk at work, but I never have even back when the phone would last 2 days searching for signal). Most days last week it wouldn't make it 5 hours from being unplugged even when the phone wasn't in use. I decided to run the battery all the way down to where it wouldn't even turn the phone on anymore as I had heard sometimes you needed to do that after a rom upgrade. It did not help, but I noticed that the phone said the battery was fully charged within 2 hours from being completely dead.
*
Today was the worst, I unplugged it after being plugged in all night. Unplugged it at 6:45am. I did not use the phone, it just stayed in standby (I hadn't even taken it out of standby any today. I am at work with no service (When I say no service, I don't mean sometimes it finds something, I mean no cell service from any carrier makes it past 10 feet of the front doors entering the building and I am about 150 feet from the closest wall to the outside). I grab the phone at around 10:30am to check on a meeting notice, clicked on the phone to wake up and the battery alarm alerted and the battery said I only had 20% power remaining. In 5 minutes of doing what I was doing the battery had gone down to 10% remaining (so the phone went from lost 90% of it's power, never being used in less then 4 hours). I went back to my desk, plugged the phone back in and within an hour I noticed the amber light on the front that I relate it to telling me it's charging had turned green, I unplugged it and checked it and the battery said it was full 100%. Could the battery really charge that fast?
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I know this would be easier if I could remember what radio and what version of WM5 came on this phone and loaded it back on and I am in the middle of downgrading the radio since I had ran WM6 with no battery issues separate from WM5 until I did that one upgrade with the radio. I guess I am curious if this could be a hardware (phone or battery) where it's not charging fully or if this seems to be a software issue.
I know all the factors that can be involved make this hard, but thanks for any responses you guys can give.

ok, how about this one, Is my battery screwed? I notice while I am using the phone the battery gets really hot. Today it did the same thing of all of a sudden saying I had 10% power after only using it for 5 mintues, rebooted the phone and now I am back to 70%.

Hi,
There's a lot on here about this problem. Have you read the wiki?
Some solutions you might try:
- turn wifi off.
- turn off all beams
- put in the fake server trick.
- search to see if you have any software that continuously polls the battery or is seeking an exchange server
- ensure all your apps fully close rather than minimise
- invest in a new battery.
WB

Thanks, I have gone through the wiki Continuasly since I got the phone in April, but with all the stuff out there, I could have easily missed something.
- turn wifi off - Never turn it on
- turn off all beams - Beaming disabled
- put in the fake server trick - Have to research that one
- search to see if you have any software that continuously polls the battery or is seeking an exchange server - have to check, don't have exchange server setup. I do have it checking emails every 15 minutes, but I never had any issues with that setting and the battery lasting a couple of days
- ensure all your apps fully close rather than minimise - X button set to close not minimize and I often check it to see whats running.
- invest in a new battery. - Will be doing that next. Just waiting to see what case I might get for Christmas.
Thanks again, I will research those other items.

I had a similar problem where the stock battery would only ever last for ~7-8 hours - even on standby. I got an extended life 3000mAh battery and that managed to last for about 14 hours.
I had a talk to HTC and they agreed to warranty claim it. I'm still waiting for it back... It was sent back to them on 14/11, and I'm still waiting.

Stop your device checking for emails for a few days and ses what happens. Definitely install the fake server trick. Activesync continuosly trying to do its dirty work can be a pain in the arsenal, at times.
Let us know how you get on.
WB

wacky.banana said:
Stop your device checking for emails for a few days and ses what happens. Definitely install the fake server trick. Activesync continuosly trying to do its dirty work can be a pain in the arsenal, at times.
Let us know how you get on.
WB
Click to expand...
Click to collapse
Well I turned off email checks last night and disabled the radio this morning so it wouldn't search for signal when coming to work and set the phone on my desk. I never used it this morning, just had it sitting on my desk in standby, until about 4 hours after I took it off the charger and the phone buzzed me and when I checked the phone the battery said 0% remaining and the phone cut off a few seconds later (now I am sure if I would have turned it back on the battery would say something like 70%, but I didn't do that this time). I left the phone off and plugged it into the computer to charge, the LED on the front come on amber for about 20 minutes then went to green. I turned the phone on and it says 100%. I don't see how the battery went from 0 to 100 in a matter of 20 minutes.
I did a lot of searching the last couple of days and phone issues from email to bad manufactured batteries (which I happen to have the brand someone suggested as a bad one), I also saw people pointing out do the fake server trick, yet I can't find a single time where anyone said what the trick is or how to do it. Not even in the WIKI where the trick was mentioned as a possible fix (or google for that matter, just the same words first posted in a thread here about it).
So, how do you do this server trick?
I plan to get a new battery after Christmas at any rate.

Check this thread:
http://forum.xda-developers.com/showthread.php?t=338421&highlight=fake+server+trick
I was having the same battery drain problem (less than 8 hrs on a full charge), I did the fake server and turned off auto day light saving time checking the clock settings, I now get 12 - 15 hrs on a full charge.
I'm running vp3G's 3.62.3 AT&T ROM with radio 1.54.07.00

Thanks! I was just finishing flashing a new ROM when I saw this. I did the fake server trick, but this rom doesn't have the Dya Light Savings time option where the instructions say it should be. Maybe that's all removed by this rom. TIme will tell.
Thanks again.

@ Firehawkns
hey buddy!!
I am using a JasJam for the last 2 months. i dont know if my reply is useful to you or not. As far as battery life is concerned am impressed with mine. Am using TNT's latest ROM and my radio version is 1.54.07.00. I use my phone all day with couple of calls that last about 2-3 min each. But every night I get calls from my gf, to whom I talk for 3 hours straight(mostly starting from 11pm to 2 am) and every day I put my phone to charge after I finish the call. So after finishing the call I still have 50% of battery. Moreover our call starts right after I leave work at 11pm so by the time I reach home which is around 11.30pm my phone connects to wifi too. So all the time am on the call as well as an active wifi connection.
So as per my experience the battery life is cool. So try TNT ROM!!!

Interestingly enough, now I've got my phone back from the warranty claim, it's only drawing 81mA with backlight on, no wifi or BT. Before sending it back, it was drawing ~180mA with backlight on, no wifi or BT.
This will just about double the battery life that I get in theory...
Install BatteryStatus on your device and see what it tells you.

That is a cool program.
First off I really hope it isn't the phone, for one it's my third one from Cingular since the first two died within 2 weeks (back in may), second it's got one big gash down the corner where it came out of the holder and hit the road one day. I think that would be just enough reason for them to not do anything with it.
Anyway, I am going to replace the battery because I can't figure out why the phone is doing things like saying it has 20% batt remaing, then I reboot and it goes to 70%. I am hoping this is a battery issue. So far the phone has been unplugged for a tad less then one hour, has not been used and the battery meter is on 90%.
Battery Status is a kick butt program and I plan to do some searching today to see if people have benchmarked there ratings/draw. I notice mine jumps randomly. With wifi, BT, all programs all terminated, backlight on the lowest it will go and radio has one bar 3g sometimes, two bars Edge sometimes, but didn't change during watching this list below, but the MA does this every 5 second refresh:
111--190----125-----109----250----210-----140----135----226---111---etc.
I am currently running a barebones fresh flash WM6 rom with nothing installed except Cingulars media net/ISP settings, radio is 1.47.10. Going to try 1.50 today I think.
I turned the radio off just now and the MA went down (expected) to 84 and is jumping between that and 104. The battery has dropped to 80% since I listed 90 above. The phone has now been unplugged for right at an hour. Also it might be interesting to note that the little battery percent/bar icon on the "Battery Status" software once in a while will display -1% like it is right now, the phones battery display says 80% and when I tap the battery icon on battery status it jumps to 80%.
Anyway, I am just listing points since this thread is here, I know I need to replace the battery first before any additional insight can be brought forward.
Thanks everyone.

Hmm.. On my Schaps 4.22full, radio 1.54.00 on good reception (on Finnish network) I get around 30 mA with GSM and 3G when idling(no wifi, no bluetooth, no beam, backlight around halfway). With airplane mode on I get around 28 mA. Tried with backlight dimmest and the drain was 15mA on GSM network.
Usually I put the 3G off so the battery would last longer.
The phone takes more power when searching the network so it would be a good idea trying to switch the phone part off at your office.

Well, looks like it was indeed the battery. Over the last week the phone would randomly shut off (about 4 times a day), the battery would be at 10% within 4 hours even if the phone hadn't been used, and while using the phone you could almost watch the battery go from 90% to 30% within a 5 minute talk time, reboot the phone and it would be back at 80%.
Put in the new battery yesterday after charging over night and the phone not only didn't shut off at any point, but I had 60% power remaining by the end of the day (with some data and voice use).
The old battery was a Dynapack from China, that I had read on here is prone to defects.
Thanks for the help everyone, wish I would have gotten a new batt sooner.

Battery Drain HD2?

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.

battery life improvement?

hye,
I just bought a HTC leo which I really love.
but there is just one thing I'm concerned about, the battery life.
with my htc touch pro 2 I was able to use my phone 2 days before recharging but I can't do that with the htc HD2
IS THERE A WAY TO IMPROVE BATTERIE LIFE?
thanx

use less of your phone the hd2 drains the battery and is very good at that.
Or you buy another spare battery to switch with the exausted one when you're on the go, they're pretty cheap on ebay with a mains charger

only tips, would be turn all you're updates off, i.e, email, weather, twitter, stocks etc. screen brightness, not much else really, i get a full day out of my battery with everything turned on and full screen brightness so im happy

switch off 3G whenever there is no need for it, best is using a tool like wmlonglive to do this automatically. Will improve the battery live especially if signal strength is changing often between 2G and 3G

don't use windows live push mail, it will improve your battery dramatically
edward

my HD2 just takes 30 minutes to drop from 100% to 70 % .....
from the bottom of my heart , i want to say , htc fone ..... not good as they say ,
crap
battery drinker
just after some games , it hots ...............
will change other fone ,

I do not have a problem with the phone. it lasts me 2-3 days depending on where i am. thus depending on phone signal strength.
Further when you want to improve battery life look at the treads about that. there are so many with so many suggestions. quite a few have improved my battery dramatically. search and try.

@Felix
Are you using a Stock-ROM?
When yes, then install atleast BsB-Tweaks and activate the powersaving settings ... (the most cooked roms already have this settings)
It will bring some extra minutes/hours
My HD2 (fully loaded over night) is at 77% after 8 hours and some phone calls (ca. 30 minutes), sms and some gaming and surfing
@enchanter
yes, it drains the battery pretty good and yes its becoming hot when you play games or stuff ... but what is the problem with it?
We all knew this - before we bought a HD2

ha ha , Pliskinius has the coolest answer
" what is the problem with it?
We all knew this - before we bought a HD2 "
u right man ,

@ pliskinius: I don't know what a stock rom is... it is the rom who was installed when I bought it.
my battery lasts one day and a bit, so there is not really a big problem, but when you go somewhere and forget your charger...
@enchanter: I'm really pleased with my htc, its my 6 or so and they become nicer and nicer..
Pliskinius said:
@Felix
Are you using a Stock-ROM?
When yes, then install atleast BsB-Tweaks and activate the powersaving settings ... (the most cooked roms already have this settings)
It will bring some extra minutes/hours
My HD2 (fully loaded over night) is at 77% after 8 hours and some phone calls (ca. 30 minutes), sms and some gaming and surfing
Click to expand...
Click to collapse

Try this fully drain the battery until the phone shuts down then take out the battery for two minutes,put the battery back in (DO NOT TURN ON THE PHONE) and charge until the green light comes on, take out the battery for another two minutes then put it back in and start up, this should improve battery life.
Also other factors affecting battery life are the Rom version,Radio and HSPL.

nice idea @nosh - will try it too ... maybe it brings some extra minutes
@Felix
you are using a stockrom (stockroms are the original ones, wich are installed when you pick up a new phone)
get this little tool http://forum.xda-developers.com/showthread.php?t=589305 and activate the energysaving feature (will improve the battery life)

@ nosh 10: I'll try that thanks, but I heard that fully draining your battery is not a good thing.
@ pliskinius: haha, yeah I know I don't know a lot about WM

Laurentius26 ROMs get an excellent battery life. I get 2 days without deactivating anything. And everything works perfectly and smoothly. I have the 2.10.50.26 radio ROM and the Laurentius26 GoldEdition V2.0 Spike™ WWE 21899. Can last up to 2.5 to 3 days by deactivating 3G. I download weather every 3 hours, tweets every 4 hours, e-mail every hour. Then I make phone calls about 15 minutes per day, sms 10 to 20, pictures about 10, surf with Opera about 30 minutes per day. Remember also to close all unused applications (for me the best task manager is the Touch X manager that is on Xperia X2, lets you choose between short click on the cross to minimize the app and long click on the cross to close the app).
Edit : It's now 15:50. Was 100 % yesterday evening by 22:00. Now it's 73 % left. But I only used my phone since that time to make a countdown for cooking at lunch time.

I'm currently in Japan, using phone on 3G, very little use, listen to some music daily (30 min) and play around an hour. I'm getting 3 days easily without a charge and could easiy stretch to 4 days.
Back in my country I disable 3G and use only 2g with auto updates on every 3 hours, no email push no twitter whatsoever, just weather updates. During the night the battery drains down by 15% and with normal usage I'd have to charge daily.
15% during the night with maybe 2 updates during the night and data connection disabling just after a few minutes shouldn't drain the battery by that much. Dunno, but I'm pointing my fingers towards 2g.
I'm no expert, actually I'm far from that, but could it be that 2g uses more power from the phone?
Without any usage at all, here in Japan, I hardly get a 10% battery drain in 24hrs compared to 15% during the night back in my country.

Maybe new comm chips Edge eats more than 3G as all the phones are now optimized for 3G, I wouldn't be surprised at all.
But one thing is sure : if you have bad 3G coverage or bad quality signal, it really drains your battery. Only way to avoid this : disable 3G and you phone will stop changing from Edge to 3G or HDPDA several times per minute.

I'm using WMLonglife, and I've set it to 3g only. Now I have no idea if here in Japan they have HSDPA or Edge or if the software is keeping the phone on 3g, but I haven't seen the phone changing from 3g even when the reception went down to 1 bar.
But i'm pretty impressed with the battery life at the moment. Pity i won't have the same battery life back home.

Lack of autonomy of my LG E900

I have a LG E900 Maximo7 and I'm a bit disappointed with the lack of autonomy of it.
On last days I had push mail off, wifi off, bluetooth off, location off, data connection off, .........., and with a few phone calls and sms, and 5 minutes of internet per day the battery is off at the end of the day.
I usually charge it at night (23:00pm) and at the end of afternoon of next day (arround 19:00 or 20:00pm) the battery is off or near by.
Is it normal? On your mobiles you have this kind of autonomy?
PS: My LG has the NoDo (OS version 7.0.7392.0)

No, my phone runs 2 days with internet and everything.

Hummm, can probably be something wrong with my mobile?

Well my experiences on battery life:
Heavy use (3G, surfing, gaming, mp3) = 8-12h (with 2-3h screen on)
Normal use (3G, some surfing) = 20-24h
No Use (3G off, Data connection off, just lying around with GSM) = 3+ days (I was really shocked by how long the battery lasted when I was on vacation)
I use a brand new battery. I dont know if the values are really correct as I never let the battery run down until it shuts off automatically.

The battery duration of this phone and of all WP7 phones in general is really impressive, try Android and you will understand!
Maybe u have just faulty battery, I can use my device for 2 days with all on without charging it (just turn off all radios with Airplane Mode during the night)

The same problem. I've even bought a new battery and it didn't help.
I have ROM from StarHub

the.rider1290 said:
The battery duration of this phone and of all WP7 phones in general is really impressive, try Android and you will understand
Click to expand...
Click to collapse
My wife has already bought SG2 (which has bigger screen) and I was impressed how long does it work on battery. She works as seller and supervisor, and use phone almost constantly aprox 8-10h per day (of course not only for emails and internet) and only charge phone every 2 days! When my LG was brand new, battery life was aprox. 24h on normal use, now with mango and 6 months old battery is aprox. 16-18h only.

I get phone from from charger at 9, use it only to listen to the music through bluetooth and read news for an hour or two maximum and at the late evening it can die.
Everything enabled (Wi-FI, Bluetooth, Location)
Using 3G
If I use it more intensive it definitely dies till evening. WTF?
We need to do something with it. Focuses and other WP7 works for 2 days.

It all comes down to usage really. Smartphones in general don't last long. If you think you are not using the set much and still it seem to drain battery way too fast start checking for stuff running that can eat power.
Usually things are running that one is unaware of that under certain circumstances drain your battery.
Check for background tasks and stuff like that.
/J

I started thread at MS Q&A
http://answers.microsoft.com/en-us/...-90c3-405e-8073-18e12bfab008?tm=1318370390863

[Q] Focus battery life after Mango 7720

How is the battery life compared to previous state? Better, worse or about the same? Please vote

It will be the same for the first 3 days and then gets better by a whole one more day (Don't know why).
For me the counter at the 1st 3 days said it will last for 1 day and 18 hours now it says that it will last for more tan 2 days and 18 hours and some times 3 days and 5 hours.
I tested it and it lasted for 2 days and 11 hours and there was still 17% of battery life (Lite usage , some 3g usage and listening for 30 minutes for music and around 2 to 3 calls of 15 minutes total).
Hope that helps

It does, thanks! Replies are welcome and there's a poll on top so please vote

I leave WiFi and data connection switched on all te time ... I used to get about 18 hours ... Still get Te same ... Comparing 7720 RTM with official mango update ...
Sent from my SGH-i917 using XDA Windows Phone 7 App

Battery life on my focus with mango and even before mango has been better than any other smartphone ive owned. I cant complain at all.

I was going to post a message on the battery too.
Poll is a great idea.
I just finished charging it after installing Mango. I will see how much it lasts.
I wanted it to drain out and recharge it so I can see how it is with Mango. It didn't gave up easily.
My initial impression is that battery is improved.
However, when talking about battery life, it's crucial to keep in mind what services the phone is using and what apps are installed.
For example, things like sound enabled for key presses, or having WiFi on or off, whether you play games, what apps you run, etc are important.
For my test, I want to see how long the battery lasts with a very basic usage. WiFi turned off, without running too much app or play games, giving\receiving few calls(I do not talk too much on the phone).
I heard for example that Samsung app Now drains out battery pretty fast.
Also, lack of signal in some areas, also means alot for power consumption.

6 days + 7 hours
Usage:
no WiFI enabled
no games played
max 2 hours of talks in total(I talked once like 1 hour)
How does it sound to you?
For me it looks fine although I am wondering how much would it last if I have Wifi enabled(for the same amount of talking duration).

6 days, What?
I only get 3 days and 15 hours if not using the mobile phone at all.
Can you please post a screen shot of the battery saver

I am in the 7th day actually now
The statistics displayed in battery saver are very wrong. I am not sure how it computes the remaining time.
When I posted yesterday, it showed 6 days since charging and only few hours remaining.
Now it says, 7 days and 1 hour since charging, remaining: "less then 1 hour", remaining battery life: 6%.
Last time I charged, I noticed that battery doesn't get to 0%, most probably it needs some energy to preserve data, so it will probably only keep me for few hours today.
I will post a photo soon, right now I don't have other device to take a photo of it.
Last time I fully charged the phone was when it was completely empty. Maybe it's important.
I can only hope the battery life won't degrade in the next year.

Ok, so now we have some votes so I can share my bits and why I started this thread.
Before 7720 I was on 7660 (Mango Beta1, not 7712)
The battery was certainly better than in NoDo. Actually, I'd say my phone had the best battery lifespan in 7660, than in all other versions.
7660:
Standby: 3+ days.
Night stand-by: 3% consumed (cca 7-8h)
On average use: 1 day and 20h
For me, average use means:
- Cellular data connection on during the day (I switch it off during the night)
- Some wi-fi to check new apps, say 20 mins daily
- About 1-2h playing.
- Minimal calling (several minutes).
7720:
Standby: almost 3 days
Night stand-by: 4%
On average use: 1 day and 10h
Stand-by means no data connections.
As an observation, stand-by time is almost similar. There is a noticeable drop in battery time once data connections come in play (cca 10-20% for me, compared to 7660). I am not going to revert to 7660 to re-test.
One more thing: after upgrading to Mango, I had AccuWeather app installed and running in background. I had to disable it because the battery life was getting under 24h (actually more like 20h). So if you have apps that run in the background, that might be one of the reasons why the battery life dropped for you. Once I disabled it from working on the background, I'm experiencing very similar times to 7660, but still the data connections consume just a bit more.

How are people getting 3+ days!? When at 100%, my Focus usually says like 12-13 hours. I have a Gmail email account set to push, and a Hotmail account set to receive email every hour. I have Facebook, Twitter and LinkedIn linked on my phone. I have Messenger and Facebook Chat set to off. I always have wifi/bluetooth off, unless I need it for a few minutes.
I am thinking I should flash to 7004 again and update to Mango from the beginning.
I walshed my phone for Nodo, then did the fix, then used the windowsphonehacker method for Mango and got the "Samsung Update" when Mango was released.
Thinking maybe my install is just a little off due to the route I took to get here.
Anyone else have battery life as bad as I do? If I use my phone non-stop for like an hour (people hub, web browsing, facebook app, etc...) I can burn through a ton of battery.

EnderPsp said:
How is the battery life compared to previous state? Better, worse or about the same? Please vote
Click to expand...
Click to collapse
Make sure to do a reset immediately after the update to the *official* Mango (not the tricked one).
The BL seems to be much better and is a small cost for the rewards. You will erase your phone, but it's worth it. The BL seems to be much better than NoDo.

To increase battery life when you have data connections on:
- keep the brightness to low
- keep the ringer on vibrate when you can
- disable background apps
- don't keep applications opened in the background
These save me a good % of battery on a daily basis.
Also, unless really necessary, disable data connections during the night.
@rkremers: with the above settings and no data connection I get 3-4% loss evey 8h or so. If you calculate, that's about 12% per day. Which gives about 9 days for standby, as someone else on the forum was saying, which I incline to believe. This weekend I will test this too. I won't touch the phone at all until Sunday evening. So I'll have the power consumption on standby for 2 days.

dang enderpsp... Now I'm for sure gonna flash to 7004 and start from scratch, to see if it gets better. Probably do it Sunday sometime due to busy Friday night/Saturday.
Thanks for weighing in...

rkremers said:
dang enderpsp... Now I'm for sure gonna flash to 7004 and start from scratch, to see if it gets better. Probably do it Sunday sometime due to busy Friday night/Saturday.
Thanks for weighing in...
Click to expand...
Click to collapse
You're welcome. Keep in mind that a "tired" battery can also be responsible. I see lots of wrong advice given across the forum.
How to Prolong Lithium-based Batteries is a long read, but in the long run, you'll benefit from it, as a lot of devices use nowadays these types of batteries, including cars!
LE: As a refresher for me, I searched again and found this. While it's not as detailed as the one above, it contains good advice.

so, I flashed to 7004, then let Zune upgrade to Mango... I'm at 95% battery now, and it says 1 day 5 hours... 1 day 10 hours with battery saver on.
Not sure if it will actually last that long, but before I did this, it would say about 13 hours on a full charge with battery saver on... so clearly my phone did not like being walshed, unwalshed, hacked to mango, etc... Guess in the future I'll install leaked versions of WP7, but go back to zero when they officially release.

I finished the weekend standby test (2 days). This battery is 9 months old.
Setup:
- Battery saver off
- No data connections/wifi
- Sound on
- Low brightness
- No alarms
- No background apps
- No touching the phone
After 24h: 91%
After 48h: 79%
Had a phone call (didn't answer) and one alert (didn't dismiss), in the second day. After 24h I just turned on to check battery status (<20s).
The end result speaks for itself, approx 10% battery per day. So, it can give 9+ days on standby.
Next weekend I'll do the same test with battery saver on and update here.

I just got a Samsung Focus and the battery seems to lose power at the rate of 2% an hour. Is this normal? data connection is not active, no games, no youtube videos just a quick e-mail check and 2-3 min call.
Is this likely to improve after a few more battery charge cycles? I have followed all instructions like disabling location services and background apps.

Tornado54 said:
I just got a Samsung Focus and the battery seems to lose power at the rate of 2% an hour. Is this normal? data connection is not active, no games, no youtube videos just a quick e-mail check and 2-3 min call.
Is this likely to improve after a few more battery charge cycles? I have followed all instructions like disabling location services and background apps.
Click to expand...
Click to collapse
How is the antenna signal? What type of connection?

Antenna signal is pretty good 4-5 bars. Just regular connection not 3g. E-mail auto syncs have been set to manual.
Battery seems to be original Samsung.