Database Users

Calibrate your battery

We all want the maximum out of our battery and the corresponding indication. Found this thread in Desire forum on calibration of the battery and can be usefull for Wildfire aswell....http://forum.xda-developers.com/showthread.php?t=755903
Just did the full cycle myself.....will report back results.

Frank C said:
We all want the maximum out of our battery and the corresponding indication. Found this thread in Desire forum on calibration of the battery and can be usefull for Wildfire aswell....http://forum.xda-developers.com/showthread.php?t=755903
Just did the full cycle myself.....will report back results.
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Click to collapse
i'm doing it right now, it cant do any harm. Thanks for the post

Any updates???
Sent from my HTC Wildfire using XDA App

I cant see any changes
Sent from my HTC Wildfire using XDA App

The wildfire has a really good battery already
No need to calibrate imo. Can last 2+ days for me when I don't abuse the wifi and games.

First feedback.....no noticable difference seen.....What do seem to help is to charge you phone longer even after green light indicates that battery is full.....For me than takes longer to go from 100 to 99.

kevin2516 said:
The wildfire has a really good battery already
No need to calibrate imo. Can last 2+ days for me when I don't abuse the wifi and games.
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How do you do this? I'm doing everything, I underclock my phone down to 160-245 Mhz, I turn on my wifi only when I have to, I keep my phone in airplane mode permanently, I constantly run on display turned down to max. And yet I've yet got to witness my phone going over 18h uptime. Do you run a custom ROM or something?

xc1024 said:
How do you do this? I'm doing everything, I underclock my phone down to 160-245 Mhz, I turn on my wifi only when I have to, I keep my phone in airplane mode permanently, I constantly run on display turned down to max. And yet I've yet got to witness my phone going over 18h uptime. Do you run a custom ROM or something?
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I find the same thing, and have even been thinking of returning it because it can't last longer than 24hrs. I have even restored to stock and hard reset, so no apps added or anything, BT/WIFI off and the battery life still sucks.

xc1024 said:
How do you do this? I'm doing everything, I underclock my phone down to 160-245 Mhz, I turn on my wifi only when I have to, I keep my phone in airplane mode permanently, I constantly run on display turned down to max. And yet I've yet got to witness my phone going over 18h uptime. Do you run a custom ROM or something?
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Click to collapse
Yes I've tried openfire rom and wildpuzzle rom. Battery lasts as I have stated. I also use setcpu to set up profiles when phone screen is off to help it a little

Would also like to add that on the stock rom, the battery lasts long as well but custom rom is better

My phone is a stock. But as you can see, the battery life leaves a lot of room for improvement. How can I increase ir?

Not sure, but after rooting my battery life improved signigficantly, and it also charges fast than before... htc wildifire.

ok so i charged my phone to 100% and left it on my table untouched last night when i got to sleep, left it in my pocket today at uni without using wifi/games, just to check the time, is currently still at 99% with up time of 14hrs so far.
and if you want to maximise your battery life with stock rom, lower brightness, disable auto sync of accounts, disable 3g if you're not using it, try juice defender, i think that might help you guys.

kevin2516 said:
ok so i charged my phone to 100% and left it on my table untouched last night when i got to sleep, left it in my pocket today at uni without using wifi/games, just to check the time, is currently still at 99% with up time of 14hrs so far.
and if you want to maximise your battery life with stock rom, lower brightness, disable auto sync of accounts, disable 3g if you're not using it, try juice defender, i think that might help you guys.
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Click to collapse
i tried installing juice defender,
though its showing in setting> applications>manage apps
i am unable in find its icon in apps list. is that normal with that application?

realxception said:
i tried installing juice defender,
though its showing in setting> applications>manage apps
i am unable in find its icon in apps list. is that normal with that application?
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Click to collapse
Hmm strange, I have installed it and icon shows normally in application list.

I went through the calibration process and my battery life has increased significantly. Currently I have 5 hours and 12 minutes of uptime with occasional phone calls and some wifi usage - battery is at 99%.

I find that battery life is all about how strong ur signal is.
At home i get a full 3g signal, battery lasts about 30 hours with my syncs on all day, couple of hours of wifi and maybe 30 mins of gaming and about 30mins of phone calls.
When i'm at work and the signal fluctuates i get about 20 hours average.
When i was in a restaurant for a party recently from 7pm to midnight, there was hardly any signal and i used about 60% of the battery in 5 hours!
At the end of the day if the battery lasts for 18hours with all my stuff turned on then i won't complain as the phone does everything you need except make the tea!
I mean what's the point of turning all the smartphone stuff off? Might as well just go and buy a Nokia.

rommi0 said:
I went through the calibration process and my battery life has increased significantly. Currently I have 5 hours and 12 minutes of uptime with occasional phone calls and some wifi usage - battery is at 99%.
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Update:
Uptime now is 24 hours and 45 minutes, with a bunch of phone calls, messages and occasional wifi and data use - battery is at 63%

I'm familiar with the calibration thing n it worked well on my hero but since rooting with unrevoked u get no green light when phone is off n also need to pull battery to turn it on again.. so I don't c how I can with this irritating bug! Any solutions?
With data connection off I get bout 48hrs with just calls n txt. Otherwise with light use I get 30 ish tops
Sent from my HTC Wildfire using XDA App

bassmonkey said:
I'm familiar with the calibration thing n it worked well on my hero but since rooting with unrevoked u get no green light when phone is off n also need to pull battery to turn it on again.. so I don't c how I can with this irritating bug! Any solutions?
With data connection off I get bout 48hrs with just calls n txt. Otherwise with light use I get 30 ish tops
Sent from my HTC Wildfire using XDA App
Click to expand...
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I faced the same problem, since rooting my wildfire. Can someone answer. Tks

i have to say, the juice defender rocks, totally solve my battery problem.

actually, i still dont understand how it works. days before, i keep.complaining the bad battery, it drops 15% after one night. i turned my wifi and 3g off, it didnt work. i opened a thread to complain about this, some friend advise me to use the juice defender which really help a lot. now it use only 3 to 4% for 8 hours standby, which is much much better than before. if u are also troubled by ur battery, give it a shot. it's free from the market.
my set: all enable except for the location.
Sent from my GT-I9100 using XDA App

What does it shut off? Seems like it has to be something important to work. I want my email in real-time; does it mess with that?

I installed this only a few hours ago. yet to see any significant change. By the looks of it, having it on the default setting will turn data off when your screen is off, but I still get e-mail notifications in my 1hr check intervals even when my phone is sleeping.

AmesCell said:
What does it shut off? Seems like it has to be something important to work. I want my email in real-time; does it mess with that?
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Click to collapse
The main feature is that it disables data most of the time (2g, 3G or wifi) and only enables it at preset intervals, like 2 minutes every 30 minutes to get your e-mails and stuff.
So basically what you lose is push / real time notifications.
It can also manage the screen brightness and CPU clock more precisely, put the phone in plane mode while you're sleeping (for example you can tell Juice defender to go in plane mode from 23:30 to 6:30 every day, except if you're still using your phone after 23:30 or start using it before 6:30), or activate wifi only when you're in a specific location.

Does anybody have issues receiving MMS picture messages with JD or any other power saving app running?
I had 'Green Power' running yesterday. A few people sent me pics which came through as blank. Stopped the app and asked them to resend and it worked.
Thanks
NC

I tried this app too, but the battery draining when WiFi was enabled was higher than without JuiceDefender. Still trying to get through all the JD settings...

I dont think Juice Defender would work well for me as I use Whats App a lot...

I use it on my ego. One of the best apps i bought
from my phone duh

Is anyone else able to toggle the 2G/3G setting? I've paid for the Ultimate Pack (wish i hadn't now as the Plus pack is supposed to do this) but apparently JD doesn't like my ROM, the Log says: 'ROM is not compatible with AOSP helper (3G control is unavailable) - get CyanogenMod
Out of interest i was on a UK O2 branded phone so i flashed XEU KW7, then rooted, then put back the original KE7 kernel. I wonder if that's the problem?

I was messing with Juice defender, but I found the app called Battery Booster to be much, much more effective. I went from a 12 hour battery, to having between 24 and 28 hours the last 3 charges. Simply amazing, more than doubled my battery life. Using perhaps 1-2% per hour when sleeping.

1-2% per hour when sleeping is not that good, i get 3% in 8 hours when sleeping.
But juice defender does what should be built into the gingerbread and that is, it puts your wifi and 3g to sleep when your screen is off or when you are not using it.
I personaly dont use push notifications so loosing that doesnt bother me, what bothers me is when the phone is in sleep it drains because i have wifi on.
I dont want to be turning wifi on and off all the time, i want it to be automatic, when i go on the web or open an app that uses data it should turn on my wifi.
SO YES JUICE DEFENDER DOES ROCK.

Well, before battery booster it used 5 - 8% per hour sleeping, so I'm pretty darn happy with the results I'm getting now. It used to last me about 12 hours. Now it lasts usually over 24 hours, which is great. That is included with 3-4 hours of screen-on time. Android OS also dropped by 20% after getting battery booster.

NIK516 said:
1-2% per hour when sleeping is not that good, i get 3% in 8 hours when sleeping.
But juice defender does what should be built into the gingerbread and that is, it puts your wifi and 3g to sleep when your screen is off or when you are not using it.
I personaly dont use push notifications so loosing that doesnt bother me, what bothers me is when the phone is in sleep it drains because i have wifi on.
I dont want to be turning wifi on and off all the time, i want it to be automatic, when i go on the web or open an app that uses data it should turn on my wifi.
SO YES JUICE DEFENDER DOES ROCK.
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Click to collapse
You do know there's a setting for turning of WiFi when screen is off, right?
Settings - WiFi - Advanced - Wifi Sleep Policy

rengift said:
actually, i still dont understand how it works. days before, i keep.complaining the bad battery, it drops 15% after one night. i turned my wifi and 3g off, it didnt work. i opened a thread to complain about this, some friend advise me to use the juice defender which really help a lot. now it use only 3 to 4% for 8 hours standby, which is much much better than before. if u are also troubled by ur battery, give it a shot. it's free from the market.
my set: all enable except for the location.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
If u using juice defender ultimate will boost battery more

h
xiga said:
Out of interest i was on a UK O2 branded phone so i flashed XEU KW7, then rooted, then put back the original KE7 kernel. I wonder if that's the problem?
Unlikely but a factory reset often cures a problem .
jje
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Click to collapse

BoogWeed said:
I dont think Juice Defender would work well for me as I use Whats App a lot...
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no problem at all with push services.
the way juice def works is simple: it geolocalizes ur wifi router, and moving out the area of wifi, jd switches off wifi hardware until u come back home\office. it does the same with other hardware modules not in use.
wot doesnt work: ebuddy or other istant massaging apps while screen is off (I think it's unuseful to use jd with IM-draining batt-apps)

NIK516 said:
1-2% per hour when sleeping is not that good, i get 3% in 8 hours when sleeping.
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Hmm, am I doing something wrong leaving my phone charging overnight? Will that kill my battery?
When do you guys charge the phone if not overnight?

Ayers976 said:
Hmm, am I doing something wrong leaving my phone charging overnight? Will that kill my battery?
When do you guys charge the phone if not overnight?
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Click to collapse
24 hours in a day so i charge when it needs a charge 20% left or when i know i want extended use .
jje

I just installed Battery Booster. Juice Defender didn't do much for me but annoy me.
Now see how this app will hold itself.

Very similar to my finding with ATK (link below). Something happened in Gingerbread with how the OS handles cached apps... to the point where some cached apps stay active and keep your device awake!
http://forum.xda-developers.com/showpost.php?p=14108166&postcount=1

[Q] mikg 1.03 battery issues

This is by far my favorite Rom yet but I'm having battery issues that I haven't had before. I unplugged my phone last night at 100% and when i woke up 5 hours later my battery was at 68% normally it would only drop about 10% or less in 5 hours. any ideas? I have all new radios and wimax and such.

Is your phone sleeping?
Sent from my PC36100 using XDA App

Once we get a new custom kernel, it should remedy the battery issues on that ROM.
We just have to wait for HTC to release the source for the latest kernel.

OK stupid question how do I know if my phone is sleeping ?

At 7am I reset battery stats and put in a 100% battery (charged on an external charger)
Now (11:15) I am at 69% I expect this to get better once the batt stats are done.
I have new radios and the kernel for the ROM.

stock battery. i dont think my phone is sleeping.

If you have mobile data on, your battery will drain a lot faster, especially while we're all stuck with the stock kernel

No battery problems here. Altho it is the stock Kernel, i can easily use my phone for a full day with several calls, a bit of gaming and youtube (3G) while in the pooper and have 50-60% remaining in the evening
Try to reduce app sync frequency (you don't need that when in bed really..), LED notifications
No juice defender, or taskiller, or extended battery- just using setCPU with "onDemand" governor

That's about where mine is, too. I'm used to my SBC setup though, where I'd be at 85% by the end of the day.

You should not be losing that much battery over night. I generally only lose 2-3%. Have you checked your battery usage? Post a screen shot of it.
It looks like this
http://smartphoneblogging.com/wp-co...ngerbread_battery_consumption_app_graphic.png
You can see when your phone is awake vs screen off. And if you click on the apps in the list, it will tell you how long that app kept the phone awake,

So when can we expect a custom kernel. i use set cpu with ondemand also no juice defender or app killers here either.

gfullwr70 said:
So when can we expect a custom kernel. i use set cpu with ondemand also no juice defender or app killers here either.
Click to expand...
Click to collapse
Probably at the end of the month. :/
If watching paint dry is your thing, you can look back here
http://developer.htc.com/

my phone signal and wifi are lit up all way across i can see my phone wakes in tiny increments and then sleeps

gfullwr70 said:
my phone signal and wifi are lit up all way across i can see my phone wakes in tiny increments and then sleeps
Click to expand...
Click to collapse
So something is waking up your device then. You don't have the wake lock issue. Do you use google latitude? That is a huge battery hog

yes i do use latitude all my sync like facebook and weather are set to 1 hour but have always been and never had this problem before.

gfullwr70 said:
yes i do use latitude all my sync like facebook and weather are set to 1 hour but have always been and never had this problem before.
Click to expand...
Click to collapse
Try it w/o latitude on. I only drop 1-2 maybe 3% through the night once i turned those off. I have my facebook contacts set to sync once a day (don't really need more than that unless you add friends a lot or they update their picture frequently)
Weather I have set to 3 hours, but there is an option to update on device wake..so that isn't an issue either.
Give it a try and see if it helps.
Also if you haven't calibrated your battery, charge your phone to 100%, boot to recovery and wipe battery stats, drain battery til phone shuts off and then charge phone back to 100%. I can usually get about 24 hours of moderate use out of my phone.

ok will try those. i did battery wipe just yesterday

just click the link in my signature for some really good battery tips

OK guys so nothing I done helped my battery life while sleeping so I wiped wiped and wiped again and reflashed twice set everything back up and now my phone sleeps again. These roms can be funny like that sometimes I guess. Any thoughts on that?
Sent from my PC36100 using XDA Premium App

Roms, especially ones that are ports, can be weird like that sometimes. If a couple of wipes and a re-flash did the trick then I'd say that's great.
If not, then it's just bad luck I guess. Hopefully the kernel source will come out in the next few weeks and we'll be able to get kernels that can squeeze out better battery life.

Battery drain when powered off w/o dock

I've noticed that when I attempt to power on my Transformer a couple days after powering down that the battery is completely drained as if the device was never shut down. The only way to power on is by plugging in to an outlet. I was under the impression the battery would last longer than a few days when powered down.

It definitley should, if I just put my tablet in sleep and leave it all day, it loses about 1% per day, so turned off I'd expect the same or better.

darkonex said:
It definitley should, if I just put my tablet in sleep and leave it all day, it loses about 1% per day, so turned off I'd expect the same or better.
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Wow, mine loses about 10-15% overnight. The same as the op... The batch number is B50*****

Mine too drains battery when in sleep mode. Also B5 build...hope an OTA update will fix it soon and that it is not a hardware problem.

Same here and I'm stock w/out root...
Sent from my Transformer TF101 using Tapatalk

Mine was in standby with airplane mode on (wifi off) - B3OK
100% battery was down to 64% by the morning. In 10 hours lost 36% battery
With all the talk about keyboard dock drain - I think this is more a important issue.

I have a B50 tablet, and mine only looses 1-2% per day if left in standby. This is in Airplane mode. Dunno what you guys are doing to loose half your charge over 24 hours.

Probably background apps. Some apps force load themselves (Like Thumbs keyboard and TapaTalk which wants to prevent standby on installation according to someone else on this forum).

I am also experiencing this issue. When I put the tablet on standby the battery continues to drain. When I when to sleep last night the battery was at 30%. When I turned it on this morning, it showed 4%!
This is unacceptable. The battery saving option is turned on. Is ASUS aware of this issue?

if you look at the battery info chart, does it show it becoming awake shortly after using it and staying awake for quite some time with the screen off?
Sent from my Transformer TF101 using XDA Premium App

B50 here. 0% battery drain. woke up and used it to check XDA for a little bit and went down to 98% but that's to be expected since most tablet/phones don't like to stay at 100% battery level to preserve it longer.
airplane mode while sleeping.
http://i128.photobucket.com/albums/p163/gbd270/P20110723082933.png
it would also be helpful for you guys to say what ROM / kernel you're using.. and if you're stock, say stock. hence why people on XDA have this stuff on their signatures

I am on stock. Could it be because I have some apps running that are causing this battery drain? Or is it the microSD card?
Sent from my Transformer TF101 using XDA Premium App

sazfar13 said:
I am on stock. Could it be because I have some apps running that are causing this battery drain? Or is it the microSD card?
Sent from my Transformer TF101 using XDA Premium App
Click to expand...
Click to collapse
microSD wouldn't drain your battery. I would say check your battery usage but that's disabled on stock.
- Check your Google Accounts in Accounts & Sync. Is Picasa Web Gallery checked for syncing? I heard there was a bug about that and it consistently drained the battery even when you're not on Wi Fi.
- Any syncing apps, make the interval longer or make it a manual refresh if it's not important.
- There is a bug where the tablet may be trying to interact with Mobile Data. I'm not sure why but people on other Honeycomb tablets have reported the same thing. You can bypass this by activating Airplane mode. You can still use WiFi when it's in Airplane mode.
- I personally don't use any SetCPU profiles. They tend to do more harm than good. Just my opinion, it's up to you but if something's going wrong with your battery. Try disabling them and see if you notice a difference or not.
- My WiFi sleep policy is set to "when screen turns off." Even though I select this, my tablet still gives my notifications on emails and stuff. Seems to be working well for me.
- Don't use any task killers.
- If you use a kernel that supports undervolting. Play with the settings and undervolt. My kernel that I use doesn't support it but I still get good amounts of battery life.
- I don't overclock. This could drain your battery as well (unsure, but it probably does to a certain extent). At 1.0GHz my Transformer is fast and responsive so I don't OC anyway. I only OC for benchmarking for fun.
Many people have said to disable GPS. But in fact, GPS is on demand! Even though when it's enabled, GPS is only used when a app or the browser requests your location from GPS. I personally have it on, but it's up to you really.
There. I just compiled some battery tips. Hope they help.
A true way to find out if something is severely wrong is to put your tablet into Airplane mode while sleeping. When you wake up, check how much % you lost. If it's over 5-7%, I'd probably say something is wrong with your setup.

^OK thanks . I will give it a try when it is fully charged.

sazfar13 said:
^OK thanks . I will give it a try when it is fully charged.
Click to expand...
Click to collapse
At least check if Picasa was syncing. If it was then that could of been the source of it. Let me know?

zephiK said:
At least check if Picasa was syncing. If it was then that could of been the source of it. Let me know?
Click to expand...
Click to collapse
OK I have unchecked the following syncs:
- picasa
- calendar
- Skpe sync
I have also turned on airplane mode. Lets see what happens.

So how do you tell ???
How can you tell which model ( B30, B40, B50, B60 ) you have ????

marcelol said:
How can you tell which model ( B30, B40, B50, B60 ) you have ????
Click to expand...
Click to collapse
It's the serial number. Check the sticker on the dock for S/N or on the box that it came in.

After making the changes I described in my last post, I am now losing about 2% every 4 hrs. That is 0.5% every hour on standby. Much better than before but I believe others here have a much lower battery discharge rate.
I will continue to monitor the battery discharge rate under different scenarios.
Sent from my Transformer TF101 using XDA Premium App

Same problem, if left overnight looses around 30-40% of charge and looses 3-4% as soon as I disconnect charger. All sync is of, email check is manual. Juice defender is installed and on. So I have checked its logs and it says that almost every 10 minutes tablet uses WiFi connection. Went to Settings of WiFi connection and unchecked Notice about open Wifi spots and checked Always on when cgarger plugged in instead of "Always on". Will see how it works now.

Battery not lasting more than 7 hrs after jellybean update

My p3100 battery is not lasting more than 7hrs after jellybean update..earlier it use to last more than 20 hrs...i dunno wat is happening...yesterday the battery was fully drained so i plugged in the charger but within an hour it showed battery full so i unplugged it and after 1hr of use it again showed low battery so i switched it off n turned it on then after that it took around 4hrs to get charged...n from then the battery is not lasting more than 7to max 8 hrs that too with minimal useage..help me guyzz wat to do ???
Sent from my GT-P3100 using xda app-developers app

kyahaiyaar said:
My p3100 battery is not lasting more than 7hrs after jellybean update..earlier it use to last more than 20 hrs...i dunno wat is happening...yesterday the battery was fully drained so i plugged in the charger but within an hour it showed battery full so i unplugged it and after 1hr of use it again showed low battery so i switched it off n turned it on then after that it took around 4hrs to get charged...n from then the battery is not lasting more than 7to max 8 hrs that too with minimal useage..help me guyzz wat to do ???
Sent from my GT-P3100 using xda app-developers app
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I have the same impression....did not count times but I think the battery lasts less...
I'm on taiwan 4.1.1 stock

same problem here, i am stock OTA 4.1.1 (india)

download CPU spy to check and make sure it's still going into Deep Sleep when the screen is off.
Also if your rooted use No Frills CPU (or any other CPU tuner type app) and change the governor from interactive to hotplug, hotplug disables one of the CPU cores when not needed thereby saving battery.

Even for me as well and so many issues so many things missing in the update like
1.Screen capture app is missing.
2.Lock screen is stock in portrait not turning to landscape unable to solve it.
3.Battery is draining so fastly as compared to before.
4.All the apps not responding instantly it is taking time to respond and even i need to reopen it as it is not opening for long time
5.Main thing is Notification bar is too small compared to before and unable to see signal info properly
6.And the home screen seems more crispy i didn't like it at all
and finally before it looks like a tablet now it look like a phone in considering with the notification bar and typical buttons like home screen......

daniel644 said:
download CPU spy to check and make sure it's still going into Deep Sleep when the screen is off.
Also if your rooted use No Frills CPU (or any other CPU tuner type app) and change the governor from interactive to hotplug, hotplug disables one of the CPU cores when not needed thereby saving battery.
Click to expand...
Click to collapse
Daniel, it is going into deep sleep.. It's driving me crazy the way it still uses up battery..Also like said by others,notification bar is too small..Can not read anything on it (battery percentage, wi-fi signal, notifications..)..Any other ideas?

I saw massive drain after I installed the latest Samsung push service update. I unistalled the update and everything back to normal.
Sent from my GT-P3100