I previously made a thread regarding low battery life.
After a week of use and more testing, here's what I gathered.
(Note: I have GPS, Bluetooth, Wifi always disabled, brightness lowest)
My phone will completely drain out in 6-7 hours.
I found the culprit: Cell Standby
1.) Cell Standby always uses the most battery, often 60%+.
2.) Phone Idle often follows with 30%+.
So, to verify my theory that the screen isn't the issue, I turned on airplane mode.
I proceeded to watch a 1 hour comedy, and battery life dropped from 60% to 50%.
This is lower battery usage than if it were sleeping with cellphone on.
I then noticed that my signal hasn't been good (provider sucks, no choice, all of em here sucks).
So, I placed my phone on, but asleep inside a locker for 2 hours (no signal).
When I took it out, it was very warm at 40+ C and battery life dropped about 20-30% per hour.
I've tried turning 3G off, turning always-connected off or downgrading 2g.
The result has always been the same. It still sucks bigtime.
It seems like Nexus One also has this problem, anyone notice similar problems?
I've googled and been told that this is "normal", because the phone increases power to secure a signal.
However, I've clearly owned phones and placed them in signal-less lockers prior to this, and trust me when I say most of them drop 5% per hour max.
20-30% per hour is horrible, and clearly the phone is overpowering its components.
There are some certain Radios you can flash to improve how your phone uses power to pick up a signal, Requires root access tho.
Can you please point me to those radios? I've already tried updating my radio to latest.
My phone is already rooted.
My battery is a joke and I have tried many different things. I always have to charge it by around 3pm everyday during week as It will almost die on way home.
I take it of charge at 7.30am by 9.30 it could be down to 86% and then it judt continues to drop by 3 It can be between 60 and 50% if lucky, by time i'm tenmins from my house I get 15% and warnings.
I use basically for txt, some net usage and sometimes playing a game 10 - 20 mins tops and or read ten mins of books.
I have all updates off only manual and screen down low etc - doing my head in!
G2 (HERO!)
choccy31 said:
My battery is a joke and I have tried many different things. I always have to charge it by around 3pm everyday during week as It will almost die on way home.
I take it of charge at 7.30am by 9.30 it could be down to 86% and then it judt continues to drop by 3 It can be between 60 and 50% if lucky, by time i'm tenmins from my house I get 15% and warnings.
I use basically for txt, some net usage and sometimes playing a game 10 - 20 mins tops and or read ten mins of books.
I have all updates off only manual and screen down low etc - doing my head in!
G2 (HERO!)
Click to expand...
Click to collapse
Im facing the same level of battery drain, but i have 3G turned on constantly with updates from facebook every hour twitter updates every 15 mins and mail app every 30 mins. And i mostly use my phone for music and SMS with occasional browsing.
aziz831 said:
Im facing the same level of battery drain, but i have 3G turned on constantly with updates from facebook every hour twitter updates every 15 mins and mail app every 30 mins. And i mostly use my phone for music and SMS with occasional browsing.
Click to expand...
Click to collapse
Strange, I always have 3g on, and still play a lot with my hero (games and such)
Still it survives about 36 hours on 1 battery load. Without 3g it holds out for 72 hours.
Post #1 on the thread below seems to have a working solution (re-interpreted below)
It seems to be something to do with the battery stats and charging via usb through PC instead of via the mains.
You have to clear your battery data when your phone has really really low battery (this is probably the MOST IMPORTANT step) (you can do this through recovery mode in amonRa). Once the battery data is clear, switch back on (before plugging in) and drain the battery so that your phone switches off by itself (playing music loud and switching wifi, data connect etc, etc is suggested in the thread).
Once battery has died, plug in your phone WHILE it is STILL OFF, then when the battery shows green (will probably take longer to charge because this time it is getting a full charge), UNPLUG BEFORE you switch it on. and you should notice the significant difference. - Oh yeah make sure you switch off all those data connections and wifi and all those other things that you used to drain the battery - unless you use some of them of course
EXTRA TIP given on the thread: TIP!! Remeber when changing and flashing new roms to unplug the phone from charge *(i.e. unplug from your PC) (edit Bad4ss) * after you boot!
TO answer LennyUK's Q below ( and so that the next page doesn't start to quickly before this suggestion is read ) I think why it is suggested for the first boot after this process to be done while off is because it is already off because of the drain AND because it will get a clean full charge up for the first time after a battery data wipe. Because while it is on it will be depleting the battery even if it is in a small way - after that you can do it whichever way you want *nudge-nudge-wink-wink-say-no-more*
Source:
http://forum.xda-developers.com/showthread.php?t=647460
I don't see why the same thing cannot be achieved by charging with the phone on, just as long as you don't change between phone being on or off during the charge i.e. if you start charging with the phone on leave it like that the whole time and visa versa
Bad4ss said:
Post #1 on the thread below seems to have a working solution (re-interpreted below)
It seems to be something to do with the battery stats and charging via usb through PC instead of via the mains.
You have to clear your battery data when your phone has really really low battery (this is probably the MOST IMPORTANT step) (you can do this through recovery mode in amonRa). Once the battery data is clear, switch back on (before plugging in) and drain the battery so that your phone switches off by itself (playing music loud and switching wifi, data connect etc, etc is suggested in the thread).
Once battery has died, plug in your phone WHILE it is STILL OFF, then when the battery shows green (will probably take longer to charge because this time it is getting a full charge), UNPLUG BEFORE you switch it on. and you should notice the significant difference. - Oh yeah make sure you switch off all those data connections and wifi and all those other things that you used to drain the battery - unless you use some of them of course
EXTRA TIP given on the thread: TIP!! Remeber when changing and flashing new roms to unplug the phone from charge *(i.e. unplug from your PC) (edit Bad4ss) * after you boot!
TO answer LennyUK's Q below ( and so that the next page doesn't start to quickly before this suggestion is read ) I think why it is suggested for the first boot after this process to be done while off is because it is already off because of the drain AND because it will get a clean full charge up for the first time after a battery data wipe. Because while it is on it will be depleting the battery even if it is in a small way - after that you can do it whichever way you want *nudge-nudge-wink-wink-say-no-more*
Source:
http://forum.xda-developers.com/showthread.php?t=647460
Click to expand...
Click to collapse
Can you do this on non rooted phone? How do I get into recovery mode?
I think the analysis is flawed. I also think the stats information doesn't tell you everything. For example, yesterday I had 60% cell standby, 20% WiFi, 20% phone idle. Consumption was 45% in 24 hours.
Previous to yesterday, I had high battery consumption. So yesterday was a breakthrough but YMMV. I removed the PCSCII and the Mail app (I don't sync with Exchange and I don't sync with a PC as such - I don't run Windows). I also disabled auto task killer. I rebooted without being connected via USB to power or to PC. Suddenly power consumption became similar to Modaco ROMs.
Last night, I also disabled the setCPU application and rebooted. 6% battery consumption in 9 hours. 34% cell standby, 33% WiFi, 33% phone idle. Consumption was 45% in 24 hours.
how have you improved battery usage, ive tried resetting battery stats, draining battery, fully charging, using kimera 1.5 and with no wifi no bluetooth, not using phone in few hours it was down to 63% and in 10mins had dropped to 59%
i had similar battery problems but today i changed radio versions into a different one, now i get almost full signal all the time and battery usage is geatly increased (went down 2% in 4 hours as compared to 10%/hour)
so i suggest finding a radio that give you good reception
immya said:
i had similar battery problems but today i changed radio versions into a different one, now i get almost full signal all the time and battery usage is geatly increased (went down 2% in 4 hours as compared to 10%/hour)
so i suggest finding a radio that give you good reception
Click to expand...
Click to collapse
Which one did you use?
im on tmobile uk, changes radio from
63.18.55.06JU_6.35.09.26 to
63.18.55.06JU_6.35.08.29
made alot of diference
you should ty out diferent radios and find one that gives the best reception, it will be different for different providers and countries
also i did this...
http://forum.xda-developers.com/showthread.php?t=647460
i unplugged my phone from the charger after doing this at 6am, it had 100% charge
its now10:45 pm, i have 44%charge left...its crazy
before i used to run out of juice around 10 hours after i charged my phone, its not been almost 17 hous and i got 45% left
i seriously suggest doing this
immya said:
im on tmobile uk, changes radio from
63.18.55.06JU_6.35.09.26 to
63.18.55.06JU_6.35.08.29
made alot of diference
you should ty out diferent radios and find one that gives the best reception, it will be different for different providers and countries
also i did this...
http://forum.xda-developers.com/showthread.php?t=647460
i unplugged my phone from the charger after doing this at 6am, it had 100% charge
its now10:45 pm, i have 44%charge left...its crazy
before i used to run out of juice around 10 hours after i charged my phone, its not been almost 17 hous and i got 45% left
i seriously suggest doing this
Click to expand...
Click to collapse
I will use that radio too seeing as I too am on T-Mobile in the UK. When you say to use the link and suggest doing it, I take it you mean the "get to 10% -> get to recovery mode -> wipe battery info -> reboot and drain battery 'til off -> charge while off and the take off charger once charged and switch on..
'cos I tried that and still having problems - am using the new Villain 4.0 beta2, so maybe the radio change in combination to this is what will work - I'll try it tonight when I get home.
immya : many thanks i now hove phone back
flashed radio 63.18.55.06_6.35.05.31
and lost 1% over night
previously on LOST
radio 63.18.55.06JU_6.35.09.26 lost 56% overnight
perhaps issue with 2.1 roms is the latest radio and not latest kernal
BTW using sensehero at moment as was trying 1.5 roms to get better battery, and that didnt work.
some one maybe sticky this info , if anymore find it a saviour. will report back after work, mayeven be able to use data syncing again
Hi everyone,
I've received my two S2 devices last week. Both are now with Madmacks 1.4 ROM.
However, here my issues:
1) On both phones, they seem to eat battery faster than I digest water. If 3G is on, Juice Plotter says 8-9h runtime. I usually see "Screen" as taking up to 50% usage (although I'm using it on the lowest level of brightness and 30s timeout).
When I turned 3G off, it goes up to 28-30h (in Juice Plotter). However, 3G is extremely important for me. I dont need syncing by the minute, but I need my data synched every 30-40 minutes. I also wish to use whatsup, skype or talkbox (which consume less than 3-4% according to Bat. usage).
Any ideas on why the consumption is so HYSTERIC? (for comparison, on my Nexus, the same config would eat my bat in ~20-24h, definitely not 8-9h). Last night I've lost from 7pm to 1am over 45%!
2) Bluetooth issues. On one of my devices, I paired it with my car. At first it worked great. The second time I used it my car didn't recognize the device although BT was on. When I palyed with my device and tried "pairing" manually eventually the device "froze". Black screen. Can't shut it off. Got heated pretty fast .. 10-15 minutes later I took the batt out. It drained 45% of my battery!!!
It happened again the next day. However, this time, when I got into the car, the car didn't recognize the device. I took it out, noticed its already frozen. Very Hot. Batt drained 35% aprox.
any ideas?
How come S2 isn't crashing software that gets stuck or drains battery while CPU heats up? didn't have a chance to check the application widget and close it myself.
Thank you!
As some of you may have read about charging issues and have rooted phones that seem to charge slow, then you probably have read the temp fix by restarting with you phone pluged in. This itvself does work if you have a newer fast charge capable kernel. Ie: pretty much any imoseyon kernel. This is true and effective till a call is placed, then the charge will go from hundreds of mA down to around 150mA. (Get battery monitor app/widget from market) to increase charging even faster, restart phone (not hot restart) being plugged in or not doesn't really matter. After phone is back up, you will notice its charging super SUPER QUICK! (Im using the latest imosey GB kernel btw) after phone is up and charging, don't make any calls. Text n surfing are fine. Put the phone in to hibernate mode. Sure you wont get any calls or texts for that time, but with the phone still actually on and the kernel working with even less to do because of its sleeping state, the charging should fly! Get the widget n try it out. I average about 1% every min to min and a half.
After you hit the 90% mark though the kernel may kick in and slow charging waaaay down to complete the charge. Feel free to thank if this helps ya out and good luck :0)
4Geezy ON DopeDiculous's ROOTED TBeezy!
I have CleanROM GBE 1.6.5 (I understand it is not the *newest* release), I am S-ON with HTCDev unlock. I have not installed any new apps nor updated anything (every update is manual) since this has started happening, nor have my habits changed.
My stock 3.8v battery either will not charge, or will do so at such a slow pace it is beyond unreasonable. It has started yesterday and I can't figure it out...example - being on the wall charger or "AC" connection yesterday night/morning, it seems to have a negative charge, whereas my battery meter actually goes down at a substantial rate while on it. Yesterday, I woke up to a totally dead phone sitting on the charger.
When on a normal USB connection, it takes HOURS to charge. When I mean hours, it took 8 hours to go from 4% to 15%...and took 5-8 minutes to go from 15% to 7% while still plugged in from simple web browsing. The data connection was also off during this period (as well as WiFi)
At this time, I have it sitting on the AC charger, and it has gone from 6% to 3% in less than 15 minutes.
I don't understand how continuing my normal routine can cause my battery to appear like it has gone down the ****ter out of the blue.
--Attached are my battery stats.
I want to share the battery problems are back again after upgrading to Oreo ROM(new bootstacks) with a new battery.
So battery life issue? Im so happy i did not update to oreo from B9 7.1.1
Wipe cache partiton?
also, Do the whole 0 to 100% thing to calibrate battery. install gsam and Akku app to see battery info,check for anomalies.
maybe this helps, maybe it does not.
when my battery is charged for 68% and i unplug it on 68%...1 minute later it sits on 69%.It charged 1% when not plugged in.Or when my phone boots on 53%,i unlock with pin and then it drops to 52% and is stuck on 52% for a long time.Weird.
I would support Pruikki about wiping cache partition and calibrating your battery. I had problems similar to yours and have solved them (hopefully) with both of the above.
My battery is the original one and the device is about/a little bit more than 2 years, currently on B03 Oreo. I am sure my battery is still OK but after recent OS upgrades it went mad. The phone will turn off sometimes at 51% battery, sometimes it will reach 100% in 40 minutes from almost empty, or I will see battery charging 1 percent up every few seconds. Or even the phone will turn off at 23% but will show more than 50% immediately when connected to the charger.
I'd try discharging the phone completely until it reaches zero but real zero. The last time it happened to me, the phone turned itself off at 17% claiming it was empty. I started it on and the battery showed 17% (not zero) and stayed at 17 for quite a while. However the first time the phone got loaded, like watching YouTube video in the browser, it turned off again on its own. This repeated a few times until I made sure that the battery was completely squeezed off and not only I couldn't start it but when connected to the charger it shows the left yellow bar and no percentage.
Then you need to connect it to the charger but not turn on and make sure you charge it to 100% while it is off. I'd keep it at 100% for a few minutes to make sure it really reached it. Then you start the phone and let it boot. It is recommended that you repeat this procedure again - discharge again to 0, charge to 100% un-powered, then start over - although once should be OK too. In my case, the phone does no longer turn off before reaching zero but I am yet to see how long this will last. I wiped off the cache partition too since it stores various data that may interfere with the settings, especially after software update.
This does not work,i also recommend you dont do this...this make the battery worst...i already tried.
its possible to charge to 100 but when you unplug it,it goes to 99 directly.
I also tried other bootstacks with other twrp version.And sometimes it shows other battery% when i did not plugged the charger
For me it works but I am stock. I'd sometimes charge it to 93-94% before 7am, will use it slightly throughout the day for Instagram, Whatsapp, some browsing, music listening on the way to and from work (1 hour at least total) with about 1-1.5 hours total SoT and around 8pm I'd still have some 15-8% when connected to the charger.
This is after wiping out the cache partition and doing 0-to-100% charging while off and no restart yet. Battery really goes 99-98% upon starting it upon the battery calibration process when the charger is off, still it works OK now. I noticed that after every restart phone memories the battery state prior to the restart and sometimes will turn off at this level long before zero. I don't say it will be the same for you, but this is how it does for me. I don't dare changing the original battery myself and will keep the phone for as long as it functions, even if I buy something else.
Nothing, really nothing even of the current flagships (apart from LG but there are loads of other issues there) offers dedicated second amp, fully rectangular screen at 2K (not the sh*tty FHD+), not to mention the amazing front facing stereo speakers with Dolby Atmos with extra internal settings (not just on and off button), and 3.5mm phone jack and not some mediocre adapters all at the same time. Sorry, but if ZTE offered the same device with bigger battery, improved camera and SD 855, it would have overtaken the sales of any so claimed flagships all around, even if it matched their prices. At least I would have gone for ZTE again...