i've been running Nero 4.1 since it was posted and battery life was fine, suddenly last week it has been cut in half. I didn't load any new apps or change any of my settings or usage habits. I was getting 25+ hours and now I get 16 tops with very light usage. My battery stats say display is using 73% but the phone is idle most of the day. What could have caused this? Also I have tried conditioning the battery, it didn't seem to make a difference ,and, I flashed the rom with 100% charge.
did you condition it right?
My brother did the OTA update last night, his phone has never been rooted.
After about 5 hours today his battery has about 20% life left! Battery stats says 74% of the power was used by the display which was on for 40 minutes.
Cell standby is about 4% of battery use and he was without signal for 25% of the time, if I recall correctly.
Anyone else observing something similar?
My battery life on 2.9.2 has been less than desirable and I was considering going back to stock in hopes the battery would be better after the OTA. This is not encouraging.
Also, does he need to go through a couple battery cycles, drain fully then fully charge, before he gets a clear picture of what the battery life would be?
TIA
Yes true battery life will be clearer after a few days of use. The phone learns your usage and gives a better idea of how much charge is left.
best way is to fully charge battery and then wipe battery stats and then drain battery and then charge battery to full one charge. Then use phone normally for s couple of days. Then you will hadn't good sense of what kind of battery life you are getting.
Sent from my SCH-I500 using XDA Premium App
Thanks for the response.
Am I correct that he would need to root to be able to run the battery stats script or is there another way?
wscaddie56 said:
My brother did the OTA update last night, his phone has never been rooted.
After about 5 hours today his battery has about 20% life left! Battery stats says 74% of the power was used by the display which was on for 40 minutes.
Cell standby is about 4% of battery use and he was without signal for 25% of the time, if I recall correctly.
Anyone else observing something similar?
My battery life on 2.9.2 has been less than desirable and I was considering going back to stock in hopes the battery would be better after the OTA. This is not encouraging.
Also, does he need to go through a couple battery cycles, drain fully then fully charge, before he gets a clear picture of what the battery life would be?
TIA
Click to expand...
Click to collapse
I update OTA last week on Verizon to Froyo 2.2. My battery was overheating and draining like crazy from my CPU usage being at a constant 99%..
I found the source of the problem. An app I use for facebook called "FLOW". The CPU usage was cut to 20% when I killed it with "Advanced Task Killer".
I resolved the issue by: Opening Flow.. going to Preferences.. Notification Settings.. Refresh Type.. Checked Periodic Polling (I was using Gmail Experimental previously)
Hope this helps...
I agree, the OTA froyo ED01 is worse for battery life. I get 5-8% per hour idle drain, which is way too high. I've been try to track down the issue with spare parts, system pannel, and battery details. So far I can't see any specific issue.
There are so many hoops to jump through just to get this phone working normally. It's really insanity that we should have to bust our butts on software bugs. And this isn't even mentioning the totally slow choppy ass browser in 2.2. (Vibrant browser on 2.2 SO much better)
Overall my urge to flush this POS down the toilet is growing every day.
I'm on Axura 2.2.7.2 and have horrible battery life no matter what battery I use.
For example, my battery percent is at 63% right now:
4h 48m 38s since unplugged
Display 90%
WiFi 5%
Cell Standby 3%
Phone idle :1%
The weird thing is that I don't really use it a lot either. I used it for maybe 20 minutes max. Talked on the phone for 5 minutes, made about 10 texts, and checked the time from my phone thats it.
Also, I'm using Zeam launcher, could that be the problem?
Please give me some tips on how to maximize my battery life.
You have to calibrate your battery. Download Battery Calibration from the market first, then kill your phone all to like 5%. Charge your phone all the way up to 100%
Then click on the calibrate button on the Battery Calibration app. You should be good after that. Make sure your unplug after calibrating and die the phone down again, and then charge is back to 100%
Sent from my Vibrant on Ultimate 2.2.1
please go to settings / about phone / battery use and post what is consuming most of your battery so we can help u better knowing what the problem is.
there are a lot of ways of improving battery. the best 4 me so far is a custom kernel that allows undervolting which helps a lot without affecting performance. underclocking if u want to go the extra mile, and lowering brightness helps too since our screens are battery hogs.
Sent from my SGH-T959 using xda premium
Battery Life Help
Under Volting does not work for me...Making sure I run the battery down all the way and charge it full most of the time especially after deleting battery stats.
So I have just flashed the CM7 ICS Themed BETA, wiping everything.
I then charged to 100 percent, and used Battery Calibration app.
I have just setup some apps, and I have lost 10% battery life in 40 minutes
Display is using 85% battery life apparently.
Please help?
It can take up to a week to fully calibrate the battery. Since the battery doesn't have memory the phone has to get a feel for how much juice it actually has. Try it for a few days running the battery down and then charging it to full without unplugging. If that doesn't work you might want to try charging all the way then reflashing and immediately do a calibration.
Sent from my MB860 using xda premium
Yeah, I'd calibrate the battery - wouldn't hurt.
Ideally always flash on a 100 % full battery to avoid problems like yours..
Vangelis13 said:
Ideally always flash on a 100 % full battery to avoid problems like yours..
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Click to collapse
Cheers guys I've taken this all on board.
I'm on 13hrs on battery, its showing 16pc. Battery calibration app shows 3609mv however. This doesn't seem right to me. Am I correct in assuming the phones battery power is the mv listed and no battery is more like 100mv??
Could anyone explain the 'mv' term to me?
Is 0mv when it powers down? Is this indicative of power?
Thanks.
Lithium ion batteries never fully discharge. If they did the battery would not recharge again.
Sent from my MB860 using xda premium
mv referers to mV, as in Milivolt. Most li-ion batteries are rated at 3.7V or 3700mV. A nominal full charge should be around 4.2V or 4200mV.
dLockers said:
So I have just flashed the CM7 ICS Themed BETA, wiping everything.
I then charged to 100 percent, and used Battery Calibration app.
I have just setup some apps, and I have lost 10% battery life in 40 minutes
Display is using 85% battery life apparently.
Please help?
Click to expand...
Click to collapse
That's 35 minutes of active use. 10% isn't outside the realm of the possible.
I usually can go a full day on 60% battery, but this morning Facebook, the interwebs and text messaging put me from 100% to 77% in the course of 30 minutes. Draining 10% in 45 minutes does not seem out of the realm of possibility
I get mine to last around 20-26 hrs on a single charge, of course depending on use. but i hardly leave the house and dont use it a whole lot. One thing to make sure of is setting up profiles on SetCPU and/or undervolting. i just posted my setup on another thread. http://forum.xda-developers.com/showpost.php?p=20284361&postcount=28
so after you clicked the battery calibration button and it said calibration successful, you're wondering why the battery is dropping so fast under use right away?
Easy answer my friend, when you first use the battery calibration app, the first cycle (when phone is being used) will always drain a lot faster than the 2nd and 3rd time around.
The battery calibration app, wipes the battery stats, and makes a new one, however that does take at least 1 - 2 times of a full charge/discharge of the battery. There is a battery tread in the atrix general forum i believe for cailbration steps, etc to go about successfully doing a complete calibration when flashing from rom to rom.
Hope this helped
Hmm, maybe I am just upset that I have to charge every night.
Coming from a BlackBerry 9780 I could go 2 days with semi-heavy use.
I am now using the official Motorola cable, and only charging from very low to full.
Thank you for the advice.
dLockers said:
So I have just flashed the CM7 ICS Themed BETA, wiping everything.
I then charged to 100 percent, and used Battery Calibration app.
I have just setup some apps, and I have lost 10% battery life in 40 minutes
Display is using 85% battery life apparently.
Please help?
Click to expand...
Click to collapse
Try getting one of these:
4800mah extended battery
1900mah extended battery
Problem Solved.
Bluetooth radio was killing my battery. WiFi is fine leaving it on as it disables in stand by, but bluetooth was absolutely draining everything.
thanks for the update
I agree, 10% loss in 40 minutes of active usage is not bad. If the OP had better battery life before he flashed to new ICS themed CM7 beta rom, maybe the new rom is to blame??? I'd OC/UV, possibly with the latest faux123 kernel.
dLockers said:
Problem Solved.
Bluetooth radio was killing my battery. WiFi is fine leaving it on as it disables in stand by, but bluetooth was absolutely draining everything.
Click to expand...
Click to collapse
Thanks for the tip!!!
Hi guys. I'm running on CheckROM revoHD4 and while sometimes I lose 10% of battery overnight today I dropped 30% in 3.5 hours doing absolutely nothing with screen off and not a huge ammount of apps running on the background. And its not the first time I notice inconsistent discharge. When I installed this ROM battery would last for 20h/3h screen/3h voicecalls. now sometimed it doesn't even last half of that. Any ideas?
You should check the battery info via Settings > About Phone > Battery Stats to see if you find a proccess that is huging the battery.
Also you could download Better Battery Stats from the Market and find which proccess are the ones doing the more Wake Locks and how much time they have done it. You could find for example an app thats been doing that for hours and that could be the cause of the battery drain.