For my HTC Hero, people on the boards recommended wiping battery stats and fully draining the battery for a couple of cycles.
Is it recommended for the Gtab as well? Are you able to wipe battery stats on this thing?
clankfu said:
For my HTC Hero, people on the boards recommended wiping battery stats and fully draining the battery for a couple of cycles.
Is it recommended for the Gtab as well? Are you able to wipe battery stats on this thing?
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If you flash clockworkmod you can wipe battery stats.
What exactly does wiping battery stats do? My gtab never charges past 97%. Would this re-calibrate it so that full charge showed 100%?
It's not even a minor annoyance so I'm not intetrested in anything requiring me to drain completely but if this is a simple fix I would give it a go.
I have the same problem...battery won't charge past 96%. I've charged it overnight and wiped battery stats with no success. Any ideas how to fix this??
Vegan 5.1.1
Same issue here, sadly. First time charging, it got up to 100%. After that now though, it stops charging at 98%. No amount of bump charging, battery stat wiping, draining battery, etc, has seemed to work.
It charges to 100% when using it while plugged in. I mean if it matters to you to see the big 100 once in a while ;-)
Not for me, lol. Meh, not a HUGE deal, but kind of a bummer.
Mine has the same issue. Charged overnight while powered on and while powered off and the highest the battery meter reads is 98%. I have attempted to wipe the battery stats, completely drain the battery, and wipe user data- all to no avail. While slightly irritating, it really seems as if the battery is functioning normally and the breakdown is simply the calibration of the software. I am easily getting 6-8 hours depending on usage.
Mine did that as well in the beginning, but after a bunch of good charge discharge cycles charges to 100%.
I have my captivate running 2.3.3 mosaic III ROM the battery life is excellent with a little help from SETCPU but when it fully charges the phones says the battery is full but when i unplug it the battery percentage display says it is at 98% did a battery stats wipe. Just wondering do i need to calibrate my battery also to fix the tiny little problem. by the way i fail to mention running Purple-licious ginger style theme. This is the only issue I'm having
not every battery has the same capacity, 2 oem batteries either.
there is a 2% difference between your batteries.
if you calibrate to the lower battery, the other will show 100% when you put it in, though in comparrison it would actually be 102% ....
its not worth worrying about.
i have 4 batteries i play with... 2 oem and 2 extended... now that confuses the phone!
this is a normal behavior by samsung.
Fully discharging and recharging your battery over the course of a few days should calibrate it to your liking, however Samsung does have a little feature to prevent damage to the battery by overcharging. This is normal and should be of no worry to you as long as you are getting decent battery life.
You can also try charging to full, removing cable and shutting down phone, then charging while off until the battery says 100%. Repeat three times and wipe battery stats.
Hope this helps.
Hi there guys, im trying to calibrate my battery (Stock 1530) using battery calibrator. I have two questions.
1- is it better to discharge my battery then use Battery calibrator to calibrate it or turn off phone and charge over night and power on> recovery and remove Battery stats bin?
2- why my battery at times says 4215 and at times 4209 when its full? can someone describe the right battery volts value to me, thx!
1. i dont use battery calibrator, but charging overnight and wiping battery stats is the way to go.
2. there's no such thing as a "right" voltage. li-ion batteries never charge to their full design capacity. what you should look out for is the current. your battery is full when the current decreases until it settles on a low value. the charging will then stop and you'll notice the current goes to negative.
I have read every possible thread you can imagine on battery calibration and can never seem to do this correctly, is it a myth? No matter what I do, if I restart my phone, I end up going from 100% down to 85-86% EVERY SINGLE time.
This is after "bumping it". (letting it drain all the way to 0% and then fully charging again).
This is after using BATTERY CALIBRATION in the market which was told works well. (again, advises you charge to 100% then "calibrate" it via the APP).
This is after charging it to 100% and restarting it, recharging up to 100%, restarting and recharging (repeat, repeat, repeat), and then going into bootloader and wiping battery stats.
None of these have worked, does someone have a sure fire EXACT way to do this properly or is at ALL just hype? Help.
Your battery will never say 100% after a reboot. It sucks up a lot of juice on a power up and the battery doesn't charge during powering on. I usually drop about 10% on a reboot using the rezound battery. That is normal behavior. If you can charge to 100% with the phone on then you're fine.
Sent from my ADR6400L using Tapatalk
Interesting because I've never lost 15-16% consistently although I guess it using some juice to cycle makes sense. Anyone else seen 10+ every restart? Thanks for the help man in either case.
Hmm, never seen this before. On my phone which is running skyraider uc to 768mhz and uv only loses 1percent on reboot or doesn't even lose charge at all. Not sure why your phone is doing that.
Sent from my ADR6400L using xda premium
I am running G3D uc to 768mhz and on restart I may lose 1 - 5% at most depending on if i made any changes that take a longer restart. I bet you are overclocked? no need, under clock to 768mhz and your phone will run as smooth as 1.2mhz..maybe smoother while using less battery
Running liquid 3.2.1 on my T-Bolt with the Rezound battery and I only lose 1% battery at boot up. Never lost more...oh and I have never calibrated my battery. Also I get about 8-10 hours of moderate to heavy use too. All stock clocks btw
Just to double check - or reword... do it this way - if you aren't already.
Charge to 100%.
Wipe Batt stats
Drain to zero without recharging in any way (AKA let it drain until it shuts off on you).
Recharge until 100% (till it says 100%, not just "green."). And unplug.
And you're good! Try that and check back in.
Battery Calibration doesn't work
Ignore the % number, it means nothing. Use the battery monitor widget or another program that will show you the actual battery voltage. A fully charged battery will be somewhere around 4200 mV and a discharged battery between 3600 and 3200 mV. I've also noticed that the rezound battery throws things off as the mAh rating doesn't match up to either of the thunderbolt batteries. This is why the battery monitor widget shows the rezound battery as 2750 mAh instead of 1620.
What I recommend to my Evo peeps [which I have] is this:
-Charge battery to 100%
-Wipe battery stats in recovery
-Let the battery drain, so it manually powers off
-Charge to 100% again, and good to go
Battery Calibration doesn't work
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By this I mean Google Developers have came out recently and said battery calibration does not increase or have any effect on the state of battery life. All wiping the battery stats does is wipe the stats as to what has been using the battery, etc.
still handy for when you flash a new rom to wipe the stats, but it doesn't improve battery life at all.
smoody said:
By this I mean Google Developers have came out recently and said battery calibration does not increase or have any effect on the state of battery life. All wiping the battery stats does is wipe the stats as to what has been using the battery, etc.
still handy for when you flash a new rom to wipe the stats, but it doesn't improve battery life at all.
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Actually, the post from Dianne @ Google said nothing about calibration. She only talked about wiping or deleting the battery stats file.
You are correct, however all the battery calibration apps available only delete the battery stats file. So like I said it doesn't affect battery life.
wherestheboost said:
Just to double check - or reword... do it this way - if you aren't already.
Charge to 100%.
Wipe Batt stats
Drain to zero without recharging in any way (AKA let it drain until it shuts off on you).
Recharge until 100% (till it says 100%, not just "green."). And unplug.
And you're good! Try that and check back in.
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This is what I thought I had done but will do again. The problem is even after its 100% and in between your 1st and 2nd step when I reboot into recovery, it's no longer at 100% and sometimes down to 85%ish. I will try again tho, thanks!
http://rootzwiki.com/_/articles/wiping-battery-stats-is-pointless-says-google-r316
That pretty much says it. Wiping stats and calibrations are placebos.
l7777 said:
That pretty much says it. Wiping stats and calibrations are placebos.
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Yeah I read that too. But when I flashed my first rom on the tb I got abysmal battery life. 25% in like 20 min. I recalibrated and it got so much better. If its a placebo its a good one.
Sent from my HTC ThunderBolt using Tapatalk
all that says is the the deleting the batterybin file doesn't help. The battery is handled by each by software outside of android itself. So, following the battery calibration from the manufacturer of your phone still might help.
jefferyriess said:
Yeah I read that too. But when I flashed my first rom on the tb I got abysmal battery life. 25% in like 20 min. I recalibrated and it got so much better. If its a placebo its a good one.
Sent from my HTC ThunderBolt using Tapatalk
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25% in 20 minutes means nothing. The % is an estimated number. Find an app that reads the battery voltage if you want a true reading on the battery's charge. Full is 4.2 volts, dead is between 3.0 - 3.6 volts. Battery life should only be measured in hours from full to dead. I've seen my phone stick on 100% for several hours before as well as sticking at 20% for several hours. Ignore the %. Anyone spending all day looking at a % to judge their battery life should go back to a battery indicator that doesn't show %.
Replaced battery with Newpower99 battery. Got normal battery time, but very strange readings. Battery goes up when I am not charging it. Anyone have any idea how to fix this?
samdal said:
Replaced battery with Newpower99 battery. Got normal battery time, but very strange readings. Battery goes up when I am not charging it. Anyone have any idea how to fix this?
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Battery stats are pure estimation. The estimated percentage was less than the actual remaining battery capacity, so it readjusted itself.