Can you guys recommend a battery calibration app?
Currently im using ViperSaga, and yes we all know that our DS can live for a day or two depends on the usage.
Battery calibration by wiping battery stats is a myth. After 2-3 charge cycles, the indicated battery level will be as accurate as it ever will or can be.
Battery booster maybe ?
AOSP developer Dianne Hackborn has made it clear that battery calibration is a myth. It only mean deleted the battery stats. And your device does that on each reboot.
how about the wipe battery stats in the recovery? does it help the calibration of the battery?
eisenger said:
how about the wipe battery stats in the recovery? does it help the calibration of the battery?
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Battery calibration does exactly that. It wipes the battery stats. And that is something your phone does automatically on each reboot.
Deleting stats is pointless indeed, but the battery calibration procedure that involves a discharge/recharge cycle, not only deletion of the stats file helps to have proper % indication that cannot happen on a Stock ROM which is the case the Google engineer is talking about. But when flashing custom is another story, then a wrong indication can appear after flashing and it has to be corrected
Sent from my HTC Desire S
Though you can leave out wiping the battery, stats, the charge/discharge cycle is what helps.
teadrinker said:
Though you can leave out wiping the battery, stats, the charge/discharge cycle is what helps.
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Yes, including the final charging of powered off phone, that was posted in several threads lately by the same user
Sent from my HTC Desire S
Related
Title says it all
I always do and I also make sure phone is fully charge and plugged in. Cant hurt
wouldn't hurt, also if swapping batteries as well.
Question related to this - what is everyone's battery voltages when maxed out? I heard that 4200mV is normal, but after how much I charge it and wipe stats, I never get higher than 4080mV in spare parts.
Nikolai2.1 said:
Title says it all
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Sorry for the noobness, but How do you wipe battery stats?
moosez3 said:
Sorry for the noobness, but How do you wipe battery stats?
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rom manager, reboot into recovery or pull battery, and vol. down.
D3TH METAL said:
rom manager, reboot into recovery or pull battery, and vol. down.
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Then go to advanced>wipe battery stats and remember to charge to 100% before wiping. Then let battery completely drain until phone dies and charge back up to 100% preferably with the phone still off.
thanks guys, and sorry i got back here so late. I also use an app from the market called battery calibration. I think its better because rebooting into CWM may use some battery and you would never know
I have another question.
What exactly is the battery stats? and what does it do when I wipe it?
I've been wiping the dalvik cache and battery stats when I flash rom/kernel/etc but never really knew what they were.
eccenpix said:
I have another question.
What exactly is the battery stats? and what does it do when I wipe it?
I've been wiping the dalvik cache and battery stats when I flash rom/kernel/etc but never really knew what they were.
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Only flash battery stats when its charged to one hundred or it'll screw your battery readings. It just makes your battery meter more accurate because flashing a Rom screws with it.
Sent from my ADR6400L using XDA Premium App
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 %.
I just flashed a new kernel on ic 4.6.1.
Do I wipe battery stats, charge to full, then turn everything on to run out the battery, then charge to full
Or charge battery to full, run it out, then wipe then charge to full?
I just had it fully charged, wiped battery stats, killed the battery and am now chargoing to full
Which method is right?
Sent from my HTC Sensation 4G using xda premium
rickyiswhite said:
I just flashed a new kernel on ic 4.6.1.
Do I wipe battery stats, charge to full, then turn everything on to run out the battery, then charge to full
Or charge battery to full, run it out, then wipe then charge to full?
I just had it fully charged, wiped battery stats, killed the battery and am now chargoing to full
Which method is right?
Sent from my HTC Sensation 4G using xda premium
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Fully charge. Then wipe stats. When you wipe the battery stats, it should be full, then your device can know what a full charge is. It doesn't really need to know when the battery is empty or partial.
Google would have found you a couple of articles about this... I answered this question earlier this week in another forum.
Try googling "wipe battery stats android", and you should find a good article on Lifehacker as well as a couple of informative blog entries.
Battery calibration is a myth
Battery calibration is a myth guys
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
mic180 said:
Battery calibration is a myth guys
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
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Yeah, I've seen and read that post. But a quick calibration let's me hit 100% charge without having to trickle charge for excessive hours.
You can say it's not necessary, but the truth is...my phone sometimes says 'Charged' then when I remove it from the charger it immediately drops to 98%. Calibration changes this.
Theory is great. But the real world is the real world.
When i get my anker battery i am going to need to reset the battery stats right? But what exact steps should i go to do this cause its a new battery.
energysipher323 said:
When i get my anker battery i am going to need to reset the battery stats right? But what exact steps should i go to do this cause its a new battery.
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Hi,
WIPING BATTERY STATS MYTH
In terms of the new battery,just cycle(Charge fully/discharge fully) it as normal.
.
Hello guyz,
I want to wipe battery stats of my nexus s but there is no option like that in cwm>Advance>Battery Wipe Stats
Can anybody help me in this?Thx
don't ... it's quite useless
( there are tons of app,but u can also charge to 100% and battery stats are deleted automatically, or pull out battery, anyway it doesn't affect battery life ... )
Yeah as the last poster said, a Google person came out and busted the myth that wiping battery stats helps in batterylife/precise readings. The stats wipe on their own after each cycle, I don't know exactly how long those cycles are but most likely after full charges/a day or two etc.
Its best to just let it be and it will calibrate itself.
But if you really want to the batterystats.bin file is located in the system or data folder in the root directory, delete it and it will automatically start a new one.
I wan to wipe battery stats of my nexus s bcaz it's not fully charging to 100% Only charging to 98% and saying fully charged.Today i have flashed a new rom and now it's charging to only 95%.What the heck problem it is
rakeshbro said:
I wan to wipe battery stats of my nexus s bcaz it's not fully charging to 100% Only charging to 98% and saying fully charged.Today i have flashed a new rom and now it's charging to only 95%.What the heck problem it is
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Some ROMs have a ceiling for charging the battery in order to 'preserve the battery' so it doesn't completely die as fast. So they make it so that it can't charge all the way to 100%
So its not an actual problem on your phone and wiping stats won't help you
However if you still want to be able to charge to 100% you can download nstools which has an option to fully charge
Sent from my Nexus S using xda app-developers app
kriout said:
don't ... it's quite useless
( there are tons of app,but u can also charge to 100% and battery stats are deleted automatically, or pull out battery, anyway it doesn't affect battery life ... )
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Click to collapse
abccg said:
Yeah as the last poster said, a Google person came out and busted the myth that wiping battery stats helps in batterylife/precise readings. The stats wipe on their own after each cycle, I don't know exactly how long those cycles are but most likely after full charges/a day or two etc.
Its best to just let it be and it will calibrate itself.
But if you really want to the batterystats.bin file is located in the system or data folder in the root directory, delete it and it will automatically start a new one.
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Click to collapse
frenchie007 said:
Some ROMs have a ceiling for charging the battery in order to 'preserve the battery' so it doesn't completely die as fast. So they make it so that it can't charge all the way to 100%
So its not an actual problem on your phone and wiping stats won't help you
However if you still want to be able to charge to 100% you can download nstools which has an option to fully charge
Sent from my Nexus S using xda app-developers app
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Ok guyz thx for ur post and ur time.
Batterystats is nonsense. Batterystats are wiped every time you charge your phone to full or almost full. It makes no sense to wipe battery stats with an app. Fully charging your phone and letting it turn itself off because its empty works best!
Me Gusta!
I used an app called battery calibration..
Sent from my Nexus S using xda app-developers app
rakeshbro said:
I wan to wipe battery stats of my nexus s bcaz it's not fully charging to 100% Only charging to 98% and saying fully charged.Today i have flashed a new rom and now it's charging to only 95%.What the heck problem it is
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I had the same issue when i was using stock google ICS/JB ROM.
It disappeared when i made the switch to CM.
No need to delete batterystats.bin
Just flash kernel with blx