im running a stock bionic and just need to know where to go to clear battery stats. phone says 100 pct but after a while of using it goes to 70 pct or so and turns off. when i plug in the charger it says 5 pct battery. after 20 mins or so charging it says charge complete.
This sounds like there's more of a chance that you've got a bad battery than a corrupted battery stats file. I have a friend with a Droid2 that was behaving exactly like that until he replaced the battery.
Should you still want to recalibrate, this is your best bet:
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
any program for non rooted phone. thought there would be a setting in the recovery
Nope. Id take it in to verizon and tell them the battery is bad
Sent from my DROID BIONIC using Tapatalk 2
You don't need any 3rd party apps to recalibrate your battery. Simply let it drain completely (so that the phone powers itself off). Then place it on the charger and allow it to charge completely, uninterrupted.
If this does not fix the problem, then as others have indicated, you most likely have a bad battery. If you take the battery out and notice it is swollen or bulged, it is certainly defective.
Related
I never had this problem until recently i've flashed to Cog 4.
It started after i did a full charge. It discharges to 80% and to 50% and to 20% and to 5% and then died off within an hour. My phone heated up even though when it is not active.
Now, after changing a new battery. I find that i can't charge it above 85%. I re-flashed with Phoenix and Serendipity. The maximum charge still stays at 85%.
I've cleared the battery stats and nothing changed. I need help here.
You might find this thread useful
http://forum.xda-developers.com/showthread.php?t=806211
It has some discussion about cog and battery life, but I suspect it might be outdated. Either way, it should have good info for you on how to get the battery fully charged
First of all, with custom roms, battery drains much quicker than normal, but i think you need to do a calibration. Charge your phone for like 12 hours to make sure its completely full, then drain it all the way until it dies. Then make sure its completely dead and wont turn on (sometimes the phone thinks the battery is dead, but its not. To solve turn on and off until there is no more responce. Take out battery, then try and power on. This will get rid of any static charge in the phone. Put battery back in and charge for another 12-15 hours to make sure its completely full. Go into recovery and wipe battery stats. Then let it die. That should do it.
Sent from my SAMSUNG-SGH-I897 using XDA App
Dupontrocks11 said:
First of all, with custom roms, battery drains much quicker than normal, but i think you need to do a calibration. Charge your phone for like 12 hours to make sure its completely full, then drain it all the way until it dies. Then make sure its completely dead and wont turn on (sometimes the phone thinks the battery is dead, but its not. To solve turn on and off until there is no more responce. Take out battery, then try and power on. This will get rid of any static charge in the phone. Put battery back in and charge for another 12-15 hours to make sure its completely full. Go into recovery and wipe battery stats. Then let it die. That should do it.
Sent from my SAMSUNG-SGH-I897 using XDA App
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yes and no.
custom roms wont necessarily use more power, in most cases less. and technically most power consumption is controlled by the kernel, and secondly the installed services in the ROM. new kernels useually come with a new rom but you dont have to keep it or you can upgrade it ect. But yes, when changing the kernel either by itself or with a rom you should reset battery stats.
I suggest drain it dead, plug it in until it is full, reboot into recovery and wipe batt stats (or use SGS tool script) WHILE PLUGGED IN, unplug.
or if you have an external batt charger, wipe batt stats in CWM then put in full battery.
Trusselo said:
yes and no.
custom roms wont necessarily use more power, in most cases less. and technically most power consumption is controlled by the kernel, and secondly the installed services in the ROM. new kernels useually come with a new rom but you dont have to keep it or you can upgrade it ect. But yes, when changing the kernel either by itself or with a rom you should reset battery stats.
I suggest drain it dead, plug it in until it is full, reboot into recovery and wipe batt stats (or use SGS tool script) WHILE PLUGGED IN, unplug.
or if you have an external batt charger, wipe batt stats in CWM then put in full battery.
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When I said custom roms i meant that when you are on something other from stock. And for the most part, unless you are on a minimalistic rom, you do get worse battery. It is a known fact. Sure I have gotten 50 hours out of a rom/kernel combination, but it was never consistent. I had to flash back to stock and masterclear because i have random shutoffs and need to return it, and im seeing easily 30 hours out of stock with 3 hours usage of web email phone. Maybe its not the same for you, but stock has had the best consistent battery life for me.
Sent from my SAMSUNG-SGH-I897 using XDA App
My battery never charges above ~76% when plugged in. After rebooting however, it is very much at 100% and lasts for a good amount of time. This is not necessarily a question, but I wonder if others are experiencing this too and if there is a fix? Read below.
I noticed that my battery life got very bad after installing custom roms. I also found out that this happened because I sometimes kept the phone plugged in while flashing, something that totally screws up the battery reading. So, I followed this guide to calibrate my battery and it worked.
Now, whenever the phone is plugged in it NEVER goes to 100% when charging. Maybe 80% if leaving it for a while (10 hours overnight). I'm worried about frying the battery. Is there a fix?
It is only a matter of presentation. It actually doesn't mean your batt is broken. Plug it and charge it overnight. Then discharge only for few percent and plug it back in. It should go to 100%.
Sent from my HTC Legend
Thanks, I'll give it a try.
What I'm concerned about is if the phone "thinks" the battery isn't recharged and keeps squeezing juice into it when in fact it is full (which a reboot will show)? That's not good for the battery. It should go into trickle charge after reaching 100%..
The process described in the desire forum is also known as formatting the battery. In fact most of battery manufacturers (lithium battery manufacturers) recommend doing this in a slightly different way:
Before first use:
1.) Before powering the device on, plug it in and let it charge until the LED is green (fully charged)
2.) Then take the battery out of the device and wait an hour (to make sure all the chemical processes in the battery are as idle as possible)
3.) Then plug it back in, while still off and let it charge untill green LED
4.) use the device....
You can practice this slightly modified with first step being:
Discharge the battery (by normal use)until only few percent are left (1 - 5 % are OK)
I've done these steps with my Mugen extended battery and I was getting around 4 - 5 days on Legend, now I'm getting 2 - 3 days on Desire S, but the ROM isn't very optimized yet, I believe it will be better in time...
Just one thing... Why is this in Development!?
No Idea.....
can mods move this?
BlaY0 said:
It is only a matter of presentation. It actually doesn't mean your batt is broken. Plug it and charge it overnight. Then discharge only for few percent and plug it back in. It should go to 100%.
Sent from my HTC Legend
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sz1a did this solve your problem? Have the same problem with every firmware i've tried....
peddalion said:
sz1a did this solve your problem? Have the same problem with every firmware i've tried....
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Definitely did not solve it but at least the battery performance is ok. It just stays at 78% for a few hours drops from there. Very weird but as long as the battery doesn't get broken I guess it's ok.
Do you have some 3rd party battery installed in your Legend? I have one 1,5 Ah in mine and it is acting the same way. It doesn't bother me too much coz it was cheap... it lasts 48 hrs with data always on and moderate usage. I noticed this that when I charge it overnight and it reaches 80%, unplugging it stays at 80% for several hrs and just after it starts dropping if I plug it again, meter reaches 100%. It's weird but as I said I can live with that
I've got exactly the same issue with stock 2.2 ROM. I've never rooted or CM my phone; I was wondering if CM would do it, but doesn't look like it.
android forums /htc-legend/265545-battery-doesnt-fully-charge.html
(sorry, I can't post links; maybe an admin can fix the link for me?
This seems to indicate it's a phone hardware fault and requires a new Legend to fix! My big worry is, as stated, that the charging light never goes green; therefore is pumping lots of power into a potentially full battery.
The last couple of days I've got a weird problem. When my battery is fully charged everything seems okay and it drains in normal speed (compared to stock).
But when my phone runs out off battery and i start to charge in the beginning everything seems fine.
But suddenly it can go from 75 to 100% in 1 minute.When i look at the stats in MIUI ROM it seems like it's not at same height as it was the last day of 100%. Maybe only 80%.
Sorry for my bad English, but i hope it makes sense.
I've wiped battery stats in CWM. But is it possible that the phone actually is only 80% charged, even though the indicator shows 100% after wipe?
Because if the ROM think the battery is charged and wipe stats it will afterwards only charge to that point and the battery maximum will decrease over days?
If that's possible, how do i full charge the battery? Just leave it in the charger or?
I hope you can understand what I mean.
Thanks in advance
Hello
Does your phone charge to fx 75% and after that doesnt get higher until after you restart the phone?
Sent from my LG-P990 using XDA App
CescMusta said:
Hello
Does your phone charge to fx 75% and after that doesnt get higher until after you restart the phone?
Sent from my LG-P990 using XDA App
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Yes excactly. But the numbers differs.
Today it charged to 100% though.
Got the same problem?
Sent from my Optimus 2X using XDA App
have you try calibrate your batt again
yes my friend have this problem too, maybe there is software bug
After flashing Celebration HD 2.0.1b I first used Battery Calibration from market to wipe battery stats. Afterwards the battery indicator problems started.
Yesterday i decided to wipe battery stats manually in CWM and drain to phone to 2% before charging, and afterwards I was able to fully charge the phone.
So maybe the bug in is Battery Calibration app?
I decided to install Juice Plotter to monitor the battery and compare it to one build in in MIUI. Just to get some more data.
Hello again
Yes i had the same problem as you, with my previosly 2 lg optimus 2x, and returned them because of the problem you mentioned. I am on the third op2x and luckily this work good
So if i were in your position i would try to go to the dealer and shift the phone with another lg optimus 2x.
Best regards
Sent from my LG-P990 using XDA App
CescMusta said:
So if i were in your position i would try to go to the dealer and shift the phone with another lg optimus 2x.
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The user said that he started to have problem after a new rom and wiping battery stats, changing phone for that is not the smartest move at all. Is like changing phone because your rom doesn't work.
I have a similar problem, after you wipe battery stats you don't have a reliable indicator, for me the phone took 3 hours to get from 99 to 100%.
I also noticed that my miui ( 1.8.5 same for 1.7.29) doesn't update battery stats when the screen is off so all those plotter don't work, and i think this messes up with the battery indicator (I guess the phone doesn't have enough data to make a decent estimate)
I think is miui + wipe battery stats that can be problematic
I know that but i am just saying that i also had the same problem with the stock rom.
Best regards
Sent from my LG-P990 using XDA App
How old is the battery? How many cycles does it have?
I know from laptop Li-Ion batteries that the voltage vs. capacity is not linear.
When discharging, the voltage will steadily drop to a "wear-level" where it will jump to an almost depleted level. When charging, this "wear-level" will be at the top.
Why I am telling this? Because if this mapping is kept in SW and you wiped it, Android needs to relearn it again. So at 1st complete charging/discharging you would see a % sudden drop/raise, but at the next cycles it would be linear with time (although the total time will be smaller than a new battery).
When laptop/phone battery tips talk about calibration, it is so whoever monitors the voltage (circuit in battery or SW) to know were the wear drop will be, so your estimates to be better.
As an example, I had a very old Thinkpad that did not have any calibration, and it would discharge to about 40% and drop to 5% within seconds. But when charging, it would raise steadily to 70% (from that 5%) but 70% to 95% in seconds. After years of use, that percentage gap would just increase (40-5 got 60-5, 70-5 on discharging).
PS: my current Thinkpad has 4 years and the battery capacity is 49% with 150 cycles. But this one has a nice feature where if the battery was above a certain percentage, plugging AC would not charge it (and thus save a few cycles). I used it set at 70%.
PS: LiIon batteries have cycle count, heat and time as main enemies. Also don't like prolonged (think storage) low charge.
battery on wallcharger screen of error
CenaDK said:
The last couple of days I've got a weird problem. When my battery is fully charged everything seems okay and it drains in normal speed (compared to stock).
But when my phone runs out off battery and i start to charge in the beginning everything seems fine.
But suddenly it can go from 75 to 100% in 1 minute.When i look at the stats in MIUI ROM it seems like it's not at same height as it was the last day of 100%. Maybe only 80%.
Sorry for my bad English, but i hope it makes sense.
I've wiped battery stats in CWM. But is it possible that the phone actually is only 80% charged, even though the indicator shows 100% after wipe?
Because if the ROM think the battery is charged and wipe stats it will afterwards only charge to that point and the battery maximum will decrease over days?
If that's possible, how do i full charge the battery? Just leave it in the charger or?
I hope you can understand what I mean.
Thanks in advance
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I have when i turn off my fhone and i charge it it shows a battery icon whit an error in it ics lgp990 please help i dont no what tho do
I just started noticing this after I installed Liberty48 (it might have been happening before)
After some use of my phone, it goes down to like 80% battery, but when i reboot, its back at 100%.
Then I tried doing this calibration technique even though its for the DX2 (figured it couldn't hurt)
http://www.droidxforums.com/forum/droid-x2-hacks/36498-battery-calibration-new-method.html
...afterwards, i experienced the same problem, battery drains a little bit and goes way up after a reboot.
Is there any fix for this? I don't have a problem SBFing (or FXZ whatever you call it). I have all my stuff backed up in multiple places. Is this a Droid Bionic problem, or a Liberty ROM problem?
One thing about calibration is that you want to run the battery all the way down at least once without powering down and then charge it to 100% without unplugging (but while powered on). This gives it a chance to establish new battery stats- otherwise it can revert to the assumed values and usually throw off your fresh calibration.
MillionManMosh said:
One thing about calibration is that you want to run the battery all the way down at least once without powering down and then charge it to 100% without unplugging (but while powered on). This gives it a chance to establish new battery stats- otherwise it can revert to the assumed values and usually throw off your fresh calibration.
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That's what Wipe battery stats on CWM is for. I did that.
Not exactly... you're just giving it a fresh start to rebuild the battery stats log "wrong", in essence. One full discharge and charge usually gives it enough recorded stats to properly establish the full point- otherwise the phone assumes that about 4100 mV is fully charged, when in fact this is a high-voltage battery and it should be at about 4300.
MillionManMosh said:
Not exactly... you're just giving it a fresh start to rebuild the battery stats log "wrong", in essence. One full discharge and charge usually gives it enough recorded stats to properly establish the full point- otherwise the phone assumes that about 4100 mV is fully charged, when in fact this is a high-voltage battery and it should be at about 4300.
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So I should just charge it, then let it die, then charge it again while its on?
You got it. As long as you don't plug it in or power it down during discharge, and leave it powered on and on the charger all the way to 100%, you should be good after one cycle.
MillionManMosh said:
You got it. As long as you don't plug it in or power it down during discharge, and leave it powered on and on the charger all the way to 100%, you should be good after one cycle.
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Could I use it as normal during the discharge?
Yep, that's fine. It shouldn't impact anything if you use it during the charge cycle as well, as long as you don't do anything (like hotspot) that would drain the battery faster than it was charging.
MillionManMosh said:
Yep, that's fine. It shouldn't impact anything if you use it during the charge cycle as well, as long as you don't do anything (like hotspot) that would drain the battery faster than it was charging.
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This. Last calibration I did, I ran it down via streaming a netflix movie on 4g. Burned it down in a little over 2 hours.
I'm using a HTC sensation with insert coin rom sense 3.5. Sane exact thing is happening to me except the battery is drained after a restart from maybe 40% to down 6% after a reset.
Sent from my HTC Sensation Z710e using XDA App
Similar issue here. New Droid Bionic. Battery went from 40% to 5% within a minute or two while sitting idle.
Hopefully 5% is enough of a discharge to calibrate the battery. I just finished charging it back up fully.
I just completely killed the battery wiped the status and charging now. In the morning I'll do this step and see how well the battery is after tomorrow.
Damn, it used to last me much longer than this, I don't know what happened.
Sent from my HTC Sensation Z710e using XDA App
Alright so I did the Droid x tip as well, it really doesn't have any effect on HTC phones since it just uses the led light to let you know that the battery is charging or full. But I also turned off always on mobile data and it uses less juice that way. I still get Gmail pushing email and twitter with mention updates.
So far, so good. I'm not rebooting mmy phone for a good two days. Afraid the battery meter will jump all around the place again.
Sent from my HTC Sensation Z710e using XDA App
No matter how many times I calibrate my battery, it lasts for over 30 mins of straight youtube watching with 3g wifi bluetooth and gps on. I know there's no need to calibrate after the stat wiping after charging to 100% but I would like my battery to display correctly. The past two calibrations told me it was off by 8% but it did it twice not only once. So how can I get my battery to display correctly and not last forever sitting at 1%
Sent from my DROID3 using XDA App
Charge to 100% (leave on charger for 4-6 hours) then calibrate (remove batterystats.bin) then deplete battery until phone shuts off by itself, then charge without break to 100%.
Sent from my DROID3 using XDA App
There is no battery calibration. A google engineer has already ended that theory. The batterystats.bin updates everytime the phone is plugged in to charge. Dropping your battery to below 20% before charging is always a wise decision, but you can't calibrate it by deleting file.
ChristianPreachr said:
There is no battery calibration. A google engineer has already ended that theory. The batterystats.bin updates everytime the phone is plugged in to charge. Dropping your battery to below 20% before charging is always a wise decision, but you can't calibrate it by deleting file.
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I already stated that above but my phone can sit at 1% forever and not die so somethings obviously off
Sent from my DROID3 using XDA App
Obviously it's your battery.
The phone gets the %charge by the voltage. A good battery has a linear drop of voltage during use, but if a cell is defective, it can report a misleading voltage drop curve while still having enough charge to work. IF the battery drops under a determined voltage AND current, it shuts off. While both conditions aren't met, the phone keeps using it until a safe point, where it doesn't damage circuits or the battery itself
Rocking with my M3 and XDA app
Hash's ICS Alpha 7 + Camera fix