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Good Morning everybody!
I think I have a defective thunderbolt battery, sometimes when I pull my phone off the charger it drops to 95%. Funny thing this is not a everyday thing. Anybody having a similar problem like this? Sorry if this been discuss before. Have a bless day everybody...on my way to the office.
I have the same thing happen. There is something goofy with how the meter reports battery level. If you reboot your phone it drops even more.
Sent from my ADR6400L using XDA Premium App
Yea I notice that too. I seen my battery drop down 15 percent after rebooting. Is the battery defective? Or the phone is defective?
Bump charge it. Charge it all the way. Unplug, turn it off, then on, and keep charging.
Sent from my ADR6400L using XDA App
The phone/battery aren't defective. I have the extended battery so I never bump charge it, but he is right. Charge it up until your charging light goes green, unplug it and then turn it off. Once it shuts down, plug it back in and will now be orange. Charge it until it's green again. Sometimes it will take a few minutes, sometimes an hour. I'm also color blind so I can never tell whether that damned light is red/orange/green. >.<
chrisjm00 said:
The phone/battery aren't defective. I have the extended battery so I never bump charge it, but he is right. Charge it up until your charging light goes green, unplug it and then turn it off. Once it shuts down, plug it back in and will now be orange. Charge it until it's green again. Sometimes it will take a few minutes, sometimes an hour. I'm also color blind so I can never tell whether that damned light is red/orange/green. >.<
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He gonna have to turn it on then plug the charger in. If left off then plugged in the phone will boot into recovery.
Sent from my ADR6400L using XDA App
charge ur batt. to 100%, then go into cwm and clear batt. stats, when u turn it back on it should b around 80-85% then charge all the way back full again and then u will b at full capacity
obriennathaniel said:
charge ur batt. to 100%, then go into cwm and clear batt. stats, when u turn it back on it should b around 80-85% then charge all the way back full again and then u will b at full capacity
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is this all the time we have to do, I have the extended battery and it doesnt drop and I read about clearing the batterystats.bin but is this something we always have to do when we charge the phone? when I use the standard stock battery it drops with no problem
I didn't have any issues until I wiped the battery stats and now, my battery is constantly inconsistent. I would not recommend doing it as it has nothing but a pain in my arse since.
Have tried "bumping it" which essentially means to charge it to 100%, restart it, then charge it back again from whatever it dropped to.. Mine initially was around 85ish.. After a few "bumps" it crept up to 90 or 91 and then wouldn't go any higher. I charged it back to 100% and decided to follow the advice from another article which said to let it deplete to 0%.. In doing that, surprisingly it "froze" in a couple of places, I don't recall the 1st % but the 2nd % was definitely at the 28% mark. It literally sat there for a good 2+ hours with screen on max and didn't go down. Eventually it went down to 1% and I charged it back to 100%.
Issues still remain, wondering if I should've let it completely die out and force itself off?
Lesson: DO NOT MESS WITH BATTERY STATS with CW.
obriennathaniel said:
charge ur batt. to 100%, then go into cwm and clear batt. stats, when u turn it back on it should b around 80-85% then charge all the way back full again and then u will b at full capacity
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Where do I get into CWM, to do this?
Thanks for your help everybody! I'm sorry if this is a dumb question...what is CWM? My device is stock.
CWM = Clockwork Mod.. Goto Market, download ROM manager, then you can flash CWM. Not sure if that'll do you any good if you're not rooted though.
why when I reboot my phone like 15% of the battery life drops I love this damn phone man...i cant put it down while im at work
The battery reading after reboot is wierd.
Yesterday I was at 51% and draining are at a pretty steady rate like normal. After rebooting, it showed 41% but then it say at 41% for AWHILE.. after like an hour, it read 40% and started discharging at the normal rate.
Your battery gauge is lying to you (and it's not such a bad thing)
Good Read
feedhead said:
Your battery gauge is lying to you (and it's not such a bad thing)
Good Read
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Thanks for the repost, I had skimmed this thread earlier but don't recall it being so detailed. Seems like the moral of the story is that while "bump charging" works, it's not really recommended as it can reduce the overall life of the battery. Wonderful, now I regret ever messing with the battery stats at all, although I can't say for sure I didn't have this issue prior to doing so.
My OEM battery wouldn't hold a charge even after charging it all day... I took it to the VZ store and they replaced it for free...... I also just bought the larger 2750 mAh battery.... works great!
There has been much confusion and frustration surrounding our battery life and these custom roms. Some of us have great battery while others are having horrid problems.
I am writing this guide in the hopes it will help all of you with problems getting that great battery life.
This is a guide written from my own experience and technical understanding.
First, Your phone should drain, on average, 1% per hour or less while in standby mode (screen off). If you are not getting this average, you need to calibrate your battery.
ALWAYS flash a new rom with your phone at 100% battery - no exceptions!
i know some guides say to run battery down to 2% and then charge, but i never had much luck with this.
1) Before you flash your rom, charge your battery to 100% with the phone ON.
2) Once it says fully charged, turn the phone off and plug it in and wait for the on screen display to say 100% (this will take 5 to 10 min)
3) Turn the phone back on, and plug it in and charge till it says 100%
4) turn off the phone and charge again while off until the on screen battery indicator says 100% (again this will take 5 to 10 min)
5) repeat steps 1 thru 4 as many times as you feel comfortable, I recommend at least twice (I do it 3 times)
6) when you are satisfied with the charge, and the phone is still OFF with the indicator saying 100%, unplug the phone, remove the battery, and place the phone in download mode (hold vol down and plug into the PC)
7) flash your package (this is done in odin with the battery removed)
8) The first boot after the flash needs to be into Clockwork Recovery, wipe battery stats at this time (most roms will boot into recovery automatically, if not, boot into recovery manually)
9) after you have wiped your battery stats, wipe cache and other data (if the rom you are flashing requires this, if not, skip this step)
10) Boot the rom to the homescreen.
11) from this point on, you will use your phone like normal until the phone completely shuts off. this SHOULD take a while. you should see improved battery life during this stage. If not, dont panic, just run the battery down until the phone shuts off
12) once the phone shuts off (try to time this to happen at bedtime) plug the phone in and allow it to charge in the OFF position
13) once it is at 100% again, use the phone like normal and enjoy your new battery life.
IF YOU ARE DOING THIS WHILE NOT FLASHING A NEW ROM
Do steps 1-4 as many times as needed, I recommend at least twice, i do this 3 times
on the last charge up (your phone should be off while charging during this step) unplug the phone and boot directly into recovery and wipe battery stats. then proceed with the rest of the guide.
TO TEST THIS
charge to phone to 100%, try not to mess with it for an hour or so.. (light usage at most) you should still be at 100% or 99% after an hour. If you are at 95% or below, then the calibration has failed. (unless you have been using the phone or are in a very low to no signal area).
this calibration method is crucial to good battery life. Before I started doing this i was getting very bad battery life. Click on my username and look at my previous posts.. you will read about me *****ing badly about my battery, this is what I did and it has worked amazingly well.
I hope this helps
I combined a lot of techniques ive seen in other threads and some websites and then created this technique which seems to work really well.
I have used this technique and can confirm, it works well if done properly.
From my Charge - XDA Premium
Are the first few steps what is referred to as "bump charging"?
I think this has worked quite well. I flashed Humble 1.2 (at 40% battery) last night, charged up, then started this procedure. After I got done, I took it off the charger and after 15 minutes of trying a new game, listening to a minute of music, and checking various things, I was still at 100%. i left it off, went to bed with wi-fi on, and woke up at 95%. Awesome. My all-day phone is back.
szgeti said:
Are the first few steps what is referred to as "bump charging"?
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Yup glad that this works for folks
Sent from my SCH-I510 using XDA App
What happens after the calibration process? do i have to do this everytime i charge my battery or does like normal mean i can just leave it charge whenever. Also with what frequency should i be doing this? once a month calibration?
Just did this... 1 hour 15 mins. and still at 100% Sent two text messages out and played Words with Friends for a minute. Thanks!
Did this and it didn't work advice on what I am doing wrong I did the bump charge 2 times ran the phone down 100% and am now looking at 88 percent of next to no use after about an hour and a half of having the phone on.
Sent from my SCH-I510 using XDA App
thecontrolm7cl said:
Did this and it didn't work advice on what I am doing wrong I did the bump charge 2 times ran the phone down 100% and am now looking at 88 percent of next to no use after about an hour and a half of having the phone on.
Sent from my SCH-I510 using XDA App
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I am in the same boat with you.....I'll just have to accept the fact that I will have to charge every 6 hours, which was a 2 hour step up from the TB.
This works, going on 17 hours and still at 65%.
Sent from my SCH-I510 using XDA App
brian1972ct said:
I am in the same boat with you.....I'll just have to accept the fact that I will have to charge every 6 hours, which was a 2 hour step up from the TB.
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What I am curious to know is what is usage like for the people that this worked for. Don't get me wrong I'm not doubting the op but I am a pretty heavy user and even so I'm not really experiencing this awesome battery life everyone talks about when I'm not using it heavily
Sent from my SCH-I510 using XDA App
For all of you that are getting the great life, what percentage does it list for display? This is under settings > about phone > battery use.
I'll have to try this method. My battery life is actually worse now after I tried doing the drain to 2% method. I'll report back with my observations.
Are we talking 3G or 4G here?
I would find it useful when people are talking about how good (or bad) their battery life is to know if they are in a 4G area and have 4G turned on, or are they using 3G only?
Trying to figure out how bad a hit 4G takes on my phone...
Thanks.
knodalyte said:
I would find it useful when people are talking about how good (or bad) their battery life is to know if they are in a 4G area and have 4G turned on, or are they using 3G only?
Trying to figure out how bad a hit 4G takes on my phone...
Thanks.
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So I tried this out yesterday...I don't have a rooted phone so I could not wipe battery stats (does anyone know how to do this without rooting your phone?)...but I did follow steps 1-4 three times and I have gone 23 hours on my charge without having to plug it in. I am in a 4g area and had 4g and background services on for the full 23 hours. Had bluetooth, GPS, and wifi turned off. I sent a couple texts, used whatsapp to send texts, used google voice to send texts, made 3 phone calls (about 4 to 5 min each) played angry birds for about 20 min, played words with friends for 10 min, surfed the web on and off, was on tapatalk and browsing forums for about 20 min and I installed a new keyboard and web browser on my phone in those 23 hours.
I am very curious to know if this will improve battery life after that first initial bump charge.
If you do a regular charge after depleting the charge, do you still see improved battery life?
triton302 said:
I'll have to try this method. My battery life is actually worse now after I tried doing the drain to 2% method. I'll report back with my observations.
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Well... did this too with no luck. I'm just going to have to deal with the fact that this is a power hungry phone.
triton302 said:
Well... did this too with no luck. I'm just going to have to deal with the fact that this is a power hungry phone.
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You may have a defective phone or battery.
hooskins said:
You may have a defective phone or battery.
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Click to collapse
I'll try another battery... but I've already been through too many DC's and I'm not returning this one. I have no issues with it at all, just this battery problem.
msticlaru said:
6) when you are satisfied with the charge, and the phone is still OFF with the indicator saying 100%, unplug the phone, remove the battery, and place the phone in download mode (hold vol down and plug into the PC)
7) flash your package (this is done in odin with the battery removed
I dont understand this, you can go to download mode without battery? Or flash a rom with no battery?
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BatTusAi said:
msticlaru said:
6) when you are satisfied with the charge, and the phone is still OFF with the indicator saying 100%, unplug the phone, remove the battery, and place the phone in download mode (hold vol down and plug into the PC)
7) flash your package (this is done in odin with the battery removed
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Click to collapse
I dont understand this, you can go to download mode without battery? Or flash a rom with no battery?
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Click to collapse
Yes. The phone will pull the necessary power for download mode and the Odin flash from the USB port. Just be sure to use a primary USB port (usually the ones on the back of the computer), rather than a hub, as the hub tends to cause problems.
I read a lot of thread about battery calibration so I want to know if someone try this on XT720 and if it's really usefull and not dangerous for the phone.
Thank you
It is useful and not dangerous at all. Your battery has, if stock that came with phone, a full charge of 4.2v.
So let's say that you have been conservatively using you phone most of the day and are at 70%. You decide to flash the Hellmonger edition or CM6 but you make a nandroid backup first. You flash them and it goes horribly wrong and your phone power dwindles down to 30% and you freakout and charge it back up.
When it is charging, you decide to hold off on flashing for a bit and want to go back to your "home" ROM, whatever that may be. You let your phone charge up to 100% and re-flash your back up. Once it reboots and settles down, you happen to notice that just 5 mins ago you were at 100%, but now after flashing your backup, your battery shows 70%.
30% drop in 5 mins is rediculous. Yes it is, bit it didn't really drop 30% in 5 mins because when you backed up your original ROM, you also backed up your data/system/batterystats.bin that was calibrated to 70%.
If you use Battery Calibrator and charge it up fully, run app, hit it and then unplug, it deletes the data/system/batterystats.bin and in a few seconds (5 ithink) it creates a new one with you proper charge and voltz.
So if you flash a lot, this is good for you. Or you can delete the batterystats.bin manually if you want, but there's an app for that.
Woodrube said:
It is useful and not dangerous at all. Your battery has, if stock that came with phone, a full charge of 4.2v.
So let's say that you have been conservatively using you phone most of the day and are at 70%. You decide to flash the Hellmonger edition or CM6 but you make a nandroid backup first. You flash them and it goes horribly wrong and your phone power dwindles down to 30% and you freakout and charge it back up.
When it is charging, you decide to hold off on flashing for a bit and want to go back to your "home" ROM, whatever that may be. You let your phone charge up to 100% and re-flash your back up. Once it reboots and settles down, you happen to notice that just 5 mins ago you were at 100%, but now after flashing your backup, your battery shows 70%.
30% drop in 5 mins is rediculous. Yes it is, bit it didn't really drop 30% in 5 mins because when you backed up your original ROM, you also backed up your data/system/batterystats.bin that was calibrated to 70%.
If you use Battery Calibrator and charge it up fully, run app, hit it and then unplug, it deletes the data/system/batterystats.bin and in a few seconds (5 ithink) it creates a new one with you proper charge and voltz.
So if you flash a lot, this is good for you. Or you can delete the batterystats.bin manually if you want, but there's an app for that.
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Click to collapse
So, if I understand, it's not so usefull because after I lose my 30%, if I charge and I have 100% it's really 100% not 70% right ?
I would say that it is always best to start from a clean slate. It deletes that batstat file and starts anew. Can't hurt, but if you are flashing ROMs every 3rd day like most of us, it does come in handy.
For the moral of the stroy, it will not damage your phone. Just a one click app that you can do manually with Root Explorer if you wanted to.
Woodrube said:
I would say that it is always best to start from a clean slate. It deletes that batstat file and starts anew. Can't hurt, but if you are flashing ROMs every 3rd day like most of us, it does come in handy.
For the moral of the stroy, it will not damage your phone. Just a one click app that you can do manually with Root Explorer if you wanted to.
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Ok, thank you, I will use it when I will flash a new ROM.
Do you actually have to drain the battery fully after calibration?
Sent from my MilestoneXT720 using XDA App
eejin2 said:
Do you actually have to drain the battery fully after calibration?
Sent from my MilestoneXT720 using XDA App
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Its recommended that the battery drain fully, and then be recharged without interruption. I guess thats to give android a full scale from full to empty, to help better report battery stats and consumption.
However for me full drain means 10-15%, its hurts the battery to be drained till the phone powers off.
sohrab.naushad said:
Its recommended that the battery drain fully, and then be recharged without interruption. I guess thats to give android a full scale from full to empty, to help better report battery stats and consumption.
However for me full drain means 10-15%, its hurts the battery to be drained till the phone powers off.
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Haha battery calibration definatly helps the battery a lot but u suggest not draining battery fully??
androidlover123 said:
Haha battery calibration definatly helps the battery a lot but u suggest not draining battery fully??
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I used to drain it fully till my phone turned off before calibration but I read a very detailed article about how draining the battery completely can hurt it. So I choose to drain it till 5-10% which is good enough
How come sometimes when the battery is full it shows 4200mah like it should but sometimes it shows less like around 4165mah in the battery calibration app? At 4165, I still left it there to charge to see if it would increase or not but it didn't...
Sent from my MilestoneXT720 using XDA App
I know that the last little bit of charge just trickles in and takes a long time. If mine is at somewhere between 4150 and 4200, i call it good and go from there. If it was showing at say 4095 and 100%, then there might be something wrong with either the data or the battery. If you are sitting at 4165, then it is charged for the most part.
The app and what it does is more for when you are flashing a ROM and have around 60% and then once booted up fully, you charge it up to 100%. Decided you don't like your ROM and go back to your original ROM via backup, it will show 60% instead of the 100 or 90% you had before you went back to back up b/c you backed up the batstat bin when you nandroided your original ROM.
How about this:
ROM: Epicsteelblue 70% (and you made a backup) Then went to CM6, charged and hit calibrate battery at 100%. Used CM6 for a few hours and decided it wasn't your bag. Your batter is at 50%. You flash back to your Epicbluesteel ROM and you know for a fact you had 50% before you flashed back, but now once totally booted, you are showing 70%. This is why you use the battery calibrator after you flash a ROM. Gotta create a new batstat bin for you "fresh" ROM (even though it is a backup).
Hope this helps explain better.
eejin2 said:
How come sometimes when the battery is full it shows 4200mah like it should but sometimes it shows less like around 4165mah in the battery calibration app? At 4165, I still left it there to charge to see if it would increase or not but it didn't...
Sent from my MilestoneXT720 using XDA App
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That happens sometimes to me aswell. The battery calibration app shows the battery full at 4165 or somewhere in that range. What I do with that is bump charge it. So if battery calibration shows 4165, i just calibrate it and turn the phone off while it is connected to the charger. When it turns off the charging screen appears and shows 100%, i leave it there for an hour or two. Then remove and turn the phone on. If you go into the battery information itll show the charge to be 4200 or close to that. Hope that was helpful you can try it next time.
EDIT: The reason I turn the phone off and let is charge is that when it reboots after fully charging to 4200 it can create a fresh battery stats. Remember battery stats are only rebuilt upon boot. If you calibrate your battery and then dont reboot its useless. To test calibrate it, and then use it for awhile and then try to recalibrate it the app will indicate that there are no battery stats avaible to delete. This is because the ROM has not made any new battery stats and will only make them on boot.
hey guys has anyone tried this method (http://forum.xda-developers.com/showpost.php?p=11803458&postcount=10) of calibrating battery? it seems the dev says that if u use his method, you can calibrate without downtime!!
wow this is damn cool. but its kinda complicated. the old way feels better for me i think...
Battery Updates
The battery updates every 10%, is there any way to make it update more precisely, like every 5%?
I've never been able to get anything better that 10% battery increments
Okay thanks maybe in a future rom this would be nice.
Hi
Is their a way to change from 10% to 1% increameants.
Sent from my XT720 using xda premium
eejin2 said:
How come sometimes when the battery is full it shows 4200mah like it should but sometimes it shows less like around 4165mah in the battery calibration app? At 4165, I still left it there to charge to see if it would increase or not but it didn't...
Sent from my MilestoneXT720 using XDA App
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Click to collapse
It is the property of all rechargetable battery, 4.2V can only see at the moment charging progress just finished. when the power management IC pull of charge current, battery's voltage will drop a litte in a very short time, like you said, 4.165V for example. And, because of your charger is connected, battery will not drain, It won't be another charging progress witch you are expecting.
I know I'm digging up an old thread here, so sorry for that. I've recently tried a few other ROMs, but since have come back to CM6.3.7. I always do the battery calibration thing when I flash ROMs and each time I've tried it lately, it gives me odd information in the Battery Usage screen. I charged my phone to 100% yesterday before leaving work and when I got to work today, it showed 70%, which seemed normal, but the Battery Usage screen showed "1h 24m since last unplugged" and I know I hadn't plugged it into the wall or USB for about 12 hours. I did restart once....could that be the reason why the time since last unplugged is incorrect?
I put a new rom on the phone and calibrated the battery via clockwork after the phone was charged to 100%. I took it off the charger after that and messed around with the phone for a while. The phone had 95% when I went to bed. When I woke up the phone was at 68%. What could cause this? The phone has never done this before until I calibrated the battery. Thanks you all so much
Sent from my Sensation using XDA App
Just use the phone normally for a few days. It will calibrate itself.
OK thank you. Should I let it die then recharge??
Sent from my Sensation using XDA App
I have read so many articles about how to re-calibrate android battery and most of them involves deleting the batterystats.bin and this requires root. What worked for me without deleting batterystats.bin is this: disable fastboot from settings>>power
use your phone until it turns itself off then turn it on again. It should say that battery is at 1%. Use it until it turns itself off again. If it is really at 1%, then it should turn itself off right away. Charge it until the light is green and continue charging it for another hour. After an hour, pull the plug, turn it on, and you are good to go.
Try what works for you best but this is what I did for mine.
Edit: The idea here is to let android know the minimal charge state of the battery.
Thanks you all I am rooted and use cm7. I will give that a try and let you know how it goes
Sent from my Sensation using XDA App
RaDeN305 said:
Just use the phone normally for a few days. It will calibrate itself.
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Click to collapse
Hmm, the Android Revolution-Thread says says something else.
I quote " After flashing Android Revolution HD my battery drains much faster. What can I do?
A: Please charge your battery to 100%, boot your device in ClockworkMod Recovery and go to Advanced ---> Wipe Battery Stats "
You can also use " Battery Calibration " from the Market
bradmill08 said:
I put a new rom on the phone and calibrated the battery via clockwork after the phone was charged to 100%. I took it off the charger after that and messed around with the phone for a while. The phone had 95% when I went to bed. When I woke up the phone was at 68%. What could cause this? The phone has never done this before until I calibrated the battery. Thanks you all so much
Sent from my Sensation using XDA App
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Click to collapse
i did a few things before but this seems to be the most thorough method check this link out and go through the steps. its a good way to get your battery the way you want it and keep an eye on it
My battery has been acting funny lately. Some nights I go to bed with the battery at 100% and when I wake up it's still at 100%. Other nights it loses 10-15% (in about 9 hours). I don't have anything running in the background that I'm aware of that would cause such a discrepancy. A couple nights ago the battery lost 10-12% overnight with the phone turned off! Still the phone was apparently awake all night. How is that possible?
I'm too lazy right now to post a screenshot since xda only accepts urls.
The same here after flashing a new custom rom.
After turning on the phone and making this screenshot percentage immediately went down for 10 to 15 %.
You can check things like that pretty good with apps like Battery Monitor Widget.
Did both of you try to recalibrate the battery?
Do a full cycle charge to 100% use it till 10% then wipe battery stats and charge phone to 100 again
Sent from my HTC One S using xda premium
k1llacanon said:
Do a full cycle charge to 100% use it till 10% then wipe battery stats and charge phone to 100 again
Sent from my HTC One S using xda premium
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Why would you only go down to 10? Might as well drain the battery completely. It's not going to damage anything unless you let it sit around dead for weeks, possibly even months.
It's never good to completely drain a lion battery
Sent from my HTC One S using xda premium
k1llacanon said:
It's never good to completely drain a lion battery
Sent from my HTC One S using xda premium
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Actually, for a proper cell calibration, it is best to drain the battery completely. Many agree and I have never heard a dev say that draining it dead hurts the battery. It is essential for each cell to be empty in order to properly and fully charge a li-ion battery (without this, % figures will be non-calibrated over time). Just like it is of good practice to let the device charge and extra hour or so once the indicator light turns green (to ensure 100% after trickle mode).
Rule 1: Battery calibration does absolutely nothing. Deleting battery stats will never, ever do a single thing to help your phone's battery calibration.
Rule 2: Standby drain is almost always because of partial wakelock or kernel wakelock. Install Betterbatterystats to figure out what the issue is.
Rule 3: If your phone is in a good reception area and still experiences heavy standby drain, charge the phone until it reaches max voltage (4.2 or 4.3), then use it until it shuts off, then go to hboot until it shuts off, then charge to full again, preferably with the phone off. Wait about an hour after you first see the green light to turn it on.
After that, enjoy. If you still have issues, I would suggest backing up everything and attempting an ruu flash with the battery at 100%.
I failed to mention it, but I haven't rooted or installed a custom rom.
I'll try better battery stats to see what I can find out with that.