I charged my phone to 100%- then as soon as I unplug my phone, the percentage drops to 95%. Is this a battery reconditioning problem? I have 2 batteries- both brand new. The phone is only one week old.
I get the same thing. I think its software related. Mine drops to 97% n then I plug it in n charge more to 100...then I unplug and charge some more. Eventually it'll stay at 100% when I unplug it. This happens even after I've reconditioned the battery.
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same thing happens to me =[ I tried reconditioning the battery but its still the same. I'm going to try reconditioning again and see if it helps.
Yes
Sent from my SGH-T959 using XDA App
mines too!! it drops to 97%. but today i let myphone died then i plugged it in and left it all night after unplugging it it stayed at 100%.
I've experienced the same situation, but only if I unplug it immediately after it says 100%. Now, I let it charge about 30min after it says 100% and when I unplug it, it stays. Not sure if its battery condition or the software. I don't pay all that much attention to it.
When I unplug my phone it goes to 97%. I find that it I plug it back in after 10 mins and let it charge for half an hour, my phone will last almost till 11pm. If I don't do it then I struggle to make it to 6pm. Not sure what is going on here.
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Never happens to me. Maybe because I'm using juice defender.
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Have you guys ever cleared your battery history?
Pretty much all of the weird reading anomalies are merely software/calibration of what percentage the battery is actually at. The actual voltage is pretty much never affected.
Note: Having two batteries can also make weird stuff like this happen as the device calibrates for one battery and then you change it. Just use the gauge as a rough estimate, treat it like the gas gauge in your car.
Remember lithium batteries do not have a linear mAH remaining to Voltage correlation so the calibration is very important and if off even slightly can cause weird things with the "percentages", this is true on all phones, not just the Vibrant.
This is also happening to me, i just let it charge for 30 more minutes then it will stay for %100 but after awhile it will have a huge drop. my phone's battery is getting worse and i'm using wifi everyday.
Once your phone is fully charged, unplug the charger and plug it back in. it will take a little while to tell you that it is fully charged. unplug it and then plug it in again. do this 3 or 4 times. Then when you unplug, your battery will say 100%. I reconditioned my battery after unplugging and replugging 6 or 7 times and now i always have 100% battery after just 1 unplug in the morning.
Related
What happens if I leave my battery charging over night and I don't unplug the charger once my phone pops up the message telling me to do so. Will my battery overcharge and fail? Or its out safe to leave it plugged on once charging is done?
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mystycs said:
What happens if I leave my battery charging over night and I don't unplug the charger once my phone pops up the message telling me to do so. Will my battery overcharge and fail? Or its out safe to leave it plugged on once charging is done?
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
Your phone will be fine, there are fail safes in place to prevent over charge (and fire/explosion). Its just a "convenient" notification to let you know the phone is done charging.
On a separate but related issue, I don't suggest leaving it charge more than 10 hours at a time, since the battery keeps topping off the charge, and in my experience this degrades batteries a bit faster.
Sent from my SGH-T959 using XDA App
Your battery will be fine. Just don't do it every night and you will be good.
Aphotix said:
Your phone will be fine, there are fail safes in place to prevent over charge (and fire/explosion). Its just a "convenient" notification to let you know the phone is done charging.
On a separate but related issue, I don't suggest leaving it charge more than 10 hours at a time, since the battery keeps topping off the charge, and in my experience this degrades batteries a bit faster.
Click to expand...
Click to collapse
this.
Constant topping up will shorten the battery life. Not something to be annal about but don't do it too often. It also does not mean you have to fully drain your battery before charging, nor that you have to set an alarm so you take it off charge as soon as it read full.
Wait, so I should not charge my phone en route from work to home? About a 30 minute drive... not enough to fully charge the phone, just enough so it doesn't die before I go to bed.
I thought batteries did not have "memory" and that you could charge them however.... is there a good source to read?
Constant topping up will shorten battery life?
Care to back up that statement with some sources?
Heat kills Lithium based batteries.
A quick rate of charge or discharge creates heat.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
(From the article)
The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible.
should be balanced with this (from the article as well)
batteries with fuel gauges exhibit what engineers refer to as "digital memory". Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem.
My recommendation is to keep the battery as full as possible at all times and do a full calibration cycle once a month. Done.
If you want the battery to last longer stretch the calibration to once every two months... However the phone will be obsolete before noticeable shortening of the battery life from doing 30 day calibrations. PLUS THE BATTERY IS REPLACEABLE ANYWAY. So, honestly, who cares?
mystycs said:
What happens if I leave my battery charging over night and I don't unplug the charger once my phone pops up the message telling me to do so. Will my battery overcharge and fail? Or its out safe to leave it plugged on once charging is done?
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
If your battery overcharges and fails, your battery is a danger to you and everyone around you anyway; no matter what charging methods you use. A properly working lithium ion battery cannot be overcharged.
I suggest reading up on how float charging works.
I plugged the phone and go to bed everynight
Emama said:
I plugged the phone and go to bed everynight
Click to expand...
Click to collapse
This is normally what I do, so it charges 5-7 hours a day, I don't normally kill it during the day, but it does get pretty low
novafluxx said:
This is normally what I do, so it charges 5-7 hours a day, I don't normally kill it during the day, but it does get pretty low
Click to expand...
Click to collapse
So u mean plugged in overnight may kill the battery faster?
Emama said:
So u mean plugged in overnight may kill the battery faster?
Click to expand...
Click to collapse
of course. if you always do it.
Sent from my SGH-T959 using XDA App
My phone is samsung j7 prime ....
Yesterday i charge the divise over night ...
Does it will effect my battery?
Hello does this method works for x10 to make battery last longer?
Hi *******, I understand your concern regarding battery life on your Nexus One device. The following steps should significantly extend the battery life on your phone. Please connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged. Disconnect the phone from the charger, and power it off. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green. Disconnect the phone from the charger and power it on. Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green. Disconnect the phone, power it on, and use it. You need to use this sequence only once. If the issue of battery life on our phone persists, I recommend you contact our HTC accessory department directly.
I don't think that exact method will work.
It could just be me, but whenever I plug my phone into the charger when it is switched off, it switches on the phone, which doesn't really help when you're trying to charge with the power switched off.
Mine won't charge switched off either, always turns on.
I just run my battery flat a couple of times, seems to help alot.
Sent from my rooted x10i using Tapatalk.
Modern batteries are not supposed to run flat, from what i've been reading. They stay fresh if charged a little and often. I'm not saying anyones wrong, just what i've heard and read.
Sent from my X10i using XDA App
They don't go flat as you'd expect. Lithium has an operating bandwidth. Say 3.5 to 2.9 thats your battery indication from full charge to low battery. Technically the battery is never fully discharged. As someone posted above, a little and often with these new batteries wins the race.
Sent from my X10i using XDA App
I discovered the solution for X10 calibrate. My bat was showing 100% so i pulled ut the charger, turned the device of, took out the battery, put the charger in and finally putting the battery back. When phone was restarted my battery started charging from 88%. hope it works the same for all!
Edit: after led turning off and bat showing 100% i did the whole procedure again, and again it starts charging from 88%!
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I did it three times in a row now with the same result everytime!
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After nearly 1h since stop charging i'm still on 100% after a few texts, checking xda on tapatalk ofc and surfing a few webpages, i was down at 99% but magically it restored itself when leaving it be.
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Tjotte said:
I discovered the solution for X10 calibrate. My bat was showing 100% so i pulled ut the charger, turned the device of, took out the battery, put the charger in and finally putting the battery back. When phone was restarted my battery started charging from 88%. hope it works the same for all!
Edit: after led turning off and bat showing 100% i did the whole procedure again, and again it starts charging from 88%!
Sent from my X10i using XDA App
Click to expand...
Click to collapse
Gonna try this myself. I'll report back soon.
Edit-
Mine starts to load at 88% too.
Edit2-
When loading, my Battery Indicator states "overvoltage" and shows 4,21 volts. On my second X10 it's only 3,77 and it doesn't say overvoltage. But when I take it off from the charger the voltage drops to 4 volts and stays at 3,77 on my other X10. Bizarre.
Edit3-
Battery life seems to have improved a lot. With the screen at 100% brightness and the sound on on Gameboid I only lost 1% per 10mins or so. Quite an improvement from losing 3% per 5min.
Tjotte said:
I discovered the solution for X10 calibrate. My bat was showing 100% so i pulled ut the charger, turned the device of, took out the battery, put the charger in and finally putting the battery back. When phone was restarted my battery started charging from 88%. hope it works the same for all!
Edit: after led turning off and bat showing 100% i did the whole procedure again, and again it starts charging from 88%!
Sent from my X10i using XDA App
Click to expand...
Click to collapse
thanks for the tip! my guess is that the x10 isnt fully charging the battery?
which is kinda werid because i am using my old X1 batt so it shouldn't be draining
this fast.
ooidort said:
Gonna try this myself. I'll report back soon.
Edit-
Mine starts to load at 88% too.
Edit2-
When loading, my Battery Indicator states "overvoltage" and shows 4,21 volts. On my second X10 it's only 3,77 and it doesn't say overvoltage. But when I take it off from the charger the voltage drops to 4 volts and stays at 3,77 on my other X10. Bizarre.
Edit3-
Battery life seems to have improved a lot. With the screen at 100% brightness and the sound on on Gameboid I only lost 1% per 10mins or so. Quite an improvement from losing 3% per 5min.
Click to expand...
Click to collapse
Nice to see there are actually improvements, i had to rush to my buss while still doing the third cycle so i dissconnected at 96% and it then kept ticking up to 100% on it's own. It sounds worrying though that you get an over voltage allert, maby we should not do this to much if it might damage the battery. But a few cycles just to max it out can't harm?! I belive the 88% -> 100% went faster though for each cycle so this might be a sign that the battery is pushing to the limit little by little. I'm gonna go for a few more cycles to see the results of it.
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Tjotte said:
Nice to see there are actually improvements, i had to rush to my buss while still doing the third cycle so i dissconnected at 96% and it then kept ticking up to 100% on it's own. It sounds worrying though that you get an over voltage allert, maby we should not do this to much if it might damage the battery. But a few cycles just to max it out can't harm?! I belive the 88% -> 100% went faster though for each cycle so this might be a sign that the battery is pushing to the limit little by little. I'm gonna go for a few more cycles to see the results of it.
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Click to expand...
Click to collapse
Yeah, well I had only done two cycles when I noticed the over voltage and stopped there. It seems fine at the moment, temps are normal etc.
I just did one "calibration" again and i actually played around so much with my phone today so when i got home it was on 10%, charged it to 100% and when doin the procedure it reset the battery gauge to 96% rather then the 88% i got earlier.. i wonder if it has any connection to my unplugging the phone at 96% this morning.... hmm, i just don't get this. hehe
Edit: second cycle now and i'm back to charging from 88%.
Thanks for all your constructive ideas. Im also worrying about the battery damage because this is not an official measure. I'll try a few cycles however.
Can you please advise if the coming 2.1 will bring X10 extended battery life?
tried the cycle, first cycle went down to 92%, didnt take long for 100%, second and third she rebooted at 100, sitting at 4.201volts stating overcharge. will update tomorro with a full days use.
I honestly can not tell if my battery has improved from this, but i'm a very inconsistent user
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i also cannot see a difference yet although i used my x10 an obscene amount today...
Sent from my X10a using XDA App
I haven't tried this calibration by taking out the battery when full and putting it back in thing yet, but I have gotten over voltage condition when recharging anyway. It occurs in the 90% and higher region.
Usually, my voltage reaches 4.21V at 100%.
I have very good battery life for a smartphone; I think mostly due to the R2BA020 update for Canada/Rogers. Also, I turn off APN connection most of the time. I did a couple full discharges early when I got the phone and don't know if that had an impact.
Silly22 said:
I haven't tried this calibration by taking out the battery when full and putting it back in thing yet, but I have gotten over voltage condition when recharging anyway. It occurs in the 90% and higher region.
Usually, my voltage reaches 4.21V at 100%.
I have very good battery life for a smartphone; I think mostly due to the R2BA020 update for Canada/Rogers. Also, I turn off APN connection most of the time. I did a couple full discharges early when I got the phone and don't know if that had an impact.
Click to expand...
Click to collapse
So this should meen that the battery is always charging at an overvoltage wich would also meen doing this cycle should not harm the battery more then normal.
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Working
Tjotte said:
I discovered the solution for X10 calibrate. My bat was showing 100% so i pulled ut the charger, turned the device of, took out the battery, put the charger in and finally putting the battery back. When phone was restarted my battery started charging from 88%. hope it works the same for all!
Edit: after led turning off and bat showing 100% i did the whole procedure again, and again it starts charging from 88%!
Sent from my X10i using XDA App
Click to expand...
Click to collapse
Used this did it three times and after the third time on reboot battery on 100% see how long my battery lasts now
Edit-Worked great but then had troubles with ROM so had to reflash. Now when I try this phone just goes into flash mode when USB is plugged in even before the battery. Help?
[Q] Wifi Tether: Subject to $15 T-Mobile Charge?
Curious about this. Currently I'm connected to my laptop for the past 15 min just fine; no alert came up that said I had to get the $15 fee that T-Mobile charges for the "privilege" of tethering on my current plan. Does that mean that an unlocked phone isn't subject to T-Mobile's tampering?
If so, is this the only value for rooting right now? I don't see any other need for root with this phone except if it fools T-Mobile.
Thanks in advance for your answers.
I know there are numerous threads about battery life, but this one isn't about the life itself really.
I can charge my phone to 100%, but when I unplug it, the battery indicator shows 97% right away. I plug it back in, rinse and repeat, and get the same issue. I even tried charging with the phone off.
Ha anyone had luck with using a full 100%?
allen099 said:
I know there are numerous threads about battery life, but this one isn't about the life itself really.
I can charge my phone to 100%, but when I unplug it, the battery indicator shows 97% right away. I plug it back in, rinse and repeat, and get the same issue. I even tried charging with the phone off.
Ha anyone had luck with using a full 100%?
Click to expand...
Click to collapse
This is normal, search some threads
slowz3r said:
This is normal, search some threads
Click to expand...
Click to collapse
I see that some people don't get to 100% during the actual charge process, but haven't seen my issue yet. I'll keep looking. So many of these threads...thanks.
Just trying to figure out whether it's worth going back for another phone or battery. What would you do?
Id keep it, there was an article posted in one of the threads stating why phones do this...the N1 did a similar thing where after it charged going from 100-96 percent went really quickly
i would equate it when you buy a 16 gig SD card and it shows as 15.6 gigs
Same thing here... pretty sure it's happening to most people.
Read this: http://byrong.com/PowerTesting/
allen099 said:
I know there are numerous threads about battery life, but this one isn't about the life itself really.
I can charge my phone to 100%, but when I unplug it, the battery indicator shows 97% right away. I plug it back in, rinse and repeat, and get the same issue. I even tried charging with the phone off.
Ha anyone had luck with using a full 100%?
Click to expand...
Click to collapse
Mine did this until I calibrated the battery. Charged it to 100%, then drained it all the way. Charged it back up to 100%, and now not only does the battery last longer, but the percentage seems to go down in a more linear fashion.
Read on...
http://www.androidpolice.com/2010/1...bump-charging-and-inconsistent-battery-drain/
Sent from my GT-I9000 using XDA App
brianbrain said:
Mine did this until I calibrated the battery. Charged it to 100%, then drained it all the way. Charged it back up to 100%, and now not only does the battery last longer, but the percentage seems to go down in a more linear fashion.
Click to expand...
Click to collapse
Same here, I've done this two nights in a row, but no change.
Thank you for the links, guys. Pretty insightful actually. I've got it charging right now at 99%. As soon as it hits 100%, I'll take it off and see if it drops instantly. I'm guessing it shouldn't as it JUST hit 100%. But we shall see..
Thanks again!
Same issue here afetr the caliberation and all
I really wouldnt worry about it guys, not like magical unicorns are eating your percentages
Well...I mean, it's not something anybody is "worried" about, but it does suck because I use my phone heavily as I'm in the IT field ... so every percentage counts. After I just unplugged, it went to 99% which my N1 did as well. I'm fine with 99%, but 97% seemed a bit low.
Full charge oddity
When the phone has been switched off and charging the phone shows the fully charged icon on screen when charging appears to be done. Battery Indicator Pro displays only a 95% charge when the phone is switched on. The same happens when the phone is on and being usb charged. When 100% charge is shown and the usb cable is removed the charge is then shown as 95%. This does not happen on my other devices running 2.2. They will show 100% or 99%. A device design or 2.3 bug?
Read this whole post:
http://forum.xda-developers.com/showthread.php?t=871051
The epic 4g has this problem. I think its something with samsung. You have to unplug it, plug it back in, let it charge to full again and rinse repeat until its really at 100%
Then reset your battery stats in cwm
Sent from my SPH-D700 using XDA App
As noted in the stickied FAQ and further discussed in the link provided by nxt (Beat me to it!), this is by design folks.
unremarked said:
Q: I unplugged my phone, and my battery dropped from 100% to 95% immediately, or it won't/takes along time to charge past 99%, what gives?
This is by design. Your phone will slow down and eventually stop pulling charge at or slightly greater than ~95% regardless of what your battery indicator says. This is to extend the overall life of the battery, as constant 100% to 0% charge/discharge cycles will cause it to fail prematurely. If you're interested in really pushing it to 100%, you can use a technique that is called "bump charging" and is better detailed here: http://www.androidpolice.com/2010/12...battery-drain/
Click to expand...
Click to collapse
<- Link has more or less the same info as nxt's.
maybe we need multiple FAQ stickies in this board..
Weird battery reading
My Nexus S was at about 16% when I put it on the charger then I did a quick reboot and it said it was at 52%. I unplugged it, powered off, pulled the battery, then rebooted and it read 28%. Even that is hard to believe after less then 5 minutes of charging. Has this happened to anyone else?
Stock 2.3.1 unrooted
Sent from my Nexus S using XDA App
deyna said:
Has this happened to anyone else?
Click to expand...
Click to collapse
Yes, that has been reported by a number of people. It has happened to me as well when rebooting while charging. Nothing is wrong with your battery though, it just must be a battery stats bug.
Good to know. Thank you for the prompt reply
Sent from my Nexus S using XDA App
Ok, I never did this before, but my phone was at 100% charge and I decided to turn it off and charge...... Well it took about 1 1/2 hours and the light finally turned green. So I took it off the charger and plugged it back in and now its been charging for over 2 hours and the light is still red!!
I wonder if this is why my phone was dying so fast. I cant believe that even though my phone said it was at 100% its been charging for over three hours OFF and its still going.
This is just crazy.
I found on the evo forum, can't remember the link, that our batteries have different cells. Charge your phone for up about 6 to 8 hours, while on, turn it off when fully charged, then unplug charger and plug charger back in when led goes off and charge until led turns green again. Repeat that process of unplugging charger until led goes off and plugging back in until green a total of 10 times. From what I read, it's supposed to help improve battery life. I haven't tried it myself so I can't verify it works.
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jbroyles_23 said:
I found on the evo forum, can't remember the link, that our batteries have different cells. Charge your phone for up about 6 to 8 hours, while on, turn it off when fully charged, then unplug charger and plug charger back in when led goes off and charge until led turns green again. Repeat that process of unplugging charger until led goes off and plugging back in until green a total of 10 times. From what I read, it's supposed to help improve battery life. I haven't tried it myself so I can't verify it works.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Thats exactly why Im doing it. I had an evo before and did this, but it never charged for more than 15 min when it was off!
jbroyles_23 said:
I found on the evo forum, can't remember the link, that our batteries have different cells. Charge your phone for up about 6 to 8 hours, while on, turn it off when fully charged, then unplug charger and plug charger back in when led goes off and charge until led turns green again. Repeat that process of unplugging charger until led goes off and plugging back in until green a total of 10 times. From what I read, it's supposed to help improve battery life. I haven't tried it myself so I can't verify it works.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
I've also read bump charging like that can be seriously detrimental to battery health over time...besides this phone doesn't need it...just recalibrate the battery by letting it die until it won't turn on, then I like to pull the battery for 30 seconds to make sure it really resets but not sure its actually necessary....then charge it while off til the light turns green...I usually unplug before I turn it back on....I've gotten pretty stellar battery life with moderate use since doing that and rooting and removing bloat helps even more....like 25-35 hours (will be less if you use it heavily, tons of videos and games will kill it quicker, but even with reasonable amounts of games and vids you can hit 25 hrs for sure)....I've read doing this about once a month is good but letting it die too often is bad too
StAlphonso said:
I've also read bump charging like that can be seriously detrimental to battery health over time...besides this phone doesn't need it...just recalibrate the battery by letting it die until it won't turn on, then I like to pull the battery for 30 seconds to make sure it really resets but not sure its actually necessary....then charge it while off til the light turns green...I usually unplug before I turn it back on....I've gotten pretty stellar battery life with moderate use since doing that and rooting and removing bloat helps even more....like 25-35 hours (will be less if you use it heavily, tons of videos and games will kill it quicker, but even with reasonable amounts of games and vids you can hit 25 hrs for sure)....I've read doing this about once a month is good but letting it die too often is bad too
Click to expand...
Click to collapse
I tried that and for some reason while I was at school it would lose about 15% battery life while I was in class for about 1 1/2 hours with no use at all.
I use the tunein app while at work and I can start at %100 and after about 2 hrs it's down to %20
Ok, so its been like 10 hours the light turned green once I unplugged and plugged back in and the light stayed red for another two hours. I gave up and turned it on while it was red..... Battery was at 96%..... Wtf
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when i charge my batt, i never charge it above 95%, and it actually last 2-3 hrs longer than a full charge.
Also if you notice, when u unplug it from a full charge, within the first 10-15min it goes down to 95-90%...
what im assuming is the phone over estimates its charge, and ends up over charging. then it has to let off the excess?? psh idk im only guessing based on observing
This article helped me a lot:
http://phandroid.com/2010/12/25/you...is-lying-to-you-and-its-not-such-a-bad-thing/
^ Shift Faced
They design phone batteries these days so that you do not need to do these crazy tricks. In the past it was useful, but not anymore
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EricSS619 said:
I tried that and for some reason while I was at school it would lose about 15% battery life while I was in class for about 1 1/2 hours with no use at all.
Click to expand...
Click to collapse
Mine would do that too. Take a close look at your time without signal. I notice that I have horrible signal or that I am roaming when I'm in huge lecture halls. You use more battery life when your phone is contantly looking for signal.
Sent from my PG06100 using XDA App
OK guys,
I let the battery on my phone purposely drain completely until the phone shut off on its own. The battery status was at 3% before I let it drain, then I would imagine it went to obviously 0%. So, I took the battery out for about five minutes to cool off, I put everything back, and plugged the phone to a USB port to charge. To my surprise the battery level displayed at 67%. I think something is not correct here. Charging the phone with a micro usb cable from 0% to 67% in a few seconds is not possible. What is that, supersonic charge?
Can someone please explain what is going on here? Could it be the ROM? Is someone having the same issues?
Thanks,
Jose
Samsung Galaxy S 3G
Rooted with Axura 2.3.1.3
The battery may not be calibrated correctly. You can download the Battery Calibration app off the market for free. Charge your phone to 100%, open the app, click the calibrate button, then unplug from the charger. After that let your battery drain completely until your phone shuts off then charge without a break back up to 100%, and you're battery should be accurate.
Sent from my ZenDroid using XDA Premium App
I'll check that. Thanks for the info.
Mine does that all the time, no matter how many times i've calibrated the battery.
Agreed. I have calibrated my battery several times and when I hook my Vibrant to charge, after a few minutes it reads 65% or something of the sort when it was at 10% earlier