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Defective thunderbolt battery?

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!

[Q] Battery Lag?

Hey guys, I have a problem with my Sensation. Whenever I fully charge it and then remove it from the charger, use it for like an hour or two, the phone still thinks the battery is 100% charged. When looking inside the battery usage, it shows the graph with 0s underneath it, while in the previous screen where you see the apps battery usage it says 2h 5m 13s or something like that.
This wouldn't really be a problem, but when I started up Maps Navigation and plugged the charger in the car, it wouldn't charge because it still assumed the battery was 100% charged!
Any of you also having this problem? Thanks in advance!

atticus182 said:
Hey guys, I have a problem with my Sensation. Whenever I fully charge it and then remove it from the charger, use it for like an hour or two, the phone still thinks the battery is 100% charged. When looking inside the battery usage, it shows the graph with 0s underneath it, while in the previous screen where you see the apps battery usage it says 2h 5m 13s or something like that.
This wouldn't really be a problem, but when I started up Maps Navigation and plugged the charger in the car, it wouldn't charge because it still assumed the battery was 100% charged!
Any of you also having this problem? Thanks in advance!
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Does it stay 100% forever? Then you may have the inexhaustible battery... (not sure if this is grammaticaly correct )
I wouldn't consider this a problem. You can download a battery monitoring app from the market and see what's going on with your phone and if the 100% that it's rerporting is correct. Also, check that the battery contacts are clean.

Not sure my phone does that but it can be on half charge then when I reset phone it's gone up a notch. This morning it didn't look like it had charged although it had been plugged in. When I switched it was on orange then it did the charging animation for a few seconds without charger plugged in then stopped on full. Odd.

Mine stays on 100% for a couple of hours too, has done since I got it.
I think perhaps HTC are "cheating" (or using "creative coding", whichever expression you prefer) in the way they report the battery percentage. Make the battery appear better than it is. Just a theory, of course.
This morning it didn't look likeit had charged although it had been plugged in. When I switched it was on orange then it did the charging animation for a few seconds without charger plugged in then stopped on full. Odd
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That happens to me a lot too. Woke up this morning, phone had been charging for nearly 5 hours, but was only on 82%. After a couple of minutes of the screen being on, it had leapt to 100% and stopped charging.
Also, once the battery is below about 20%, it will sometimes drop 2-3% at a time. Odd.

Looks like they totally screwed the battery meter hardware or something in the software. Remembers me of my iPod touch

Experienced the say.. hopefully either it will auto be fine due to charge cycle or via updates
Sent from my HTC Sensation Z710e using XDA App

The Battery driver that LG used for the G2X has the same problem,a simple reboot fixes it,hope this helps "temporarily" that is.Cheers

Not just the sensation - my wildfire does the same yet my galaxy tab doesnt
Sent from my GT-P1000 using XDA App

sjgore said:
Mine stays on 100% for a couple of hours too, has done since I got it.
I think perhaps HTC are "cheating" (or using "creative coding", whichever expression you prefer) in the way they report the battery percentage. Make the battery appear better than it is. Just a theory, of course..
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Thanks for your answer, so it's probably a general problem that may be fixed by either HTC or the Cooks that make ROM's for our beautiful new phones

Can you tell me how long it takes for your phone to fully charge?My phone needs 3-4 hours to fully charge..is this normal?!

Hmm mine doesn`t lag but it takes times to charge. Usually with my hd2 take around less than 2 hours to fully charge now with sensation around 3 hours
Sent from my HTC HD2 using XDA App

Using it almost half an hour,battery felt from 100% to 99%...And I checked the battery useage,it isn't wrong..
Official Asia ruu 1.28.707.2
Although it is dual core,I think the battery life is much better than DHD..
Sent from my HTC Sensation Z710e using XDA App

I received my phone yesterday and charged it for 4-5 hours throughout the day. Last night it was close to 100% while I was playing with it (off the charger). I then charged it over night for 9 hours. This morning the battery says it's at 50% but has 15 hours left.
Weird :\

Charge the battery with the power turned off overnight, in the morning unplug the charger, turn the phone on, and shutdown again, and plug the charger back for 30
mins phone still turned off. After that start using the phone normally, this way you calibrate the phones battery meter properly.

EnhancerFIN said:
Charge the battery with the power turned off overnight, in the morning unplug the charger, turn the phone on, and shutdown again, and plug the charger back for 30
mins phone still turned off. After that start using the phone normally, this way you calibrate the phones battery meter properly.
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Thanks mate! I'll do that tonight

Bump Charging has helped!

ok, so I'm running faux's rom and I have run CM 7. I have tested this a few times and each rom and it seems to help improve battery life.
Since the drivers are screwy I noticed when I charged my phone it would say 100% but I would unplug it and it would drop down to 97% right away. I think the lower number is the accurate one, So the battery really isnt getting fully charged because the phone thinks it is so of course it will die sooner
So what I did was let it charge to 100% then unplugged it, it went down right away. I plugged it back in and it started charging again, in a few minutes it showed 100%, I unplugged and it showed 97%, so I kept repeating this then eventually I unplugged and it was 98%, then eventually 99%. After doing this my battery lasted a lot longer. I usually have keep an extra battery on me and usually have to switch but for the first time my g2x lasted the whole day! So give this a shot.. it could help if you suffer from really bad battery life.

Off topic.
Im From Southern California...be visiting New York on Monday. Good stuff...small world some times.

could unplug, then turn off, plug in and charge while off for a while, the unplug and turn on, then plug back in and let charge. then wipe batt stats and unplug. works for me.

I have one extra battery. I never charged my phone through the charger it came with. I always charge my battery with the portable charger. No doubt the portable charger takes 6-8 hours to fully charge my battery, but on the upside my battery lasts for more than a day.
Sent from my LG-P999 using XDA Premium App

I noticed a similar thing recently. I generally charge my phone overnight while I'm sleeping and use it for an alarm clock. One morning I decided to reboot my phone (my experience is that it needs a reboot every couple of days or various things stop working) before I got up, so I powered it down, still plugged into the charger. I then tried to power it on, but instead of the boot screen I got the device-off charging animation, indicating that it wasn't fully charged, even though it had said 100% before I powered it off. After letting it sit and charge while off for another hour or so, I booted it, and I think I got exceptionally long battery life that day (although my days are all so different it's hard to compare one to another).

I think bump charging does help, but its not good for your battery in the long run
Sent from my LG-P999 using XDA Premium App

c19932 said:
I think bump charging does help, but its not good for your battery in the long run
Sent from my LG-P999 using XDA Premium App
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well hopefully they fix the driver issues so we wont have to do it too much longer One can hope right? hahaha

Weird battery glitch.

So, got this weird glitch. I'll have say 30% of my battery left and I'll power cycle and suddenly I'll have something like 4% left. And power cycling doesn't help or anything. And plugging it in just charges it from that 4%. Anybody got anything?
Sent from my SAMSUNG-SGH-I997 using xda premium

Kevinr678 said:
So, got this weird glitch. I'll have say 30% of my battery left and I'll power cycle and suddenly I'll have something like 4% left. And power cycling doesn't help or anything. And plugging it in just charges it from that 4%. Anybody got anything?
Sent from my SAMSUNG-SGH-I997 using xda premium
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Just thought about this. I should probably let you know I'm on the latest official stock.
Sent from my SAMSUNG-SGH-I997 using xda premium

Im runnings the official Roger's GB ROM on my Infuse ATM and I've had similar issues. Mine goes a bit deeper though.
When I first got the phone, it wouldn't charge to 100%, whether it be on or off. When the phone finally charged to 100%, the second you unplug it, the battery widget I had and the built in battery meter on the phone said it was at 80%.
While using the battery, it would drain, sometimes suddenly dropping from 40% to 10%. The only way to get the phone to charge to 100% while its off is to charge it for about 8 hours or overnight. Even then, upon bootup, the phone read anywhere between 80%-85%
This is the OEM battery. Im going to try my luck with a battery off eBay that claims to be "OEM", but so far charging for 7 hours straight with the phone off, it wasn't able to reach 100%.
So im hoping it's not the phone itself. Ive charged the phone with various charges, usb cords, and used juice plotter to keep track of things. Definitely something fishy going on because my graphs always show a sudden jump from 85% to 100% in a span of less than a minute =\

Kevinr678 said:
So, got this weird glitch. I'll have say 30% of my battery left and I'll power cycle and suddenly I'll have something like 4% left. And power cycling doesn't help or anything. And plugging it in just charges it from that 4%. Anybody got anything?
Sent from my SAMSUNG-SGH-I997 using xda premium
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I don't think it's b/c of the rom your on, happened to me when my phone was stock. I tried to let it die, but once it hit zero percent, it just kept going till the "true" battery percent was drained. Im on S7 now and it still happens occasionally..

[Q] Generic Android Battery Problem

My SGH-S730m (no device forum for this phone yet) battery percentage was at around 80% when I turned it off. It was placed in a pocket with another device. I can 100% confirm it was off for a complete 4 hours.
When I turned it on, the battery level was at 5%.
The battery still charges, the phone still works. The battery has not exploded yet, and is currently at 45% charge. I am using samsungs OEM battery (it came in the box with the phone). I have had this phone for just more than 2 months now.
What the heck happened? Is my fuel guage messed up?

Have you ever tried battery calibration?
1. Charge phone to 100%
2. Discharge to 0%
3. Let phone sit for 5 minutes
4. Plug it in without turning the phone on
5. Charge without break to 100%
6. Repeat 2-3 times

I also is same...

RaptorKC said:
Have you ever tried battery calibration?
1. Charge phone to 100%
2. Discharge to 0%
3. Let phone sit for 5 minutes
4. Plug it in without turning the phone on
5. Charge without break to 100%
6. Repeat 2-3 times
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thats the correct !
thx

RaptorKC said:
Have you ever tried battery calibration?
1. Charge phone to 100%
2. Discharge to 0%
3. Let phone sit for 5 minutes
4. Plug it in without turning the phone on
5. Charge without break to 100%
6. Repeat 2-3 times
Click to expand...
Click to collapse
That might be a fix, but im looking for the reason behind this problem.

Does anybody know what went wrong? My phone still works (if that even means anything).

Sometimes it happens that the chip goes mad. It happens with every android phone. You're lucky that you have removal battery. Some devices is difficult to do the above trick. I think when you do a full charge and disconnect the battery from the phone for 5 minutes it will be good again. I'm not kind of advice let battery go to 0 because you can ruin li ion battery with a full discharge.
Sent from my GT-I9300 using xda premium

andronald said:
My SGH-S730m (no device forum for this phone yet) battery percentage was at around 80% when I turned it off. It was placed in a pocket with another device. I can 100% confirm it was off for a complete 4 hours.
When I turned it on, the battery level was at 5%.
The battery still charges, the phone still works. The battery has not exploded yet, and is currently at 45% charge. I am using samsungs OEM battery (it came in the box with the phone). I have had this phone for just more than 2 months now.
What the heck happened? Is my fuel guage messed up?
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How long did you have this phone?
Can't you get it exchange for a new one in case the phone has a problem?

I don't know where you from but in Europe you have 6 months for battery and 2 years for phone.
Sent from my GT-I9300 using xda premium

testadeferro said:
I don't know where you from but in Europe you have 6 months for battery and 2 years for phone.
Sent from my GT-I9300 using xda premium
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What I meant was, if it's still within it's warranty period you should get it exchanged.
If not, swap your battery with someone and see if it's your phone or the battery.

Indeed.
Sent from my Nexus 7 using xda premium

I won this phone for $7 at a stack-em machine. I doubt it has warrenty.

Sorry pal I can not answer that. But try the exchange battery suggestion from the other user. And try mine for calibration.
Sent from my GT-I9300 using xda premium

Is this a one time only issue or did you get that a lot?
One time only can be from a stuck process in your phone
If you get that a lot => try the warranty

wargre said:
Is this a one time only issue or did you get that a lot?
One time only can be from a stuck process in your phone
If you get that a lot => try the warranty
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One time issue. I noticed that the phone was getting really hot (even though it was off).

testadeferro said:
...I'm not kind of advice let battery go to 0 because you can ruin li ion battery with a full discharge.
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Nope, you can't. It reads 0% while actually it's voltage is way above 0mV (actually somewhere above 3V) and that's a preventive so that you can never discharge it even close to full discharge because going over 0.5V below the nominal voltage would ruin most Li-Ion batteries so it simply doesn't even allow you to do that. And besides, from where do you think it draws the juice to blink the LED when you try to turn the phone on after a "full discharge"?
andronald said:
One time issue. I noticed that the phone was getting really hot (even though it was off).
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Click to collapse
You should buy a replacement battery then ASAP, they're pretty cheap these days. You don't want Li-Ion packs overheating and the liquid inside them catching on fire.

Li-ion battery are intended to work between 40 and 100 working below that is in most cases the ruin of a battery. And experts say even 98 % slhould be optimal full charge not evem full.
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testadeferro said:
Li-ion battery are intended to work between 40 and 100 working below that is in most cases the ruin of a battery. And experts say even 98 % slhould be optimal full charge not evem full.
Sent from my GT-I9300 using xda premium
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Can you please quote some sources and prove that this is not just a speculation by yourself? I understand the physics of electricity and the foundations of marketing and economy well enough to say that what you wrote is utter nonsense.

Just read the thread from gokhanmoral from here. On galaxy s3 original development thread.
Sent from my GT-I9300 using xda premium

I already know what the problem is. What I want to know is "what" happened to the battery.
Why, would the battery die so quickly when the phone was off? Why, was my li-ion battery discarging the energy as heat? (which would expain the heat while it was off). Why, does my phone still work?
Years ago, I fried a pocket pc by using a 10A charger instead of the usb 0.5A standard (is it 0.5mA? - I cant remember anymore). The battery didnt actually explode, but it got HOT! Really hot. I came back 10 minutes later to discover that my battery was discharging while plugged in..
I fried my fuel guage hardware. Tried to save it, but there was no way. Even after unplugging the 1 pound beast from the charger, the phone was discharging around %4 every 30 seconds. I learned my lesson from that horrific event (I loved that phone so much).
Now, who "actually" knows what happened to my battery? Anyone? I dont need a fix - so dont bother posting if your going to tell me to buy, sell, or repair, and not tell me why.