I'm having a battery issue. When I charge the battery to 100% then unplug the charger it drops to around 60% within minutes. It won't fully charge when turned off either. I started having these problems after using one of the mini to micro usb charging adapters on one of my mini usb chargers I had lying around. Any ideas would be awesome. Also I did s-off so I don't think verizon will do a warranty exchange. Thanks!
PS I tried searching the forums for an answer but I couldn't find it. I apologize in advance if there is a thread about this that I missed. Thanks!
can you try another battery
vandykky said:
I'm having a battery issue. When I charge the battery to 100% then unplug the charger it drops to around 60% within minutes. It won't fully charge when turned off either. I started having these problems after using one of the mini to micro usb charging adapters on one of my mini usb chargers I had lying around. Any ideas would be awesome. Also I did s-off so I don't think verizon will do a warranty exchange. Thanks!
PS I tried searching the forums for an answer but I couldn't find it. I apologize in advance if there is a thread about this that I missed. Thanks!
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It might be the battery, not the phone.... also, reset your battery "memory" in Rom Manager or Recovery Mod
It does this with both of my batteries and I have reset my batt stats in clockwork mod recovery. Any other thoughts?
Check your CPU usage?
If it really instantly goes from full icon to 60? I would try plugging it back in and see if it'll continue charging. If not, he battery is probably dead. If it does charge, then you've confirmed that deleting battery stats does nothing.
Sent from my ADR6300 using XDA App
it will definitely charge when I plug it in. replacement battery from verizon on the way, if that doesn't work I was told it might be the charging port. Sigh. Thanks for your help guys.
Edit: Changed the title to make the answer easier to find. The battery popup killer mod has nothing to do with why the battery level drops after unplugging, as you will learn when you read the linked article. Now, on to my original post...
Pretty much every ROM for the Epic now incorporates the Battery Full Popup Killer mod at this point, but are we sure there aren't any unintended side effects of it? Is the battery charge state still being recorded to the batterystats.bin file? I know when you delete it through a file manager, or reset the stats through CWM, it does regenerate, but there is a lot more info in that file than just the full and empty charge levels of the battery, so it would be regenerated for the other services that use it.
I've had issues with my battery reporting that it's full, but only showing a charge of anywhere between 94-98%. Now, if my battery were actually defective, and losing capacity faster than normal, the batterystats.bin file should be compensating for that by recording the lower full charge level and adjusting the percent reporting accordingly, but it doesn't seem to be doing that.
So, are we sure the state of the battery is being recorded, even though the popup is being blocked? What else could be causing this issue with so many people reporting that their batteries aren't charging to full?
Questions need to go in the q&a section to keep the development section for pure development. Or as a reply on someones thread/rom. Although I have seen this question raised once before on mammons thread I think. I think the answer was that the battery is not set to charge to 100, and some other technictal details I can't remember. But from a day 1 owner of epic, my phone has never charged above 96-98, it will go to 100, but the second I pull it off charger down to 96-98. Even stock, with no mods to the battery popup notification. And now being on a rom that does have that no pop up notification, so I don't have to get woken up from a vibrating phone, there is no change. I'm sure someone else can give you the more detailed explination though.
Sent from my SPH-D700 using XDA App
I forgot that there was a Q&A thread in the development section, sorry to clutter things up. Thanks for the details, I'll see if I can find the Mammon thread that has the same question in it.
Hopefully this gets moved to the proper section as its a good question. Firon and I did some early work on this mod and I can tell you that we simply aimed at the graphical display and then stopped it from reporting. We didn't alter how it reports %s in anyway. I can also say that this issue is found in a stock epic right out of the box. My feelings are that the actual code for charging the battery is done this way on purpose which is lazy and over cautious imho, maybe they were worried about ruining batteries or even having one explode. Sounds like poor project management in any case.
sent by an Epic4g through the cosmos
OK, after searching through the threads for a little while, I found a very good article dealing with this issue.
http://www.androidpolice.com/2010/1...bump-charging-and-inconsistent-battery-drain/
Basically, the battery is supposed to charge to 100%, and then it stops charging to drop the battery level down to a safe level. It will then periodically charge the battery again to maintain a high (but safe) charge level, but never back to 100%. The batteries used in smartphones today aren't safe to keep at 100%, nor is it good for them (they corrode faster), so the charging system keeps them at a full, but not completely full state during the charging process. The phone will report the battery as being full while plugged in, even though it could be running fully on battery power at that moment and a few percentage points below 100%. It does this to make it easy for regular users to know when their phone is finished charging. It's only when you delve into the details that you start to see that the battery isn't actually fully charged, and start to rip your hair out when trying to figure out why it won't do it.
To sum up the entire article, it's supposed to do that. There isn't anything wrong with your battery, or your phone, it's done to prolong the life of the battery, and so the battery won't explode or catch fire by being held at 100% for too long.
The only time my battery meter reads 100% is when I pop a fresh battery in from my external charger.
Sent from my SPH-D700 using Tapatalk
I should have also added in my last post that bump charging does actually work, but will decrease the life of your battery. The experiment that the author of the linked article concluded that bump charging until the phone actually reads 100% while unplugged increased his battery charge by around 15%. Now, if holding your battery at 100% causes premature corrosion, it only makes sense that holding it at 115% causes corrosion at a greater rate.
If you absolutely must get the most time out of your battery, and are willing to buy a new one later on, go ahead a bump charge the **** out of that battery. The author suggests (and sites battery university as a source) that the best way to go about battery charging is to do several short charges throughout the day, rather than 1 deep charge from 0 to 100%.
Also, the author suggests that you stop obsessing on what the reported charge is telling you, and just use your phone.
Still makes no sense. They could code it to say 100% when its at 95% then so we atleast have the impression that its as full as could be safely. Like I said, over cautious and lazy imho...
sent by an Epic4g through the cosmos
Yeah, I suppose it is, but then it wouldn't be accurately reporting the battery level, which I guess is what Android's goal is. Personally, I'd prefer that if 95% is as much as I'm going to get out of a charge, than Android should just lie to me and tell me it's 100%.
mattallica76 said:
The only time my battery meter reads 100% is when I pop a fresh battery in from my external charger.
Sent from my SPH-D700 using Tapatalk
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same here, was going to say this as well.
yogi2010 said:
same here, was going to say this as well.
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I wonder if that's because the charge process brings the battery to 100% initially, then stops charging. Since the battery is in an external charger, there's nothing to draw power from it, so when it hits 100% and stops charging, it remains at 100% until there's a draw on the power.
I'm curious as to whether or not the user guide for the external charger mentions anything about not leaving your charged battery sit for a certain length of time. Based on the linked article, it's claimed that keeping the battery at 100% is damaging to it.
Migital Warfare said:
I wonder if that's because the charge process brings the battery to 100% initially, then stops charging. Since the battery is in an external charger, there's nothing to draw power from it, so when it hits 100% and stops charging, it remains at 100% until there's a draw on the power.
I'm curious as to whether or not the user guide for the external charger mentions anything about not leaving your charged battery sit for a certain length of time. Based on the linked article, it's claimed that keeping the battery at 100% is damaging to it.
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that's probably true about there not being anything to draw power when it's in the ext. charger. the funny thing is, I will pop in the fresh battery, and it will boot up the phone, and I can even do a several things, and the battery will still be at 100!
I try to take the battery out of the charger as soon as possible once it hits full charge, but I'm not always able to. I don't think there were any instructions wth the charger.... the whole thing was prety minimal: I paid my 12 bucks, or whatever, and never heard from them at all, until 2 weeks later an envelope arrived from China, containing only a charger and 2 batteries, lol.
I have both the Samsung OEM battery charger that they sell in the sprint store, and the cheepo Hong Kong charger that comes with knock off batteries. They both stop charging when the chip in the battery says it's full. Neither one had any documentation. I've seen zero negative effects from leaving any of my 5 oem batteries fully charged for long periods of time. The two knockoff batteries I had both died permenantly after about a month.
Sent from my SPH-D700 using Tapatalk
mattallica76 said:
I have both the Samsung OEM battery charger that they sell in the sprint store, and the cheepo Hong Kong charger that comes with knock off batteries. They both stop charging when the chip in the battery says it's full. Neither one had any documentation. I've seen zero negative effects from leaving any of my 5 oem batteries fully charged for long periods of time. The two knockoff batteries I had both died permenantly after about a month.
Sent from my SPH-D700 using Tapatalk
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dang, i guess i've had better luck with the cheapos.... been running them daily for over 2 months, and can't tell any difference between them and the Samsung battery that came with the phone.
yogi2010 said:
dang, i guess i've had better luck with the cheapos.... been running them daily for over 2 months, and can't tell any difference between them and the Samsung battery that came with the phone.
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When they worked, they worked great. But one day I charged one up and stuck it in my pocket. When I stuck it in my phone, i got nothin. I took it home and put it back in the charger and the indicator light said it was fully charged but it was completely bone dead. Wouldn't take a charge at all. Same thing happened to the other one a couple weeks later. I have yet to have any problems with the oem batteries.
really nice article and it actually makes me feel a lot better. i thought it was attributed to certain ROMs somehow as i feel like i picked the phone up at 100 and it stayed there on some but not others. guess that was all placebo, lol. i think hte best part of the article is right at the end:
If you are someone who can top off your phone on a regular basis, do it. Plug it in when you’re at home. Plug it in when you’re at your desk. As explained by Battery University, "Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory."[2]
peace
Thanks for the informative thread
Sorry if this subject has been beat to death, but i'm new to the EVO. Actually the fone belongs to a good friend of mine. She was told that if her battery gets so low that the fone shut's down, she'll need to bring it to a store for them to get it restarted. This seams wrong. I know with my Droid1, D2, And DInc1, all will power up as soon as they're plug'd in.
Both my friend and i are rather intelligent, and if a sales rep at Sprint can reboot it, so can we. (after all, her is the only fone i mentioned not rooted)
What i'm looking for is:
1. Does this condition really exhist?
2. If so, how do I! reboot it?
Sometimes the Evo's battery will drop so low that it won't charge - it happens fairly often. You'll need to take the battery to a Sprint store so they can boost the battery.
An external wall charger should charge it too. It isn't a given that the battery won't charge after dying completely, it's just a possibility. I have never had it happen to me, but people start threads about it all the time thinking their phone is bricked.
(from... Evo/MIUI/Tapatalk)
I have never heard of this happening and have never had it happen to me. Did a quick search and you may want to have a look at this thread HERE to see if you can find some answers.
plainjane said:
Sometimes the Evo's battery will drop so low that it won't charge - it happens fairly often. You'll need to take the battery to a Sprint store so they can boost the battery.
An external wall charger should charge it too. It isn't a given that the battery won't charge after dying completely, it's just a possibility. I have never had it happen to me, but people start threads about it all the time thinking their phone is bricked.
(from... Evo/MIUI/Tapatalk)
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Exactly what Jane said is correct. It will get so low sometimes that it will need to be "boosted". I have a battery right now that my wife let get so low I can't do anything with it so I just gave her my spare.
It's a known bug look here
Lokifish Marz said:
It's a known bug look here
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No it isn't. Its the protection circuit in the battery. In an undervolt (as in an overvolt) condition the charging circuit shuts down.
As was mentioned earlier, a wall charger can sometimes push the voltage high enough to "revive" the battery. I believe it depends on the battery.
en.wikipedia.org/wiki/Lithium-ion_battery#Safety_requirements
CyWhitfield said:
No it isn't. Its the protection circuit in the battery. In an undervolt (as in an overvolt) condition the charging circuit shuts down.
As was mentioned earlier, a wall charger can sometimes push the voltage high enough to "revive" the battery. I believe it depends on the battery.
en.wikipedia.org/wiki/Lithium-ion_battery#Safety_requirements
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Exactly. Or if you're like me, an aggressive under volter, when you let the battery hit 0 and it auto shuts down, once plugged in, the charging like blinks for a about a minute before it stays solid, which is normal.
CyWhitfield said:
No it isn't. Its the protection circuit in the battery. In an undervolt (as in an overvolt) condition the charging circuit shuts down.
As was mentioned earlier, a wall charger can sometimes push the voltage high enough to "revive" the battery. I believe it depends on the battery.
en.wikipedia.org/wiki/Lithium-ion_battery#Safety_requirements
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I'm sorry I can't link to the secured site bug list for the Evo however I service 10-20 Evo's a week where the owner has let the battery die to the point where the phone won't power or charge the battery. Pull the battery and drop it in a HTC Hero/Touch Pro 2 or external charger and it will charge but simply will not charge in an Evo. This does not affect all Evo's. I'll say again, this is a known bug.
I'm feeling pretty doomed too! I ordered two batteries plus a wall charger from ebay and have been charging it but it = ZERO! Plus I tried to charge the stock battery with the cable, and it still never charged! I thought it was the cord, but when I plug it into the pc, the usb de-bug still comes on. Earlier, I was on the phone with my bf, and dead it went when it was at 81% charged and I was on the phone for no more than 15 minutes. WTF IS WRONG WITH MY PHONE!? Rooted.
I dug out my htc charger, the one that comes with the G2, and after charging to 100% with it the battery drains incredibly fast. It was dead in 4 hours with only 15-20 mins of actual use. My phone just got done charging via PC and everything seems back to normal. Is there something wrong with the htc charger, that it made the battery weak? I hope it didn't do any damage to my phone.
Most likely that charger is garbage. Your best bet would to order one on ebay for 99cents. Thats the kind i use and they are awesome. If your battery presists draining quickly, then you should get a new battery. As far as i know, you havent done any damage to the phone itself.
Sent from my HTC Desire Z using xda premium
After a long time no use, I took my a100 out and charge it, the red led at the power button lighted up but it never turn blue even 10 hours later. I powered it on and noticed the battery level was always 0%, everything else is ok though. If i unplug the charger, my tablet turn off immediately. Then I disassemble it, take the battery out and charger it directly about 10 minutes, then i assemble and turn my tablet on, the battery now is 35% but the problem still the same, it can't be charged, the red led still light though. Is there any body know what the problem is and how to fix it, help me please. thanks in advance.
Sorry for my bad english
Not an answer to you Q but I have to say It's always nice not having a removable battery ......can't we just get a battery door and some AA duracells for old times sake
Sent from my HTC EVO 3D X515m using xda app-developers app
Letting a battery fully discharge is about the worst thing you can do, mostly due to the fact that if the battery voltage drops to low it shuts down to prevent cell damage. Basically the battery is telling the Acer it can't be charged because its damaged.
Short answer - new battery time. If you know someone else with one swap and test.
Tapatalked from my Galaxy S II - CM10