[Q] No Power, amber light blinking steadily??? - Droid Incredible Q&A, Help & Troubleshooting

My Dinc is having an issue. It had been charging, although though i think it had stopped for some reason. I was looking at it, making sure I wasn't running a ton of radios/apps and whatnot,when suddenly it just shut down, and now it won't come back on. The amber light is slowly blinking steadily. This has never happened before, and I'm not entirely certain what to do...it won't even let me HBOOT. Someone help plz?!

What kind of charger are you using? The blinking amber light usually just means its charging up from being dead, so you can't turn it on yet. I've had my Incredible use more power than the charger and actually discharge when plugged in. Rare, but can happen. It's not giving you 5 vibrations or anything right?

pull the battery out for a few seconds and it should turn back on

Sounds like your charger is too weak. After doing a modification job on a charger of mine I discovered that the charger was so weak that the phone was actually backfeeding and discharging at a extremely high rate. I recommend a charger of at least 750 mah's. The ones that ship with the phone are 1 amp and work like a charm. Older chargers for lots of other devices are as low as 300 mah's (which will work if the phone is off, but if you're actually doing anything, it's too weak).

gilliduck said:
Sounds like your charger is too weak. After doing a modification job on a charger of mine I discovered that the charger was so weak that the phone was actually backfeeding and discharging at a extremely high rate. I recommend a charger of at least 750 mah's. The ones that ship with the phone are 1 amp and work like a charm. Older chargers for lots of other devices are as low as 300 mah's (which will work if the phone is off, but if you're actually doing anything, it's too weak).
Click to expand...
Click to collapse
thanks for the info..

Thanks guys, it seems to be fine now. I'm not sure the issue, but when looking at the battery stat graph, it should what can only be described as a "plateau-like" droppoff. It wasn't gradual. I flashed the OTA 2.3.4 via Stang's post, said "ehh I forgot I didn't like Sense" and reverted to my nand b/u of CM7.1 RC1. I decided to retain the radio. Now a few hours later, it did that. The only thing I can think of was perhaps the battery stats? Perhaps I didn't have as much charge as I thought? I have since wiped everything, stats included. Seems fine, will update you if anything else happens. And I am on the factory charger(s).

Yeah, sounds possible that your battery stats were all garfed up and your phone thought it was at a much higher level than it actually was. Mine did that after my accidental backfeeding charger. It'd say it was at 87% and then about 20 minutes after being on the charger die, though the % never dropped. After charging it enough to boot it'd say 0%. So yeah, I think it's pretty easy to confuse the battery stats.

Related

Battery charging BUG

Hi every one,
As far i know, there is a BUG on every official ROM for European GSM Touch Pro2.
When your battery get full charged and keeping it plugged to the wallcharger, then your Pro2 start taking the power from your battery and NOT from the charger.
This can be checked by yourself and you will see that even with it connected, the battery in running down charge, till you unplug it and plug it again after some minutes/seconds.
Yeah, I have noticed it as well. Anyone have a solution?
Not a bug. LiPoly's do not like being trickle charged, therefore the charger turns off.
I have not verified it on the TP2 but I suspect that if you let it sit long enough the battery level would drop to some level and the charger would charge it back to 100%.
This is a rather good new if it can manage battery loads cycles...
khaytsus said:
Not a bug. LiPoly's do not like being trickle charged, therefore the charger turns off.
I have not verified it on the TP2 but I suspect that if you let it sit long enough the battery level would drop to some level and the charger would charge it back to 100%.
Click to expand...
Click to collapse
It oughta turn the charger off and run the device from the mains, though, not from the battery. Is it doing that?
godefroi said:
It oughta turn the charger off and run the device from the mains, though, not from the battery. Is it doing that?
Click to expand...
Click to collapse
No it is NOT doing that, so to me it is a BUG.
just thought i would add this
for some reason on saturday i charged my phone via usb/pc and it lasted less than 24 hrs
so on sunday i drained it and charged it vis the plug
its still going noe
72 hrs 23 mins in stanby 30 mins talk and 4 hrs 7 mins use since 17.43 on 18/10/09
is never been this good so i thought it may be the new rom
http://www.batteryuniversity.com/partone-21.htm
Lithium-ion
(Li-ion)
Do charge the battery often. The battery lasts longer with partial rather than full discharges.
Do not use if pack gets hot during charge. Check also charger.
Charge methods: Constant voltage to 4.20V/cell (typical). No trickle-charge when full. Li-ion may remain in the charger (no memory). Battery must remain cool. No fast-charge possible.
Rapid charge = 3h
also i have read some where on xda that once it reaches 100% it'll stop charging
godefroi said:
It oughta turn the charger off and run the device from the mains, though, not from the battery. Is it doing that?
Click to expand...
Click to collapse
You know of any other modern phone that runs off the mains without the battery? None of my last three phones would without the battery.
khaytsus said:
You know of any other modern phone that runs off the mains without the battery? None of my last three phones would without the battery.
Click to expand...
Click to collapse
My Kaiser will. It turns off when you pull the battery, but you can turn it right back on.
Every one is talking about battery and it's components but no one speaks about that with charger pluged in, it should supply power and by pass the battery once it is fully charged like others models do.
sounds like you all need to do warranty exchanges for that lol
Tallpap said:
sounds like you all need to do warranty exchanges for that lol
Click to expand...
Click to collapse
No, what we need is that HTC do what we paid for.
User22 said:
Every one is talking about battery and it's components but no one speaks about that with charger pluged in, it should supply power and by pass the battery once it is fully charged like others models do.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=571606 some people here probably would help
xnifex said:
it's true, once the TP2 hits 100% it stops charging the battery & the usage time will kick in.
Click to expand...
Click to collapse
and on this thread http://forum.xda-developers.com/showthread.php?t=573037&page=4 which a guy says
mattdoyal said:
Just tried my TP2 without the battery and plugged, didn't power on. Why would they take away the ability to power on while plugged in but with the battery removed?? This was and would be a great troubleshooting step. Hey HTC, start building our phones with this option!!
Click to expand...
Click to collapse
i hope this helps
Have in mind that once the battery is fully charged, it never go to charge again till you unplug the cable of your wall/car charger... so what will hapen then???
hello anyone know about the issue with the battery ok when i charge my euro tp2 all night and when i go to start>settings>all settings>system>power i then click on the infomation tab and under last full charge i get "not applicable" and get 0 hours and 0minute for the rest
im running the offical htc 6.5 rom
To me this sounds CRAZY. So people are saying that when the device is fully charged it starts to use its battery, thats just crazy... So basically charging it overnight leaves you with "almost" full battery in the morning...
I havent noticed anything out of the ordinary, and every morning when I come and take my device from the charger the charging light is green (opposed to the orange when started charging) and the battery shows to be 100% full.
I will check this again in the morning as I havent really paid 10000% attention to it, but I think I would have noticed the weird behaviour…
noticed this since day 1. my dash didnt do this. i did notice that a soft reset will resume the charge.
This is normal behavior for battery powered devices.
When it's plugged in, the charge circuit charges the battery.
The device itself always runs off the battery when it's available, this is why some devices won't power on without the battery installed, and many devices won't power on with a failed battery installed.
Laptops do the same thing, though they can switch to AC only without losing their state.
It's a holdover I think from when electronics couldn't switch between power sources fast enough to not lose anything (I remember the original game boy would reset no matter what if you tried to switch between batt and AC). It's possible that cell phones can't make this transition since there isn't really extra space to stuff in the bits that allow this (some large-ish caps).
I've also heard that this reduces wear on the electronics, because the voltage is more reliable, but I've never seen that documented.
kay7 said:
The device itself always runs off the battery when it's available, this is why some devices won't power on without the battery installed, and many devices won't power on with a failed battery installed.
Laptops do the same thing, though they can switch to AC only without losing their state.
Click to expand...
Click to collapse
I don't think this is true for (modern) laptops. All the macbooks and thinkpads that I've owned had a feature that if you plug it in while the battery is above X% (usually around 96) it will not charge. It even gives a message saying "Not Charging" in the battery status. The battery percentage then stays constant no matter how long I use the laptop, so it is not DIScharging either. Therefore it must be running from AC. If it can do that, I doubt they would have it run off the battery as soon as it is charged to 100% on a full charge cycle. I think any time AC is plugged in, a modern laptop will run from AC rather than battery, regardless of whether it is currently charging the battery. However, that's just my theory from personal observations.

[REQ] App to Measure True Battery Charging Level

As you all know, the Evo battery charging mechanism is very quirky. If you are using the stock battery, the mechanism is not THAT bad once you understand how it works. If, like me, you are using the 3500 battery, charging the battery in the Evo is pretty much futile. Reason being, for some reason the Evo still thinks it is charging the stock battery despite the fact that you have a battery that is 2.5 the capacity in it. What this means is, the fully charged green light comes on at about the 65% level and you ultimately have to play a guessing game as to when the battery is actually charged. This is also after calibrating and wiping stats and doing whatever dumb HTC/sprint charging "trick" out there.
I am pleading here for someone to create an app that measures the true capacity and charge level of the battery so that we can all, especially extended battery users, know when the battery is actually fully charged. I am positive that there are donations in the project as this app will benefit all Evo users.
Please help and thanks in advance.
+1
I've been looking at the 3500mAh batteries as well, would love to get one, but i flat refuse to pry open my Evo everytime I want a FULL charge (having to resort to wall charging)
I'm not an expert in electrical engineering at all but I'm going to make an educated guess that the charging circuitry is independant of anything that the OS itself can control. Even with the phone 100% off it still has to obey the "rules" of charging that HTC setup. (i.e. charging to 100% then running off battery till it hits 90%) So I don't see how there can be an easy workaround for extended battery users if they want a true 100% charge.
I'd love a bit more juice myself, but like I said the only time I want to have to open up the back is if im upgrading my mSD card. If and until someone can come up with a solution, hell yeah! Until then I will just play with juice defender and hone my battery saving ability via software
I know the Battery Time app you can put in how big your battery is. Just select other when choosing your phone.
Sent from my PC36100 using XDA App
in for progress on this.
so tell me even though the phone thinks the battery is charged, does it stop charging it too?
If I remember correctly that may have to be done in the ROM/kernel, there is most likely a charging timer somewhere in there that stops it for safety reasons.
When changing the timer remember that the batteries are actually closer to 2800mAh than 3500, you don't want to overcharge it.
http://batteryboss.org/
Jsimon9633 said:
in for progress on this.
so tell me even though the phone thinks the battery is charged, does it stop charging it too?
Click to expand...
Click to collapse
No it continues to charge which is even more nonsensical and adds to the frustrating guessing game. Seidio recommends that you keep the phone on the charger for 2-3 hours passed the time that the light turns green. Again, more guess work.
xHausx said:
If I remember correctly that may have to be done in the ROM/kernel, there is most likely a charging timer somewhere in there that stops it for safety reasons.
When changing the timer remember that the batteries are actually closer to 2800mAh than 3500, you don't want to overcharge it.
http://batteryboss.org/
Click to expand...
Click to collapse
I think you are referring to wiping battery stats. I have tried this on several Roms and kernels to no avail. Also, if you aren't rooted, how would you go about wiping stats? An app would help a lot of people out.
Also after doing some more research and testing, any app that provides battery level that I have used including OS monitor, spare parts, etc. will basically spit out what the OS is telling it and not measure the true level. Unfortunatley, the OS is stuck on stupid and we are back to the original issue.
MSmith1 said:
I think you are referring to wiping battery stats. I have tried this on several Roms and kernels to no avail. Also, if you aren't rooted, how would you go about wiping stats? An app would help a lot of people out.
Also after doing some more research and testing, any app that provides battery level that I have used including OS monitor, spare parts, etc. will basically spit out what the OS is telling it and not measure the true level. Unfortunatley, the OS is stuck on stupid and we are back to the original issue.
Click to expand...
Click to collapse
I don't believe it is possible for an app to do what you are wanting, the charging process is controlled by the operating system itself and is built into the kernel.
There are two main steps to charging a li-ion and the first one finishes when the battery is around 70% full. So either something is causing the phone not to start the second part of the process, it is just timing out thinking that battery should have been by that time, or, since the batteries have circuitry inside of them, it could be the battery itself that is doing it. Have you tried charging your phone through your USB port? It takes longer but the battery may not like how much power the wall charger pushes through it.
Edit: I think I misread your OP, does your phone stop charging when it says it's full or does it keep charging?
xHausx said:
I don't believe it is possible for an app to do what you are wanting, the charging process is controlled by the operating system itself and is built into the kernel.
There are two main steps to charging a li-ion and the first one finishes when the battery is around 70% full. So either something is causing the phone not to start the second part of the process, it is just timing out thinking that battery should have been by that time, or, since the batteries have circuitry inside of them, it could be the battery itself that is doing it. Have you tried charging your phone through your USB port? It takes longer but the battery may not like how much power the wall charger pushes through it.
Edit: I think I misread your OP, does your phone stop charging when it says it's full or does it keep charging?
Click to expand...
Click to collapse
The phone continues to charge. Based on what you are saying and my own findings, it seems the phone is reporting that initial charge at 70% as 100% when using the 3500 battery.
I am in the midst of testing some things right now related to all of this and will report back.
MSmith1 said:
The phone continues to charge. Based on what you are saying and my own findings, it seems the phone is reporting that initial charge at 70% as 100% when using the 3500 battery.
I am in the midst of testing some things right now related to all of this and will report back.
Click to expand...
Click to collapse
Thanks keep us up to date. I bought this battery too so very interested in any possible solution you find.
Basically the os says its 100% when in reality its not even close, more like 65% right?
Jsimon9633 said:
Thanks keep us up to date. I bought this battery too so very interested in any possible solution you find.
Basically the os says its 100% when in reality its not even close, more like 65% right?
Click to expand...
Click to collapse
Yes. 10char.
how does the phone read the charge or does it?
maybe a glitch in regulating the flow?
any software determine could do this?
mine charges a good 8-10 hrs a night
never had a phone that needed more
anyone had to buy a standard battery replacement and get better battery?
software or hardware?
Jsimon9633 said:
Thanks keep us up to date. I bought this battery too so very interested in any possible solution you find.
Basically the os says its 100% when in reality its not even close, more like 65% right?
Click to expand...
Click to collapse
Looks like I failed again. This issue really needs attention from someone well versed with how the Evo charges the battery and how to tweak the reporting deep in the android system. Wiping battery stats in recovery does not solve this issue. We need a SetBat!
I got curious so I looked at the evo's source and found that it stops charging when it thinks the battery is full and doesn't start again until it drops down to 80%. Although it should start charging again if you unplug it and then plug it back in. To fix it you will need someone to make drivers for your battery and incorporate it into a ROM.
Sorry I can't help more but compiling ROMs is still a little bit over my head right now.
xHausx said:
I got curious so I looked at the evo's source and found that it stops charging when it thinks the battery is full and doesn't start again until it drops down to 80%. Although it should start charging again if you unplug it and then plug it back in. To fix it you will need someone to make drivers for your battery and incorporate it into a ROM.
Sorry I can't help more but compiling ROMs is still a little bit over my head right now.
Click to expand...
Click to collapse
Very interesting. The problem here is, the Evo stops charging when it thinks the stock battery is at 100 even though you have an extended battery in it.
I guess we would need a talented dev to compile a fix. Hoping that this thread can bring some attention to that. Looks like we have progress already!
Here are my findings from the monitoring I was doing earlier. It's a lazy Saturday for me so I actually had the time to watch the battery charge. For background info, I am using CM6RC2 and Snap 7.01 with the Seidio 3500 battery.
I let my battery deplete completely last night and woke up to charge it. Knowing full well that the Evo does not charge the battery correctly, I did some research into how I could properly monitor the charge on my own. What we are basically looking to do is to charge the battery to or close to 4.2v. You can monitor this yourself using any battery monitoring program. I was using spare parts.
What I saw was, the battery would charge to what the Evo thought was 100 or close to 100 for the stock 1500 battery, the green light came on and the reporting stats of charge/voltage stopped there. The phone was reporting a constant charge of 100 and the voltage froze at 3.9v despite the fact that the battery was actually charged to around 60-65%. These numbers froze there for a long period of time. The 100/green light never went away and the freeze in voltage reporting lasted about 1+ hours. The freeze at 3.9v was basically the OS reporting the 3.9v in error because it still was thinking that the stock battery was in the phone. The actual battery charge level was neither 100 nor 3.9 volts. Like I said, the voltage stayed at 3.9 for a while, lets say an hour+, and then it started charging up again to 4.2. I saw all of this happen in spare parts. The highest I saw the voltage get was 4207. It took around 5 hours to get to this point. Once it was close enough to 4.2, I rebooted into recovery and wiped my battery stats using Clockwork. On reboot, the battery was actually around 95%. Now I could have plugged the phone back in and repeated they process above but, as this point I basically gave up knowing that I couldn't really go through this type of process ever again because I never have time to sit there and watch a battery charge.
So back to point of this post, we need someone to find a way to have the Evo report true battery stats for extended batteries and not continually have the phone think that it is charging the stock battery. I don't know if it can be done in an app, in a rom, or in a kernel but, however we can get this done, it would be more than amazing.
I have never had a problem with my 3500 Seidio Battery in terms of charging.
I have never had less than 90% charge when I leave for work. But as it has been pointed out multiple times, this phone charges till 100% and then works off the battery until it hits 90%. In essence, this phone will never be charged to 100% unless you do it while turned off or quite possibly with the battery out of the phone.
Next time you think you don't have a full charge, take it off the charger, turn it off and then back on. Then stick it back on the charger, you will see that the charge is down to say.... 93% then it should start charging again. But too be honest, on a 3500mAh Battery, I really don't see the need. If you really need 100%, the best way to achieve this is with the phone turned off.
there are people in evo forums across the net that would donate en masse for this once word spreads. if it needs to be unique to each battery, the four most used are stock, 1750, 3000 chinese (what I have), and 3500 seidio. I would definitely donate for a true fix
Brutal-Force said:
I have never had a problem with my 3500 Seidio Battery in terms of charging.
I have never had less than 90% charge when I leave for work. But as it has been pointed out multiple times, this phone charges till 100% and then works off the battery until it hits 90%. In essence, this phone will never be charged to 100% unless you do it while turned off or quite possibly with the battery out of the phone.
Next time you think you don't have a full charge, take it off the charger, turn it off and then back on. Then stick it back on the charger, you will see that the charge is down to say.... 93% then it should start charging again. But too be honest, on a 3500mAh Battery, I really don't see the need. If you really need 100%, the best way to achieve this is with the phone turned off.
Click to expand...
Click to collapse
I assume that you keep your phone charging all night?
If so, this isn't really for people who do that. This is more for people looking to charger their phone to at or near 100 on the go, at work, etc.
Also, 10% on the extended battery is probably a difference of at least an hour more battery. I'd say even more. That's a lot of time to me personally.
cabbieBot said:
there are people in evo forums across the net that would donate en masse for this once word spreads. if it needs to be unique to each battery, the four most used are stock, 1750, 3000 chinese (what I have), and 3500 seidio. I would definitely donate for a true fix
Click to expand...
Click to collapse
Agreed. I'd rather donate money to a true fix than buy an external charger. I have funds to donate for this READY TO GO ASAP.
I think this is a firmware related issue.. I cannot count how many posts and different senarios (batteries, chargers, rom's) I have read, yet still this issue remains. The only things I have ran across that actually works is:
1. Charging the battery externally (wall charger, dock, or etc)
2. Charging phone while phone is turned off.
3. Bump charging (aka: battery conditioning, battery syncing, "plug/unplug method")
4. Clearing the battery stats

Evo not charging,or taking very long to charge

Ever since I flashed Ultimate Droids Rom my battery has started to take alot longer to charge. I throw it on the charger at 6%, and check half an hour later to see that its gone up maybe 1% or none!
I've tried to nandroid to past Roms that haven't had this problem but they all seem to be the same.
Could it be my Evo,or my Battery?,
Sent from my HTC EVO
It might not be your battery nor your phone. It might just be the rom you put. take it off and then see if your battery improves. If you know someone who has an evo, maybe an incredible since it uses the same battery try putting theirs in and see if it makes a difference. That way it will save you some time from completely restoring the rom.
Okay I'm pissed off. I took my phone off this morning at 28% ,so I throw it on the charger turned OFF,30 minutes later 8% l
WTF is happening!?
Sent from my HTC EVO
You are being punished for being a bad person.
Lol, seriously, my guess is any number of things:
1) Check to make sure your red charging light comes on when you plug in.
2) Make sure your charger isn't plugged into a socket controlled by a lightswitch you have turned off.
3) Make sure there are no micro-breaks in your charging cord's casing that would be causing a short (this happened to me - got new charging cord, problem solved).
4) Make sure your charger is rated at at least 5 volt / 800 ma.
5) Your usb port may have gone bad.
6) Go into Clockwork Recovery and clear your battery stats under "Advanced Options".
7) Your battery is cooked (happens - hardware breaks).
8) It could just be a coincidence that this is happening to you after you flashed UD. I was just over at their forum and this doesn't seem to be a common problem.
I have an EVO and am running the UD 12/3 nightly and it is flawless. 2.3 was a bit buggy. The new nightly is better.
same problem
Has any one figured out what's the problem with EVO and the battery charging situation? A couple weeks ago I noticed my battery wasn't charging, I turned the phone off and on then it would charge...now it won't charge at all WTF? I got a red light indicating my phone is plugged in, I got a thunder bolt in the battery window indicating charging, but the green bar is not moving while charging anymore. If I unplug the phone it will shut down. ANY AND SUGGESTIONS ARE WELCOMED...THANKS IN ADVANCE
EVO not charging fully and draining fast
Okay, here's my deal. My friend and I both have EVO's. We both are running Vaelpaks 3.1 rom. We both have the Battery Monitor Widget. When I charge my battery, it charges to 100% and 0mA. When my friend charges his phone, it reads 100% but the mA is not going to 0mA. Instaead it bounces between 64mA (red) or 252 mA (green). When he unplugs the phone, it drops 10% within minutes and continues to drop at a much faster rate than my phone.
Here's the kicker, when I pull his battery out of his phone and charge it in my phone, it charges to 100% and 0mA. then we put it back in his phone and it works great, until he charges it again. It charges the same way regardless of the rom we run. We have loaded Manilla Carbon by xxbabiboi228xx, VaelPak 3.1 and even stock and his phone won't charge to completion and drains quickly. Also, we are both rooted with Urevoked. We may switch to S on and see about switching the phone with Sprint unlees anyone has some sort of idea about whats going on with his phone. It may have something to do with the Hardware Version through settings/About Phone. My hardware version is 0003 and his is 0002. Thanks
you guys running the same kernel too?
glenzos said:
Okay, here's my deal. My friend and I both have EVO's. We both are running Vaelpaks 3.1 rom. We both have the Battery Monitor Widget. When I charge my battery, it charges to 100% and 0mA. When my friend charges his phone, it reads 100% but the mA is not going to 0mA. Instaead it bounces between 64mA (red) or 252 mA (green). When he unplugs the phone, it drops 10% within minutes and continues to drop at a much faster rate than my phone.
Here's the kicker, when I pull his battery out of his phone and charge it in my phone, it charges to 100% and 0mA. then we put it back in his phone and it works great, until he charges it again. It charges the same way regardless of the rom we run. We have loaded Manilla Carbon by xxbabiboi228xx, VaelPak 3.1 and even stock and his phone won't charge to completion and drains quickly. Also, we are both rooted with Urevoked. We may switch to S on and see about switching the phone with Sprint unlees anyone has some sort of idea about whats going on with his phone. It may have something to do with the Hardware Version through settings/About Phone. My hardware version is 0003 and his is 0002. Thanks
Click to expand...
Click to collapse
It's the kernel, when your battery reaches 100% its supposed to stop charging but SBC kernels will continue to trickle charge. Li-ions aren't supposed to be trickle charged so they will wear out much quicker and possibly become unstable.

Battery @ 0 = doom?

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)
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.

[Q] Phone Charging Question

Problem:
I have been reading as many posts as possible but I haven't come across my exact situation. I apologize if this is posted elsewhere.
I am running a rooted Dinc using CyanogenMod 7.0.3. If I charge the phone while it's powered on, the amber led turns green as soon as the battery indicator hits 100%. However, recently I've noticed that if the battery is close to being full, say 90%, and i power it off to charge it, it actually takes longer for the amber led to turn green. It might take 20-30 minutes longer.
I've also noticed the amber light turn green when the indicator only showed 92%. In trying something different I also noticed that if I charge the phone while it's powered on, then turn the phone off, the led goes amber and takes another 20 minutes to turn green again (I might be accidentally bump charging in this example but I'm not sure).
Attempted Solution:
I've read that a battery recalibration might help. I tried one method that requires the battery to be pulled after a full charge, but my phone won't boot while plugged into the wall if there's no battery. Then I tried booting into recovery, where I found an option to reset the battery stats... which I just did about 5 minutes ago.
I'm going to see how things go tomorrow, but is this normal? Has anyone else experienced these things? Thanks.
Logan176 said:
Problem:
I have been reading as many posts as possible but I haven't come across my exact situation. I apologize if this is posted elsewhere.
I am running a rooted Dinc using CyanogenMod 7.0.3. If I charge the phone while it's powered on, the amber led turns green as soon as the battery indicator hits 100%. However, recently I've noticed that if the battery is close to being full, say 90%, and i power it off to charge it, it actually takes longer for the amber led to turn green. It might take 20-30 minutes longer.
I've also noticed the amber light turn green when the indicator only showed 92%. In trying something different I also noticed that if I charge the phone while it's powered on, then turn the phone off, the led goes amber and takes another 20 minutes to turn green again (I might be accidentally bump charging in this example but I'm not sure).
Attempted Solution:
I've read that a battery recalibration might help. I tried one method that requires the battery to be pulled after a full charge, but my phone won't boot while plugged into the wall if there's no battery. Then I tried booting into recovery, where I found an option to reset the battery stats... which I just did about 5 minutes ago.
I'm going to see how things go tomorrow, but is this normal? Has anyone else experienced these things? Thanks.
Click to expand...
Click to collapse
The kernel and the hardware charge it in different ways. That's why there are differences. DInc is famous for ending charging before the battery reads full. There's already a thread on that. there's not much point in getting hung up on how that thing charges. Be glad yours isn't like mine; a battery that discharges faster than it charges. Seriously.
loonatik78 said:
The kernel and the hardware charge it in different ways. That's why there are differences. DInc is famous for ending charging before the battery reads full. There's already a thread on that. there's not much point in getting hung up on how that thing charges. Be glad yours isn't like mine; a battery that discharges faster than it charges. Seriously.
Click to expand...
Click to collapse
Before I had a fast charge kernel (thanks Chad!) Using GPS with the stock VZW car charger, my battery would go down while it was on the charger!
Sent from my ADR6300 using XDA App
On AOSP roms, the LED will turn green at 90% and charge slower from 90%-100%. Perfectly normal, and I think on any rom it will charge slowly from 90%-100% to protect the battery.
The battery will charge further when you turn the phone off, what you described is what's known as bump charging. If you do this, you should notice a slower drop from 100%-90% than usual, because the battery is charged to a "true" 100%. When the phone is on and charging (above 90%), it simply keeps the battery above 90% even if it says it's fully charged, and this is why the inc is notorious for the quick 100%-90% drop.
If you do a bump charge and then clear the battery stats and use the battery calibration app will you need to bump charge again or will it know what the true 100% capacity is and keep the droid lasting longer. Not noticing much of a diffrence when i went from 1300 battery to a 1500. May get a bigger batter that'll fit the stock battery door cause I'm trying to get the best battery life i can get.
Thanks guys, I appreciate the help. I think something else that has thrown me off is that before I rooted the phone I wasn't able to see the actual battery percentage in numbers... all I could see was the battery icon. Things are now making more sense.
After recalibrating my battery I bump charged the other day and I was able to get almost 2 days out of my phone on light usage. Without bumping, I was able to end my day yesterday at 50% under my normal usage. Which is a noticeable improvement. Normally I end the day with about 10-20%. The big test will be once I go back to work next week. The cell reception is real spotty in my classroom, which I know makes the cell radio work harder.
Thanks again.
I found a lot of answers I was having about battery charging in this thread:
Your battery gauge is lying to you (and it's not such a bad thing)

Categories

Resources