battery good, but always shows battery needs charging! - Android Q&A, Help & Troubleshooting

hey all, i got this phone, i was told just a dead battery. put it on the charger and it never charged up. the screen just showed that i needed to charge the battery. i did the power & volume button trick, and the at&t logo showed up, then went back to dead. so i pulled the battery and tested it for charge. it came back 3.5. then i checked the charging port, and the contact part was broken. put in a new cable & port. still showing battery needs charging. got a different battery, still shows battery needs charging. only booting to at&t logo. what can i check or do next? thanx!

@chowceal
May be battery's calibration is wrong. If your phone's Android is rooted then you can try to re-calibrate it. I use "Advanced Battery Calibrator" app - what is attached - to do this from time to time.

the phone is not booting up to be able to use any app.

@chowceal
The phone tries to charge "by hardware" from whatever you plug it into. Then after some time it tries to boot, and part of the boot process will run off the internal battery.
If the charging happens from a slow charging powersource, the charge in the battery will be insufficent to bridge the "no charging" part of the boot process, the phone will shut down again and not resume charging!
So, if you charge from a "faster" charger, that can provide more current, then by the time the boot happens, there will be enough charge in the battery to bridge the gap.
My advice: Use the factory charger and/or a wall charger and not USB.
That is what I would do:
Plug the phone into the factory charger and cable.
Hold down the power button for several minutes (like 4-5 minutes) - The phone will cycle through several booting/charging screens.
Release the power button, then press the power button to make the phone boot.
Plug the phone into a computer or other non-factory charger; it should begin to charge, albeit slowly.
Finally after it has charged over 10% or more, plug it into the factory charger and see if it charges normally.
Important: Never charge over 80%, always start charging when 30% reached.
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both batteries were charged up to capacity. but the phone is not recognizing that. so is it a hardware issue, software issue??

chowceal said:
both batteries were charged up to capacity. but the phone is not recognizing that. so is it a hardware issue, software issue??
Click to expand...
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My POV: As you are not willing to do as suggested, it is best to take the phone to the repair.

since both batteries were at capacity, i dont see a need to charge them. yes, i could take it in for repair, but im trying to learn to do this myself. o, and thanx for your POV.
and im still looking for an answer as to what i need to test for.

Related

Anybody ever see a battery do this before?!

So I took out my sd card this morning and realized I had been using my replacement battery not the original one that came with the phone. (They are both the same official samsung battery, I just marked them so I know which is which) Later on this evening my phone was at about 45% and I decided to switch batteries because I had opened it back up to reinsert my sd card. I start the phone back up and my 2nd battery, which I always keep at 100% as a backup, was showing only 81%...
I thought this was odd since I put it on the charger for about a half hour every few days to make sure it's fully charged before I start the day just in case I need it. Anyway, I forgot about that quickly and set my phone down on my desk. About 5 minutes later I get a text message, unlock the phone, and low and behold the battery says 83% (and no it was not plugged in all day and had not been charging!) Has anybody ever seen a phone "charge" while it's not plugged in before? It went up to 93% and then finally started to die. Slowly increasing every ~10 minutes give or take. I even have the screenshots to prove it was "charging" while not plugged in.
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The only time I've seen a battery increase it's charge is when the temperature of the battery changes rapidly.
And perhaps if a cell bridges over ..
But that's usually reserved for lead acid type batteries....not lithium ion cells..
You have taught me today ....as this is a first for me ....
And I wouldn't be surprised if the battery is starting to fail ...so watch it to prevent any possible device damage.....g
Um. No. What you're seeing here is recalibration as the phone adapts to the other battery.
So you changed batteries while plugged in ??
Ah yeh, that explains the battery charge increase, as the new battery takes over, and the cycle record was not reset because the phone still has power...
battery is fine......my bad....g
I've had that happen before, and I only use OEM batteries with my phones. Like somebody else said its just a software hiccup where it's recalibrating. I've had times where I've pulled a battery to flash something at like 50 percent battery, when I boot back up I have like 10 percent showing, and it will slowly increase back up to like 40 percent. Its happened a few times and there's nothing to worry about.
Sent from my Galaxy Nexus using Tapatalk 2
No the phone was not plugged in. And I've switched batteries before without this happening. I know its not a problem I've just never ever watched a phone "charge" itself
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Sounds like a battery stats "hiccup" to me, when you rebooted after swapping the batteries it thought that the battery was the same, so it just kept polling like normal and reporting the "new" status. But i think that when a battery is inserted like that, I don't think that it can instantly report what the exact new voltage/Mah so it pretend charges like what you reported. AT least that's the most logical thing i can think of. My extended battery would "charge" like that sometimes if I battery pulled for some reason...
redneck.nerd said:
Sounds like a battery stats "hiccup" to me, when you rebooted after swapping the batteries it thought that the battery was the same, so it just kept polling like normal and reporting the "new" status. But i think that when a battery is inserted like that, I don't think that it can instantly report what the exact new voltage/Mah so it pretend charges like what you reported. AT least that's the most logical thing i can think of. My extended battery would "charge" like that sometimes if I battery pulled for some reason...
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Click to collapse
XDA is no longer worth my time.

[Q] Galaxy S3 - Loses Power While Charging!?

Hi guys,
I have had my S3 for 2 years now and noticed this problem for the first time around 5 weeks or so ago. Basically i noticed that it would not charge much after a long period of time charging, and also when using the device the battery would deplete a lot more quickly than what I am used to.
On investigation it appears that I am losing power while charging. I downloaded the application 'galaxy charging' which lets me know how many mA are being drawn etc.
Via mains the reference is always 1098 or around 1amp as it should be and via USB it is 466mA. This app monitors the average current being drawn while the device is charging and i notice that EVERY time i charge via either mains or USB the device NEVER charges at its max capacity (1098mA via mains and 466 via USB)
What i see which happens is as soon as i plug in my charger to mains it will start off close to maximum, around 800mA and then after 10 seconds or so it will slowly come down to say 600mA, a further 20 seconds or sooner we are down to 300mA and eventually it will either settle around this figure if i am lucky so i actually charge my phone (all be it very slowly) but much more likely it will always drop off to 100mA. At this power the phone drains more battery being on than power being given to it to charge so the battery goes down while charging.
Does anyone know what could be causing this?
Troubleshooting attempted:
I have replaced the battery with a new one. I still get the same problem
I have replaced the USB lead, i *might* get a slightly higher stable mA on average on one but maybe this is probably just coincidental
I have tested via mains and USB, the error occurs on both, I have tested mains where nothing else uses the socket and USB on a PC where the only USB port being used is the phone.
I have changed my ROM, I am now using ArchiDroid. I thought doing a complete reset and putting on a new OS might fix this but apparently not.
Right now I am out of ideas and am left thinking this is some internal hardware error, but can anyone else offer any suggestions or has this happened to anyone else?
Appreciate any responses,
James
You could try a custom kernel which allows you to override the charging current, but you may find the charging circuit inside the phone is damaged.
Easy solution if so is to get a desktop charger and second battery.
Sent from my GT-I9300 using Tapatalk
i had this same problem but simply replacing the cable solved it
i tried nokia cable and now it is fine ,
if that also dosent help than you can try googy max kernel or boeffella kernel and check for "ignore unstable power option"
Get one of these bad boys
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Just search "galaxy s3 battery wall charger" on ebay.
quaker1985 said:
i had this same problem but simply replacing the cable solved it
i tried nokia cable and now it is fine ,
if that also dosent help than you can try googy max kernel or boeffella kernel and check for "ignore unstable power option"
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Hi everyone, thanks for all your replies. However it was this one that fixed my issue. Since i already had the boeffla kernal on my phone i found the setting to 'ignore unstable power' and since having that checked i now charge at a constant 460mA via USB and 1098mA via mains. Thank you so much!!

Battery charging issue?

Although I've had this phone for over a year now, it took me up until now to bring this up:
When charging, once the battery level reaches 90%, it shoots up to 100% although the battery isn't fully charged. Using Cool Tool to read the battery voltage from /sys/class/power_supply/battery/batt_vol_now shows that while idle, the voltage reaches the full capacity of 4.3 volts. However, when the phone does any sort of processing or heavy I/O, it drops to something lower, which is expected since it clearly hasn't reached full charge.
The phone acts as if the battery is fully charged, so when I unplug it, the battery level (and voltage) instantly drops to somewhere between 90 and 100% depending on how long I leave it plugged in after it first shows 100%. I don't take this as a sign of battery aging, since if I leave the charger plugged in for an hour after it charges to 100%, the battery voltage stays at maximum capacity and drains normally depending on how much I use the phone.
What I'd like to know is if this happens to anyone else, because to me it seems more like a software issue rather than something hardware-related. I am running stock 4.4.2, rooted. There are no system-level modifications due to HTC's system partition protection, which I haven't found a need to bypass.
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jim45 said:
Although I've had this phone for over a year now, it took me up until now to bring this up:
When charging, once the battery level reaches 90%, it shoots up to 100% although the battery isn't fully charged. Using Cool Tool to read the battery voltage from /sys/class/power_supply/battery/batt_vol_now shows that while idle, the voltage reaches the full capacity of 4.3 volts. However, when the phone does any sort of processing or heavy I/O, it drops to something lower, which is expected since it clearly hasn't reached full charge.
The phone acts as if the battery is fully charged, so when I unplug it, the battery level (and voltage) instantly drops to somewhere between 90 and 100% depending on how long I leave it plugged in after it first shows 100%. I don't take this as a sign of battery aging, since if I leave the charger plugged in for an hour after it charges to 100%, the battery voltage stays at maximum capacity and drains normally depending on how much I use the phone.
What I'd like to know is if this happens to anyone else, because to me it seems more like a software issue rather than something hardware-related. I am running stock 4.4.2, rooted. There are no system-level modifications due to HTC's system partition protection, which I haven't found a need to bypass.
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Click to collapse
I don't have this issue with my M7, but I found this post which might be useful to you.

LG G5 Flashes 0% Charge

Hello!
I have a LG g5 and won't start.
Only appears 0% battery.
What is the problem?
Help me!
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Alin Mihai3 said:
Hello!
I have a LG g5 and won't start.
Only appears 0% battery.
What is the problem?
Help me!
Click to expand...
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Probably bad battery?
Sent from my LG-H830 using XDA Labs
Nick216ohio said:
Probably bad battery?
Sent from my LG-H830 using XDA Labs
Click to expand...
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It is possible to corrupt the motherboard?
Or it's just from the battery?
Means charge more before turning on
Press and hold the Volume Down button and the Power button with phone connected to charger. If it doesnt work try to connect it to PC, and try power it up with holding volume down button. When it turns on (booted in safe mode!) don't tuch anything just leave it for 5-10 minutes so battery charges to a couple of %.
It is probably bad battery. If you have charger supporting Quick charge 3 it shouldn't be a problem to start charging.
i had same problem i charged with turbo charger(motorola) and now its working
I just left my G5 charging for most of the day, using the POS turbo charger that came in the box, came back to a phone showing exactly the same as your photo.
Then I tried charging with my LG G3 (non-turbo) charger. Took about 3 and half hours but charged fine.
Last time I tried to charge my G5 using the turbo charger, it worked fine. And then randomly, it doesn't work at all. But the turbo charger allows works fine when charging my spare battery in its little LG charging case.
I hate this phone. G5 sucks. Worst phone I have ever owned.
This can happen on a variety of phones if the battery voltage gets low enough. The internal charging controller won't initiate charging because the voltageis below a certain
threshold. When it has happened to me I've connected the battery directly to a power source with voltage somewhere around 4 to 9 volts. It only need a brief boost, the higher
volt source needs shorter time obviously. For ~9v only probably need few seconds. I guess you could use 12v as well, but keep it short.
Then put back and try charging.

Charging Message and Question

Two questions. First, is the S21 fast charging a function of the charging brick AND charging cable or just the brick? In other words, would any cable be able to fast charge with a 25W brick or does the cable need to be compatible too?
Second, I'm seeing this message every time I plug the phone in to charge. I hit OK and the phone charges (very slowly) so I assume this is nothing to be concerned about per se. I've tried at least five charging cables and various power sources from bricks, PC, car USB ports, etc. and they all give this message. Granted, none of the cables or bricks are Samsung branded so I assume that is whats causing the message.
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shobuddy said:
Two questions. First, is the S21 fast charging a function of the charging brick AND charging cable or just the brick? In other words, would any cable be able to fast charge with a 25W brick or does the cable need to be compatible too?
Second, I'm seeing this message every time I plug the phone in to charge. I hit OK and the phone charges (very slowly) so I assume this is nothing to be concerned about per se. I've tried at least five charging cables and various power sources from bricks, PC, car USB ports, etc. and they all give this message. Granted, none of the cables or bricks are Samsung branded so I assume that is whats causing the message.
Click to expand...
Click to collapse
I’m using the t-mobile version of the s21.
I have not ever seen that screen. I am charging with a variety of chargers and cables (Some are usb type a to type c,some are type c to c.) I’ve used ravpower chargers (A 2-port model with my laptop and a smaller 30 watt model.j also lower output legacy type a usb sockets on power outlets. I put the original Samsun cable away in a drawer.
You need to use a fast charging compatible cable and brick. Otherwise fast charging will not will not engage.
I currently have 81% charge. When I plug it into a charger (brick or PC), it says 6 hours and 15 minutes to full. That can't be normal. I have fast charging enabled.
shobuddy said:
I currently have 81% charge. When I plug it into a charger (brick or PC), it says 6 hours and 15 minutes to full. That can't be normal. I have fast charging enabled.
Click to expand...
Click to collapse
It isn't. Try calibrating the battery. Discharge to auto shutdown, charge overnight to 100%, repeat.
Allow to remain on charger for 2 hours after it's showing 100%
Try clearing system cache.
Try charging with phone powered down (fast charging should work even then)
Try a factory reset.
Use a known good OEM fast charger and cable.
If that doesn't get it, it's probably a hardware or firmware issue.
Note: fast charging will not engage if battery temperature is too low or high. Best charge start temp is around 85°F.
If battery temp goes above about 100°F fast charging will disengage and so will all charging shortly after if temperature continues to rise.
What would be a normal charging time till full if you're at 81%...roughly speaking.
shobuddy said:
What would be a normal charging time till full if you're at 81%...roughly speaking.
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Click to collapse
30 minutes or so but a lot longer if you're trying to calibrate the battery. See below.
Here's another method for root and non-root:
How To Calibrate Android Phone, Tablet Battery [ No Root, With Root Calibration ]
How to calibrate android battery? This comes to your mind, if your battery draining rapidly or is it misbehave. There are many reasons for android battery
www.androidgadgematic.com
Yet another non-root method:
Android Battery CalibratIon Tips for Longer Battery Backup & Performance
Follow these Android battery calibration tips to calibrate battery on Android devices and enjoy longer battery backup and fix battery-related issues.
www.droidviews.com
Jeeesze... it has been confirmed that batterystats.bin is indeed run by gremlins.
So will a factory reset wipe batterystats.bin file?

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