Battery indicator stuck at 3%, software/hardware problem?

[Android Central Question]

I use Samsung Galaxy A7. Android 8.0.0. The first time this happened was because one night I forgot to turn off and charge my phone before sleeping so it just turns off on its own. So in the morning I charged it while its off and saw the battery indicator says 3% even after 2 hours of charging. I assume it actually charges but the indicator just couldn't go past 3% because I literally used the phone for the whole day that day. Switched charger and plugged it to a different socket, still doesn't work.

Another way, tried doing a hard reset factory and it worked after I turn it off to charge. Then after its full I turn my phone on again and I did a restore data. I did it because I wanted to bring back my photos & videos. Then I turn it off for the night, the next morning it happened again. Stuck at 3% after charging for hours. Could it be that there is a file/virus that causes this to happen? I did not only backup the photos & videos, but also the applications data and other files!

 

[belodion]

It could be the battery chip, but try Safe Mode.
https://r.tapatalk.com/shareLink/to...ead.php?t=409154&share_type=t&link_source=app

 

[mustang7757]

Could be you have a bad battery.

I'll leave a Link to register so you can communicate here as a guest account you can only post questions but can't reply.
https://forums.androidcentral.com/showthread.php?t=409154

 

[blackhawkhot]

Could be you have a bad battery.

I'll leave a Link to register so you can communicate here as a guest account you can only post questions but can't reply.
https://forums.androidcentral.com/showthread.php?t=409154

I know LI's have an internal microchip processor to at least keep them within there minimum charge parameters ie will disabled charging if V+ falls too low to prevent possible charging thermal run aways.

Not sure what if any data is available from the pack to the phone. Is there more than one V+ sensor available to the phone (battery one + mobo one)?
That info is buried; it's there somewhere but can't find it
I assume the phone reads off a mobo but perhaps not... a battery swap might cure it.

 

[mustang7757]

I know LI's have an internal microchip processor to at least keep them within there minimum charge parameters ie will disabled charging if V+ falls too low to prevent possible charging thermal run aways.

Not sure what if any data is available from the pack to the phone. Is there more than one V+ sensor available to the phone (battery one + mobo one)?
That info is buried; it's there somewhere but can't find it
I assume the phone reads off a mobo but perhaps not... a battery swap might cure it.

That's what I'm thinking also

 

[blackhawkhot]

That's what I'm thinking also

The 3rd tab on the bat is for data I believe. Not sure how the phone uses it though, thankfully.
I miss phones with backs and pop out bats...

 

[mustang7757]

The 3rd tab on the bat is for data I believe. Not sure how the phone uses it though, thankfully.
I miss phones with backs and pop out bats...

I agree , miss the replaceable battery pop out.

 

[blackhawkhot]

I agree , miss the replaceable battery pop out.

Pulling the bat is my preferred way of doing a device reset when a reboot doesn't work. On digital cams it's a god sent.
Old school is better...