Battery percentage is flipping randomly

[Android Central Question]

I don't why but suddenly my battery percentage is flipping randomly at very night speed ( less than 1 second)
Like 75% then flips to 76% then 75% then again 76% and so on ..
Sometimes decreasing is also occurring with flipping like 75-76-75-76-75-74-73....1 then again 75-76 and so on ....
Its very strange

 

[belodion]

It is. Could you try another battery?

 

[Rukbat]

It looks like "last digit bobble", which happens when an analog value is converted into digital (which is happening with battery voltage) when the actual value is around 75.4 to 75.5. It flips back and forth between 75 and 76 if it's showing only 2 digits. (The actual value may be 75.444444445, so that almost unmeasurable change in that last 5 ripples through to the second digit.) It probably has more to do with the way the phone measures percentage of battery left than it has to do with the battery condition. If I saw that on a Samsung or an LG, I'd probably reflash the ROM and if that didn't fix it, demand a new phone. But if it's some lesser-known brand selling for a much lower price, I'd chalk it up to "you just have to learn to live with it".