Why is my battery draining on my HTC One M7 when it gets to 10?

[AC Question]

htc one m7 battery percentage drains when getting to ~10%

I have my HTC one for about a year and i'm using the latest RevolutionHD rom for m7.

I think this started on one of the revoution hd versions, because when i just bought it, it was ok,

The problem is this:
When the phone battery percentage hits 15%, it drains really fast.
From 15% it jumps to 11%, from there to 6% and after few minutes to 1% and turns off.

I have about half an hour from the time the phone gets to 15% to the time it turns off.

I've tried few battery calibration apps but it didn't help.

I can't tell if it is hardware or software problem.

anyone?
thanks

 

[belodion]

Re: htc one m7 battery percentage drains when getting to ~10%

I could be wrong, but I suspect that the battery may be failing.

Posted via Android Central App