help me fix my htc one phone

[Android Central Question]

can you please help me with the problem.it gets on my nerves.i have an htc one but its battery drains very fast like at random times times it will switch of 70 percent or 50 .its battery drainage is so quick like in one hour it will go from 80 to 20 even when left idle . the battery is the orignal one .what should i do?

 

[belodion]

Replace it, and make sure you replace it with a good one.