why is my battery life is drainin

[AC Question]

Guys when I charged my hm note 1 to 100 it suddenly drops to 80 or 70 then come back 90-95 I don't know what's happening but plzz reply me as soon as possible it is not bloating so what can I do to prevent it

 

[NightFire]

Are you still using your original battery? Odd behavior on your device to be sure, but if your battery is several years old, it could be time for a new one. Still, though, I have never seen one have the percentage drop, then go up again (short of charging, of course).