u/CornerPrestigious101

For some context, I own a canon powershot a3400 IS. My auntie gave it to me not to long ago, she said she haven't used it so she gaved it to me. I recently been having problems with the battery (specifically NL-11L), even though I'm not using it would randomly drain. I'm just wondering if it's because I've been using it almost every day, changing it daily. What should I do? Should I buy new batteries instead?