Instruct: Classify a given Amazon review as either positive or negative.
Query: Battery less than expected

The "new" battery holds a charge for much less time than I expected. I ordered one of these a year ago for a different phone and it literally performed like a brand new phone and battery. However this one barely increased the performance time over the battery I was replacing. Can't fault the price, and I was very impressed by the previous one I bought. Perhaps I just received a "bad battery" this time.