Instruct: Classify a given Amazon review as either positive or negative.
Query: Sanyo 7300 Replacement Battery

This is the second battery of this type for the same phone that I have purchased thru Amazon. This battery does not seem to perform as well as the first battery. It does not seem to have the same talk time or duration as the previous battery. I bought the second because I loved the first one, it was strong and had lasting power for an older phone. Not sure if it's the batteries fault or the age of the phone. It does charge quickly and does work so I'm not unhappy with it. I will probably purchase another one when this one goes bad.