Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Battery not working.

This battery is not working. I have ordered this battery for Sony Cybershot DSC-P100. I have received the battery on time and I charged it for hours but it doesn't seem to be working. The camera powers up and immediately switches off. I don't know may be I got the wrong one. It is real waste of time. I am going to return this and not going to recommend this to anyone based on my experience.