Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Did Not Work Well For Me

Excellent price and the battery did power the camera but only for 1 day. When it powered out, there was no warning, I took a picture and it died next shot. By contrast, the Canon battery just goes on and on with a single charge. As long as you know what you are getting into, I suppose the price is such that you can carry a couple of spares around as back ups as the OE battery is recharging.