Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Sour grapes

I was looking forward to saving money with this item. Being able to recharge alkaline batteries would have saved me a great deal of money. Every alkaline battery I charged worked for a short time but would then leak.Cost me a very nice 35mm digital camera. As well as 2 battery operated tooth brushes. Too the cover lid will not stay closed. Stay away.