Instruct: Classify a given review into positive or negative sentiment.
Query: Not as good as stock.

Not a very good battery, but it is cheap.It seems to overheat on the stock charger, Ni-mh and Ni-cd have different charging requirements. The run time is real short, around 15 minutes with my old camera. Lastly, it goes dead by itself in a couple weeks and needs recharging.