Instruct: Classify the given review as either positive or negative.
Query: Incompatible with Canon charger?

I bought this battery as spare for my Canon Digital Rebel. However, the charger that came with the camera (CB-5L) would not charge it (no blinking lights). Not sure if the battery was defective or just incompatible. If you only need one extra battery as I did, I would recommend just paying the extra $$ and getting the Canon battery.