Summary: A great replacement battery for your sony camcorder with 3X the power over the stock battery and is the same size as the stock battery so you don't have a big battery out the back of your camcorder slim and thin with 3x the power great now I'm uses my old battery for a backup
Pros: Much longer run time then the battery my camcorder came with and fast charger time too works very well for my needs thanks Anthony W
Summary: As expected, original equipment for Sony is the best. I've tried after market products, only to be disappointed with their battery life. Seems like they wear out 50% faster than genuine products. This is a great battery for the video flash, since it is compact and does not add an inordinate amount of weight to the front of your camera.
Pros: Durable Reliable Perfect size for the Sony HVL-20DW2 light