Kastar 2-Pack NP-FM500H Replacement Battery

Holds a charge well. High capacity. Seems to be more powerful than original Sony, which are still very good. This brand looks to be the one to get. I wish the Minolta/Sony flash units were designed for these batteries or they somehow ran off them. I'm very pleased with them, but I won't need to by more for a long time if ever. They're running my A65 and A58. These cameras are from 2016 and 2013. It's great to be able to get high quality batteries for them.

A good replacement for OEM battery. No problems in my Sony a77II Camera.

It is an OK substitute for original Sony batteries of same type . However, it does not hold as much power as Sony batteries and so does not last as long before needing recharge. However, it does work and for the price is a good value.

Better than oiginal

GREAT DEAL

Seemed okay at first but later developed bulging so they don't fit camera.

These Batteries are good for backup/in case of emergency. I wouldn't recommend using them on assignments, they will embarrass you

I bought these batteries back in July. When I first tried them out I noticed that my camera would show no more than 89% charge on these batteries. They seemed to work fine though. However, leaving them in the camera with the camera off they discharge a lot faster than the Sony OEM batteries when the camera is not in use. With the Sony batteries I might not have to recharge a battery that was just sitting in the camera for 1-1/2 months in general. However these Kastar batteries needed to be recharged in just a few days. They discharge a lot faster than the Sony OEM batteries. I want to like these batteries, but if they can't match or surpass the Sony OEM batteries I feel there's no point in buying them again.