Kastar NP-FM500H Battery (2-Pack) for Sony DSLR-A100 A200 A300 A350 A450 A500 A550 A560 A580 A700 A850 A900 Alpha SLT A57 A58 A65 A65V A77 A77V A77 II A77M2 A99 A99V CLM-V55 Cameras

These have a good to them and bad. First off and it only happen with these brand. My regular sony brand do not do these. The bad for all the once I have from this brand they do not show the correct % of how much battery life is left in them. It will start off at 100% and then in a while it drops down to 98% and stay at until the battery runs out. The good part is even when it does not show the % on them I do feel they have more power then the sony brand do. Sonya rated for 1600 something like that and these are rated at 2400. I ordered 2 the first time and with out using them ordered 3 more. Today I had a photo shoot and used kaster first lasted about 1hr and a half of almost none stop. Camera turned off because I couldnt tell what % they are so I took it out and put a sony. Still busy and the Sony lasted about 45min. Felt the Sony didnt give me the time/picture amount I wanted so when it ran out I put in a kaster and finished the shoot with it. Since it slowed down I was didnt have to switch it out. If they last me a while and dont completely die on me I'll keep buying this brand. I dont need the % since I have plenty of back up batteries and switching them out is not a problem since I'll have to switch them out less then i would with the sony name brand.

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 the can't match or surpass the Sony OEM batteries I feel there's no point in buying them again.

One battery arrived dead. Reached out to their customer service and they wanted me to return it. Considering the cost of gas and being disabled the individual battery was not worth the effort on my part! Disappointing!

They work. Haven’t really put them through a good test.

no compro esa marca nunca mas