Sony NP-FW50 Battery

I have one Sony battery that was included with my a6500. I had two off-brand backups that eventually lost their ability to charge. So I ordered two (allegedly) legitimate Sony batteries. My charger will not even light up one green to indicate it is charging. Other than the orange charge light indicator, no sign of life (or charge level) from either battery. I will leave one battery on the charger, testing to see whether it is warm--looking for any sign of life--throughout the day or night. I did confirm that the batteries arrived with zero charge (by inserting one into the camera). Perhaps I received old batteries. I will attempt to update this review if I see any sign of life after six or eight hours on the charger.

I recently bought a new Sony FW50 and at the same time SmallRig and Duracell. I've been logging shot counts with each. I normally (always) get lower than advertised shots per charge because of the way I use the a6500 but I abuse them all the same so the comparison should hold. This is since July 2023, 4 months, 2986 shots in all.Shots per charge average:Sony: 185SmallRig: 246Duracell: 255Surprised me, but it is what it is.

Its ok, but loses power very quickly. The rating indicates that the battery should be able to do about 380 shots. I have been getting maybe 80. Yes, there is a time issue here. I don't use the camera often.I have read that the battery drains quickly as a causal result. Compared to my Nikon batteries, the Sony ones are not as durable or long lasting. Better than the third party versions I would imagine.