How long does fully charged backup battery stay charged?
Re: How long does fully charged backup battery stay charged?
The Nikon battery I found lasts about 200 shots. It really depends how long you leave the camera on for and if you also using for videos. I always carry an extra battery or two with me. I bought one high capicty and one standard nikon one. I got them both from igadgetnow.com. I also bought the travel charger that way i can charge the battery outside the camera. It's a really nice item. Hope that helps.