Fuji NP-W126 Replacement Lithium-Ion Battery, 7.4 volt 1400mAh, for Fujifilm X-Pro1, FinePix HS30EXR, HS33EXR Cameras

I haven't used these batteries for long, so I can't speak to their endurance. They power my X-Pro1 with no problem.I just wanted to add a warning for XPro users, however. These batteries are slightly larger than Fuji batteries, and will get stuck in the battery slot. I've wrapped mine in scotch tape, which gives me something to pull them out with. This is annoying, but doesn't make them worse at their job.Edit: One of the batteries I received won't hold a charge at all. Buyer beware.

Its really nice to have a replacement battery as you can be ready if your original battery dies, I used it with HS30, now I am using it with HS50, NICEEE

I've had no problems with this battery and it seems to be as good or better than the OEM battery that came with my cameral.

Worked as advertised with my Fuji Finepix HS30EXR.

Very good battery

I used these in a Fuji HS50 camera, they are exactly the right size and the battery meter appears to work correctly.Other people have said that these last about half as long as the official factory battery.In actual use, I did get more photos with the factory batteries than I got with these. But it is not possible to make a direct comparison because the camera uses different amounts of power depending on the shooting conditions.I got 700 shots using this battery. I was very surprised by that because the camera manual says you will only get about 300 shots per charge (with the factory battery).The factory battery gave me almost 2000 shots, this was very surprising as it far exceeded what the manual said to expect. But the shooting conditions were totally different, the camera was in a different mode. So I can't make a valid comparison, all I can say is that the factory battery does appear to last longer.But think about it, even if these batteries only last half as long, you can buy about 10 of these for the same price as one factory battery. That sounds like a great bargain to me. They are small and light weight so carrying two of them around is not a problem.They fit very well in the Optek shock absorbing neck strap B0048399AM I am totally happy with these batteries.