The batteries fit fine I think. They are the same width but very slightly longer. I just charged them and it they just don't work with the laser. I bought the Keeppower 18350 batteries on amazon.
I recently bought Sanwu's 1.6W Laser and it is almost worthless. I can't see the beam in foggy or dark areas. I can't even see any light from the laser unless I am an inch away from the surface I'm pointing it at. I've heard good things about Sanwu on this forum and I expected better. 2 Flat Top...