Hey, I have 7 RCR123A BATTERIES I don't need and 2 14500. All are rated 3.6 or 3.7V which means 4.2 on full charge. Also I would not recommend the enelop batteries. They do not put out 1.5 volts. If you are using a green laser you will lose a lot of output with these batteries. As of now I am stocked up on hosts but thank you for offering. I will keep and eye out for your builds.