best battery lithium or ni-mh
The landscape for rechargeable batteries changed dramatically when lithium and Ni-MH technologies entered the picture. After hands-on testing of all the top contenders, I can tell you the key differences really matter. Lithium batteries, like the SPMST 3600mWh Rechargeable AA Lithium Batteries (8 Pack), offer a steady 1.5V output and can withstand extreme temperatures from … Read more