Streamlight Battery Stick - Stinger Group LED | KLL-75375 The Streamlight Ni-MH battery stick, the chemistry is Ni-MH, that is, nickel-metal-hydride, and it's meant to be a replacement for other Ni-MH batteries. Streamlight is a well-respected American company that manufactures the toughest and most capable flashlights out there. A battery stick is similar to a battery pack, in that it is actually multiple batteries bundled together. The voltage on this battery stick is 3.6V, more than double the voltage of a typical alkaline primary cell. This battery stick is sub-C in terms of size. The Streamlight battery stick is certainly going to become an essential part of your Streamlight supplies. Features Battery stick that specifically fits their line of popular and powerful Stinger/Polystinger flashlights Replacement batteries