Nightstick 400-BATT Lithium Ion Battery for TAC-400/500 Series LED Lights

This rechargeable lithium-ion battery is a spare/replacement battery for select Nighstick Tactical flashlights including the TAC-400, TAC-500, and TAC-550 models. Not for use in Nighstick Xtreme Lumens series of tactical flashlights. Just like all Lithium-ion batteries, this unit has no recharge memory effect meaning it can be charged a little or a lot with no impact on the life of the battery.