ASP’s rechargeable Lithium-ion batteries feature an exclusive, single-ended terminal design that allows them to be charged inside ASP Dual Fuel flashlights, while preventing charging current from being sent to non-rechargeable or other incompatible cells. This unique safety feature also makes possible the tiny, ingenious Charge Dock—a magnetic adapter that connects to the included retractable USB-to-micro-USB cord (or any micro USB charge cord), and self-fastens to the charging end of any , 14500 or 16340 battery. Once connected, an LED indicator flashes red while charging, and turns solid green when complete. The Charge Dock is a perfect, pocketable way to keep a backup battery topped off and ready.

The Charge Dock is only compatible with ASP Lithium-ion batteries, sold separately