The BOC-01 charging adapter allows you to charge your flashlight without removing the battery with a USB-C type charging cord. It also functions as a backup battery charger for your phone or other small devices by pulling a charge from the battery to your device if needed with the proper USB-C cable making this a valuable accessory. The BOC-01 works with both the Barebone Outdoors TPL-25 and the HPL-50 handheld lights. Includes Type-C Charging and Discharging Module.