FENIX 6000MAH 21700 RCHRGBL PB BAT

FENIX USB Rechargeable 21700 Powerbank Battery, USB-C Charging Port, 6000mAh, 3.6V, Black FX-ARBL216000B
The Fenix ARB-L21-6000B Rechargeable Powerbank Battery offers a high-capacity 6000mAh energy reserve within a compact 21700 battery format. It supports efficient USB-C charging and not only powers your 21700 battery flashlights but can also serve as a power source for other USB-C devices using only the included USB type C cable. THIS BATTERY IS NOT AN 18650, AND IT IS NOT COMPATIBLE WITH 18650 FLASHLIGHTS.