Fenix Flashlight ARB-L1S Extended Life Battery Kit for RC10 / RC15 / UC40

The ARB-L1S Extended Life Battery Kit from Fenix is a power accessory for either the UC40, RC10 or RC15 rechargeable flashlight. This two-piece kit comes with an ARB-L1 2600mAh rechargeable battery and a custom-fit charging receptacle. A unique, fool-proof reversible polarity design helps make the battery easy to replace in the dark. The included 18650 lithium-ion battery also features protection against over-charging, over-discharging, and over-heating.