Rechargeable Battery 21700 5000mAh Type-C USB

ARB-L21-5000U is a high capacity 21700 Li-ion USB  rechargeable battery built for more power and longer runtimes.

This battery has its own USB-C charging port for quick/easy charging without the need for a separate charger.

Additional features include a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating.

Pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion.

Compatible with: E35 V3.0, HT18, LR35R,  LR50R,  PD36R, PD36 TAC, PD40R V2.0, Tk16 V2.0, TK20R V2.0, TK22 V2.0, TK22 UE, and TK30.

Important  Note:  This  battery is NOT COMPATIBLE with 18650 flashlight or older style chargers. COMPATIBLE chargers are the  ARE-A2, ARE-A4, ARE-D1 OR ARE-D2.