The Fenix ARB-L21-5000 V2.0 is a high capacity 21700 Li-ion rechargeable battery with a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. The battery also includes pressure relief vents which expel waste gas in the rare case of an internal short circuit.

FEATURES:

• Button-Top Design
• Protective circuit inside the anode
• Multiple protection
  • Over-charge protection
  • Over-discharge protection
  • Overheating protection
• Short-circuit protection
• 500 charging circles