DescriptionFENIX ARB-L18-3400U Built-in USB Rechargeable Battery | 3400mah 3.6VThe ARB-L18-3400U is a high-capacity 18650 Li-ion USB rechargeable battery with a protection circuit in the anode to help prevent short circuits, overcharge/discharge, and overheating. This battery has its own micro-USB charging port for quick/easy charging without the need for a separate charger. The battery also includes pressure relief vents that expel waste gas in the rare case of an internal short circuit preventing an explosion. A micro-USB charging cord is NOT included. Specifications of the ARB-L18-3400U Built-in USB Rechargeable Battery-Micro-USB charging port-3450mAh high capacity-Protection circuitry to prevent short circuits-Pressure vents to prevent explosions-500 charge cycles-Voltage: 3.6V-Charging Current: Recommended 1A, maximum 2A-Charging Current USB Port: 1A-Weight: 1.76 ounces (50g)-Size: Length: 2.76″ (70mm) Diameter: 0.73″ (18.6mm)-Indicator light on battery is red while charging, blue when charged
