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Fenix ARB-L16-700UP 16340 Rechargeable Battery with Built-In USB. The Fenix ARB-L16-700UP 16340 lithium-ion battery is specifically designed for high current, high drain devices and makes a great accessory add for all current Fenix 16340 (RCR123) powered lights. The simple explanation of the benefits of this battery used in Fenix high drain devices is that they will last longer at their highest performing levels by sustaining a higher voltage.

It also includes a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. This battery can quickly be charged without the need for a separate charger via it's USB port. This not only saves you money from purchasing a charger, but also convenience of not having to carry around another device.

Fenix ARB-L16-UP with Built-In USB 16340 Rechargeable • Battery Features:

• Size: 16340 Button Top Battery
• 700mAh Nominal Capacity
• 3.6V Nominal Voltage
• Max discharging current: 2.5A
• Charging current by USB port: 0.3A
• Charging current by separate charger: 700mA
• Heavy Load Discharge: 3.5C high rate discharge; 2.5A stable • output
• Protection Circuit in the Anode to prevent short circuit
• Multiple layers of protection
• 500 charge cycles can be expected from a properly maintained battery
• Fully covered with a steel shell for impact resistance
• Over charge, discharge, short circuit, and over heating protection
• Three sets of over-head protection: Pressure relief valve protection, separate microporous protection, and PTC cathodal block protection
• Weight: 0.66 ounces (18.8g)
• Size: Length: 1.4" (35.5mm) Diameter: 0.7" (16.8mm)
• 12 months free warranty from date of purchase