Charging battery Fenix 18650 3500mAh (Li-ion)

The Fenix 18650 3500 mAh (ARB-L18-3500) premium rechargeable batteries with protected electronics are based on Panasonic/Sanyo's top-of-the-line NCR18650GA cells with improved LiNiCoO2 technology for improved safety and longer life. Li-ion rechargeable batteries are characterized by very high capacity, do not suffer from memory effect or self-discharge. Li-ion in the 18650 size are the best choice in terms of stored energy due to the size and weight of the battery.

Fenix battery protection consists of internal safety mechanisms and protective electronics. Added electronic circuits prevent the cell from overcharging, over-discharging and against short circuit or too high current draw. If the battery electronics assess that the limits have been reached, they safely disconnect the cell.

The internal protection consists of a separator, a latest Heat Resistance Layer (HRL) and a special anti-blast control valve. In the event that the gas pressure in the cell exceeds a certain limit, the internal separator separates the electrodes inside the battery and thus de-facto interrupts the exothermic reaction and the explosion-proof valve releases the excess gas pressure outside the battery. The combination of electronic and mechanical (temperature and pressure) protection makes Fenix batteries one of the safest li-ion batteries available.

The 18650 battery is roughly equivalent in size to two CR123A lithium batteries (but slightly longer and wider), which is why it is often used in flashlights as a rechargeable alternative to these primary cells. Check first if your appliance supports this cell. This battery is designed for operation in LED flashlights Fenix LD75C, Fenix SD10, Fenix SD11, Fenix SD20, Fenix FD30, Fenix FD41, Fenix FD65, Fenix E35, Fenix PD32, Fenix PD35, Fenix TK09, Fenix TK15, Fenix TK16, Fenix TK25, Fenix TK32, Fenix TK35, Fenix TK47, Fenix TK75, Fenix TK76. LED headlamps Fenix HL55, Fenix HL60R, Fenix HP25R, Fenix HP30R and bike lights Fenix BC21R and Fenix BC30.

Please note, due to length and diameter may not fit some old models - for example Fenix PD31, TK11, TK21, TK30.

Fenix 18650 3500mAh battery parameters:

• Nominal voltage: 3.6 V
• Capacity : 3500 mAh, tested at 0.2 C discharge current with termination at 2.5 V and 25°C
• Maximum current draw : 2 C (7 A)
• Maximum charging current : 2 A
• Dimensions : 18.6 mm (diameter) x 69 mm (length) (+/- 0.5mm)
• Weight 50 grams
• Protection against overcharging, complete discharge and short circuit (>7 A). Protective circuit mounted on the plus pole.
• Lifetime of more than 500 charge cycles
• Recommended operating temperatures: 0-45°C (charging), -20 to +60°C (discharging)
• Scope of delivery: one Fenix 18650 3500mAh battery (ARB-L18-3500).

Specifications:

Type: rechargeable Li-ion
Capacity: 3500 mAh
Size: 18650
Weight: 50 g