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Fenix 18650 3500 mAh Rechargeable Battery (Li-Ion)
The Fenix 18650 3500 mAh (ARB-L18-3500) Rechargeable Batteries with Protected Electronics (protected) are based on Panasonic/Sanyo's industry-leading NCR18650GA cells with enhanced LiNiCoO2 technology for improved safety and longer life.
Li-ion rechargeable batteries feature 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 over-current draw. If the battery electronics assess that the limits have been reached, they safely disconnect the cell.
Internal protection consists of a separator, a state-of-the-art Heat Resistance Layer (HRL) and a special anti-blast 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 among the safest li-ion batteries available.
The 18650 battery is roughly the size of 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 use in LED flashlights, headlamps and bike lights, for example:
- 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
- Phenix TK32
- Fenix TK35
- Phenix TK47
- Fenix TK75
- Phenix TK76
- Fenix HL55
- Fenix HL60R
- Fenix HP25R
- Fenix HP30R
- Fenix BC21R
- Fenix BC30
Caution, due to length and diameter may not fit some old models - for example Fenix PD31, TK11, TK21, TK30.
Parameters:
- Nominal voltage : 3.6 V
- Capacity : 3500 mAh
- 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, full discharge and short circuit (>7 A)
- Protective circuit attached to the plus pole
- Lifetime of more than 500 charge cycles
- Recommended operating temperatures: 0-45°C (charging), -20 to +60°C (discharging)
Recommended chargers available:
Caution
If you are using an older charger purchased approximately before 2014, please check first if it will fit 69-70mm batteries. If possible, do not discharge the battery below 2.5V. Do not short-circuit the battery (do not connect the cell poles with a wire). Do not throw the battery into fire or water. Do not insert the battery into the charger in reverse (opposite polarities). When using the battery, observe the safety principles. Use only an adequate charger that supports li-ion batteries.- Product parameters
- Manufacturer: FENIX
- Product code: FE18650LI35
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Fenix is the high-tech leading brand for outdoor sports lighting including high-end flashlights, headlamps, bicycle lights, camping lanterns, headlamps, rechargeable flashlights and accessories
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