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Fenix ​​Li-Ion 18650 rechargeable battery, 4000 mAh

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The top-of-the-line Fenix ​​18650 4000 mAh rechargeable batteries (ARB-L18-4000) with protected electronics deliver the highest real capacity on the market. Li-ion rechargeable batteries are characterized by a very high capacity, they do not suffer from memory effect or self-discharge. Li-ion in the size of 18650 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. The added electronic circuits prevent the cell from being overcharged, its excessive discharge, and against a short circuit or excessively high current consumption. If the battery electronics evaluates reaching the limit values, it safely disconnects the cell.

Internal protection consists of a separator, protection against overheating (PTC thermal protection) and a special anti-explosion valve. If 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 anti-explosion valve releases the excess gas pressure outside the battery. Thanks to the combination of electronic and mechanical (temperature and pressure) protection, Fenix ​​batteries are among the safest Li-ion batteries available.
 

The size of the 18650 accumulator corresponds to roughly two CR123A lithium batteries, which is why it is often used in lights as a rechargeable alternative to these primary cells. Check first if your appliance supports this article. This battery is intended for use in Fenix ​​E28R, PD32R, PD35, PD35R, TK11R, TK25 UV, TK25 Red, LD30R, WT25R LED flashlights, for example. Fenix ​​HL55, HL60R, HP25R (1000lm version only), HP30R (1750lm version only), HM60R, HM61R, HM65R, HM65R-T LED headlamps, CL26R, CL30R lanterns and Fenix ​​BC21R and BC30 bicycle lights.

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

Fenix ​​18650 4000mAh battery parameters

  • Nominal voltage: 3.6 V
  • Capacity: 4000 mAh.
  • Maximum current consumption: 7 A
  • Maximum charging current: 4 A
  • Dimensions: 18.75 mm (diameter) x 69.2 mm (length) (+/- 0.5mm)
  • Weight 55 grams
  • Protection against overcharge, deep discharge and short circuit (>7 A). The protective circuit is attached to the plus pole.
  • Lifetime of more than 500 charging cycles
  • Recommended operating temperatures: 0-45°C (charging), -20 to + 60°C (discharging)
  • Package contents: one Fenix ​​18650 4000mAh battery (ARB-L18-4000).

Recommended chargers

Charger Fenix ​​ARE-A2
Charger Fenix ​​ARE-A4
Fenix ​​ARE-D1 USB charger
Fenix ​​ARE-D2 USB charger
Mini USB charger MC1
USB charger SC1
Two-channel USB charger FC2
Lii-100 USB charger
Charger Lii-500S
Eight-channel USB charger VC8
SkyRC MC3000

Warning

  • If you are using an older charger bought before 2014, check first whether it can fit batteries with a length of 69-70 mm.
  • If possible, do not discharge the battery below 2.5 V
  • Do not short-circuit the battery (do not connect the poles of the cell with a wire)
  • Do not throw the battery into fire or water
  • Never insert the battery into the charger upside down (opposite polarities)
  • When using the accumulator, pay attention to the safety principles
  • Use only an adequate charger supporting Li-ion batteries

Warranty

Warranty two years.

Capacity: 4000mAh
Weight: 55g

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product ID 294151
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Fenix is a recognized brand in the field of lighting, known for their high-quality and reliable products. Founded in 2004, Fenix has built a solid reputation for manufacturing a wide range of flashlights, headlamps, lights, and other lighting solutions for a variety of outdoor, tactical and everyday uses. With their commitment to innovation, durability and reliability, Fenix has become a trusted name in the lighting industry.
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