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Rechargeable battery Fenix ​​21700 5000 mAh (Li-Ion)

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Product Description
649 Kč
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The innovative Fenix ​​21700 5000 mAh V2.0 (ARB-L21-5000 V2.0) rechargeable batteries with electronic protection (protected) are based on cutting-edge LiNiCoO2 technology, which brings higher safety and longer service life. Li-ion rechargeable batteries are characterized by very high capacity, do not suffer from memory effect or self-discharge. Li-ion in the 21700 size are the best choice in terms of stored energy due to the dimensions and weight of the battery, they are gradually gaining ground, for example, in the automotive industry.

Fenix ​​battery protection consists of internal safety mechanisms and protective electronics. Added electronic circuits prevent cell overcharging, excessive discharge and short circuit or excessive current consumption. If the battery electronics evaluate that the limit values ​​have been reached, they safely disconnect the cell.

Internal protection consists of a separator, the most modern overheating protection (PTC - Positive Temperature Coefficient) and a special explosion-proof valve. In the event that the gas pressure in the cell exceeds a certain limit, the internal separator separates the electrodes inside the battery, thereby de-facto interrupting the exothermic reaction, and the explosion-proof 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.

Due to the battery's length of 76 millimeters (including protective electronics), it can only be charged in chargers that are adapted to this length.

Fenix ​​21700 5000mAh battery parameters

  • Nominal voltage: 3.6 V
  • Capacity: 5000 mAh, tested with a discharge current of 0.2 C with termination at a voltage of 2.5 V and a temperature of 25°C
  • Maximum current consumption: 7.5 A
  • Maximum charging current: 5 A
  • Dimensions: 21.5 mm (diameter) x 76 mm (length) (+/- 0.5mm)
  • Weight 73.5 grams
  • Protection against overcharge, deep discharge and short circuit (>7.5 A). Protection circuit attached to the positive pole.
  • Lifespan of more than 500 charging cycles
  • Recommended operating temperatures: 0-45°C (charging), -20 to +60°C (discharging)
  • Scope of delivery: one Fenix ​​21700 5000mAh battery (ARB-L21-5000 V2.0).

Notice

  • 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 upside down (reverse polarity).
  • When using the battery, observe safety precautions.
  • Only use an adequate charger that supports Li-ion batteries.

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