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Rechargeable battery Fenix ​​18650 3500 mAh (Li-Ion)

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Product Description
599 Kč
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The top-of-the-line Fenix ​​18650 3500 mAh (ARB-L18-3500) rechargeable batteries with electronic protection (protected) are based on top-of-the-line NCR18650GA cells from Panasonic/Sanyo with improved LiNiCoO2 technology, which brings higher 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 given the dimensions and weight of the battery.

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, state-of-the-art overheating protection (HRL - Heat Resistance Layer) 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.

The 18650 battery is roughly the size of two CR123A lithium batteries, which is why it is often used in flashlights as a rechargeable alternative to these primary cells. Check first to see if your device supports this cell.


Fenix ​​18650 3500mAh battery parameters

  • Nominal voltage: 3.6 V
  • Capacity: 3500 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: 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 overcharge, deep discharge and short circuit (>7 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 ​​18650 3500mAh battery (ARB-L18-3500).
  • The datasheet directly from the manufacturer can be downloaded here .

Notice

  • If you are using an older charger purchased before 2014, first check whether it can accommodate batteries with a length of 69-70 mm.
  • 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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