Fenix ARB-L21 rechargeable battery (4000 mAh 3.6 V)

Fenix ARB-L21-5000 is a high quality lithium-ion type 21700 rechargeable battery with an impressive capacity of 5000 mAh designed for hunting and tactical flashlights and devices with high current consumption.

Thanks to its advanced design and multi-level safety features, the manufacturer guarantees as many as 500 charging cycles with up to 75% capacity retained. This means that the cell can be discharged and recharged daily over a period of 1.5 years-which clearly emphasizes its quality and performance.

Due to no memory effect, fenix batteries can be recharged at any time without adversely affecting their capacity and service life.

The steel body provides high mechanical strength and minimizes the risk of a short circuit caused by a fall or impact. The battery uses pressurized ventilation holes, responsible for the expulsion of gas, which during an incidental short circuit can lead to a swell or explosion.

The manufacturer used multi-level security system, which maximizes battery life and provides the highest level of battery safety.

Security systems:

• protection against over-discharge during use
• protection against overcharging during the charging process
• circuit protection against short circuits
• overheating protection
• cathode with PTC protection (overload protection).

To maximize the life of the battery, for charging 1 A current is recommended, 5 A maximum.