Fenix ​​ARB-L18U 18650 3400 mAh 3.6 V  is a high-quality lithium-ion battery with the highest capacity available on the market and an innovative charging system via a micro-USB port.

Thanks to its advanced design and multi-level protection, the manufacturer guarantees  up to 500 charging cycles  while retaining up to 75% of the capacity. This means that the cell can be discharged and charged every day for 1.5 years - which clearly highlights its quality and efficiency.

Due to  the lack of memory effect , Fenix ​​batteries can be recharged at any time without negatively affecting their capacity and service life.

The steel body ensures  high mechanical strength  and minimizes the risk of short circuit caused by falling or impact. The battery is equipped with  pressurized ventilation holes , responsible for expelling gas, which may lead to expansion or explosion in the event of an accidental short circuit.

The battery uses an innovative  charging system  in the form of a built-in  micro-USB port . This extremely practical and convenient solution allows you to charge the cell  without the need to use an additional charger . To charge, all you need is a standard micro-USB cable and a power source, e.g. a power bank, laptop, desktop computer or USB car charger. The USB battery not only allows you to save money (on the purchase of a charger), it also ensures  comfort and mobility of charging .

The manufacturer has used  a multi-level security system that maximizes the battery life and ensures the highest level of safety.

Security systems:

• protection against excessive discharge during use
• overcharge protection during the charging process
• circuit protection against short circuits
• overheating protection
• cathode with PTC protection (overload protection).
• To maximize battery life,  it is recommended to use a charging current of 1 A , maximum 2 A.