The ARB-L18-1100 is Fenix's lithium ion rechargeable battery for flashlights such as the TK05R. It has an 1100 mAh capacity and features multiple layers of protection including overcharge and over discharge, short circuit, and overheat protection circuits in the anode plus a pressure relief valve, microporous protection, and PTC cathodal block protection. It has a 7A maximum current and is leak and explosion-proof made with steel shell riveting technology.

All Fenix rechargeable batteries are rated for up to 500 charge cycles and feature a 1 year warranty.

Shipping Note: Lithium ion batteries cannot be shipped via expedited shipping service due to shipping carrier restrictions. Orders that include lithium ion batteries that aren't included in lights they are meant to power will be shipped via UPS or USPS ground service.