Fenix ​​USB Battery ARB-L14-2200U (2200mAh 1.5V)

The Fenix ​​ARB-L14-2200U is a rechargeable 2200 mAh lithium-ion AA battery with a constant output voltage of 1.5 V for voltage-sensitive devices. Charging is via the built-in USB-C port, without a separate charger. It features multiple protections against overcharging, deep discharge, and short circuits, with a lifespan of at least 500 charge cycles.