Double down on portable power delivery with the 6800mAh Flex7 PowerBank from LEDLENSER. Sporting two replaceable 18650 Li-Ion 3.6v batteries, this power bank provides a battery capacity of 6800mAh. Thanks to IP65 water and dust resistance, the Flex7 can survive your favorite outdoor activities. In addition to various USB devices, this power bank is compatible with select LEDLENSER flashlights and headlamps.