Flexible, sustainable, powerful – this is what distinguishes our Powerbanks belonging to the Flex series. Offering six functions in a robust and water-resistant housing it provides: powerbank, battery charger with charge level indicator, secure battery storage, two separate displays for capacity check, double protection against short circuits, fast battery replacement. The Powerbank Flex7 contains two batteries type 18650 (included) for a capacity of 6800 mAh.