● Cooling system

● Voltage active balance

● BMS

● Detachable harness

● Foldable handle:Easy to operate transport

● Designed for professional use

● Remaining energy indicator:Show how much energy left

● Safety reflective tape:Remind pedestrians

● Ergonomic:70% of the battery weight is on the hip and 30% on the shoulders,make the shoulders less weight and fatigue

● The frame will follow your movements to avoid any more pressure on shoulders during working

● Weatherproof:The weatherproof ensure you use the backpack battery even in a rainy day

● Dropping protection:The strictest drooping protection rejects any potential risk from accidents