Battery Charging Hub. Features: The Mavic Air Battery Charging Hub is designed for use with the Mavic Air Intelligent Flight Battery. When used with the Mavic Air Power Adapter, it can charge up to four Intelligent Flight Batteries in sequence according to their power levels, and from high to low. The Battery Charging Hub does not include a charger. Input: 13.2V, 0-5A. Compatible Battery Model: PB1-2375 mAh-11.55V. Weight: 94g. Charging time (4 batteries): 3hr 30min (16° to 40°C) and 6hr 20min (5° to 15°C). Compatibility: Mavic Air Intelligent Flight Battery/Battery Charger/Car Charger.