The DJI Mavic 3 Battery Charging Hub w/ 65W Portable USB Charger is an add-on accessory for the Mavic 3 / Mavic 3 Cine that offers an additional 3-battery charging hub for any extra batteries you add to your rental. The 65W USB Charger can charge a single Mavic 3 battery or RC Pro controller in about 1.5 hours, and the charging hub can detect which battery is least drained and recharge it first, giving you more flight time while the other batteries charge.