With the DJI Mavic 2 Battery Charging Hub you can charge up to 4 Mavic 2 Intelligent Flight batteries at the same time. You connect this hub with a home and car charger to your socket or the 12V socket of your car. So all your batteries are charged in about 3.5 hours. The battery that is the least empty will be charged first. This gives you a fully charged battery as soon as possible.
Please note that this hub does not contain a charger.