The DJI Car Charger for Inspire 2 / Ronin 2 is, you guessed it, a 12v car charger designed to charge the battery of the DJI Inspire 2 Drone and Ronin 2 3-Axis Handheld Stabilizer. It can be used to charge an individual DJI TB50 Intelligent Flight Battery one at a time, or in conjunction with the DJI Charging Hub for Inspire 2 / Ronin 2 to charge four batteries at once.