The DJI Avata Battery Charging Hub can charge four batteries in sequence, which greatly enhances the charging efficiency.
DJI Avata Battery Charging Hub × 1
Operating Temperature Range: 5° to 40° C (41° to 104° F)
Input: 5-20 V, max 5 A
Output: 17 V
Charging Time: Approx. 47 mins (tested using the DJI 65W Portable Charger and subject to temperature)