Power your RS 3 gimbal stabilizer for an extended shooting day with this BG21 Grip from DJI. This power handgrip extends your gimbal handle and features a single 18650 battery that can power your gimbal for up to 12 hours on a full charge. The battery can be charged in the grip using the USB Type-C input, and when using a USB Type-C to Type-C cable, you can utilize 18W PD fast charging with a compatible power source for a full charge in only 2.5 hours. The battery can also be removed and charged in an optional external charger.
Note:
 
The BG21 Grip is not compatible with DJI RS 3 Pro or DJI RS 2.
Compatibility
DJI RS 3 gimbal stabilizer
            Battery Chemistry	Lithium-Ion
Battery Type	1 x 18650 2S, Removable
Battery Capacity	3000 mAh, 21 Wh
Voltage	6 to 8.4 VDC
Input Voltage	5 V/2 A
9 V/2 A
12 V/1.5 A
Runtime	12 Hours
Charging Time	2.5 Hours on PD Fast Charge
Charging Input	1 x USB Type-C
Dimensions	4.7 x 1.7 x 1.2" / 120 x 42 x 31 mm
Weight	7.1 oz / 200 g