Alwarerc Lensman-Pro 3 Axis DSLR Brushless Gimbal (For Handheld/ DJIS800/ 1000) - Manual (Page 8)

Install back the Upper Handle. Put the Gimbal on the Stand. Release four Screws from the Battery Holder.
Insert that four Screws to the frame as
Shown.
Secure the Battery Holder. Tighten your Battery to the Gimbal before
move on to next step.
8