Aputure Battery Grip 550DL - Manual (Page 22)

Specifications
Battery: 1)One or two Battery Packs LP-E8
2)Six size-AA/LR6 Alkaline batteries
3)AC Adapter Kit ACK-E8
Power Switch: Camera’s power switch
Possible shots: Refer to your camera’s Instruction Manual.
Working temperature range:
0C-+40C
Working humidity: 85%or less
Dimensions: 132x85x107mm