Remove the screws and take off the battery cover(9g). The screws attaching the cover are two black flathead flat tip screws. Disconnect the battery(5-pin). This step does not remove the battery.

Battery cover length: 113mm

Width: 36mm

Height: 12mm

Screw diameter: 2.6mm

Thread length & Thread quantity: 4mm & 4

Head diameter：4.8mm