You need wear rubber insulating gloves for this step.

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