How to install a backup battery (external battery pack)

Step 1：Open the wire board, and disconnect the red wire from the silver current device, then connect it to the black dual-head current device.

Step 2：Remove the seat and attach the backplate for the backup battery to the frame using the matching screws (3 screws). Connect the current wire from the backup battery through the hole in the bottom of the frame to the black double-ended current unit.

Step 3：Align the battery with the pin and insert it, then press the battery button to ensure it's functioning properly (a lit battery indicates normal operation, with green indicating battery level). Finally, reattach the seat to complete the installation!