Click the step-by-step guide for instructions on how to install a replacement battery in your Hub.
Start by unplugging the AC power cord from the wall. Then, open the hatch on the underside of the panel by pulling down on the tab and lifting the door up.
The battery will be attached to the panel by two wires that connect to a white harness. Remove the harness from the Hub by gripping the wires close to the harness and giving them a firm tug.
Connect the new battery wire harness to the panel, sliding it into the empty slot. Ensure the battery black switch is in the "ON" position.
Position the new battery in the Hub and close the hatch.
Plug the AC power cord back into the wall and wait for the LED logo to turn solid green.