Things You'll Need
Instructions
Remove the four screws in the center of the top of the Razor deck with a Philips-head screwdriver.
Remove the two hexbolts in the middle of the Razor deck with the 4 mm Allen wrench.
Remove the two screws and locknuts at the rear of the top deck with a Philips-head screwdriver and an 8 mm open wrench.
Pull off the deck plate with your hands.
Remove the two screws on the battery bracket with the Philips-head screwdriver.
Locate the white plastic connectors that connect each battery to the control module. Cut the zip tie with a pair of scissors attached to each battery's white plastic connector.
Disconnect each battery's white plastic connector from the control module's white plastic connector with your hands.
Follow the single black and red wires on to each battery to the reset button. Unplug the wires from the reset button with your hands.
Lift the batteries out of the battery tray one at a time.
Place the two new batteries in the battery tray. Then reconnect the white battery connector to the control module's connector. Plug the red and black wires into the reset button, in any order. Reattach the battery bracket and deck plate.