Things You'll Need
Instructions
Remove the top of the seat by popping the lid out from the interior of the seat at the edges.
Locate the battery inside the seat compartment. It will be on the side of the seat closest to the handlebars. Disconnect the negative wire from the battery by pulling it out of its connection compartment, then disconnect the positive wire in the same manner.
Remove the old battery by gently pulling it out of its compartment.
Place the new battery inside the compartment. Attach the negative wire on the bike to the negative wire input on the battery by pushing it inside the input compartment. Attach the positive wire to the battery's input in the same way. Replace the lid on the seat.