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Eventually, a scooter battery will fail to hold a charge. When this happens, the battery will need to be replaced. Depending upon your scooter, you may have more than one battery to install. Some scooter batteries are installed just as car batteries are, whereas other scooter batteries plug into a control module and have battery cables that connect to a reset button rather than to the battery's posts.
Items you will need
Turn off the scooter, and remove the key from the ignition, if applicable.
Access the battery bay for your scooter. For example, if replacing a Razor scooter battery, you will have to remove the deck plate underneath the scooter's foot board. A Philips screwdriver may be required to remove screws currently holding the cover onto the battery bay. Note how the battery is placed in the bay and how the wires, red and black, are connected to the battery.
Remove the connector holding the battery wires to the battery. The connection type varies per scooter. There may be a plastic connector plugging the battery cables into the control module. This type of connector will pull apart with your hands. Battery cables screwed tight to the battery posts require an expandable wrench or screwdriver to remove. If you need to loosen the clamps from the post, remove the red (positive) battery cable from the battery first. Then remove the black (negative) battery cable.
Repeat the previous step to disconnect any additional batteries. Some scooters may have more than one battery.
Lift the battery out of the bay. If you unplugged the battery from the control module, a set of red and black battery cables may be connected to a button underneath the battery. You will need to detach these cables to remove the old battery. In a Razor scooter, for example, use a flathead screwdriver to push down on the reset button's release pin. This will allow release of the battery cables; remove the red cable first. If more than one battery exists, lift each battery out one at a time.
- motor scooter #2 image by Aaron Kohr from Fotolia.com