How to Modify a 12 Volt Battery to Fit a Power Wheels Jeep

Written by andrea walk
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Power Wheels are replicas of real-time cars, trucks, motorcycles, vans and jeeps. They are made by Fisher Price and accommodate children from toddler-sized to 6-7 years of age. Power Wheels are run off different sized rechargeable batteries. The common battery sizes are 6-volt, 10-volt and 12-volt. Each battery comes with its own type of special connection. One popular type of Power Wheels vehicle is the Jeep Wrangler, which uses a 10-volt battery. In order to modify it to take a larger 12-volt Power Wheels battery like the ones that fit inside the Power Wheels 4 X 4 pickup truck, you need to do some rewiring.

Skill level:
Moderately Easy

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Things you need

  • Power Wheel 12-volt battery
  • 12-volt Power Wheel wall charger
  • Power wheel 12-volt battery connector end
  • Wire strippers
  • Electrical tape

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Instructions

  1. 1

    Connect the Power Wheel 12-volt wall charger to the 12-volt Power Wheel battery and allow it to charge for a full 18 hours for the first charge. Every charge after that should be 14 hours.

  2. 2

    Open the bonnet of the Power Wheels Jeep and use a screwdriver to remove the two screws holding the plastic engine manifold in place to reveal the battery.

  3. 3

    Pinch the tabs in on the plastic wiring harness and unplug the old 10-volt battery inside the Jeep. Remove the battery.

  4. 4

    Use wire strippers to snip the end of the wiring harness that runs from the Power Wheels Jeep.

  5. 5

    Grasp the 12-volt battery connector end and then strip about an inch of wire from both the positive and negative cables. Wrap the end of the positive cable on the 12-volt connector to the wire running from the Power Wheels Jeep. Do the same thing to connect the negative wire to the 12-volt connector and then wrap both connections with electrical tape.

  6. 6

    Place the fully charged 12-volt battery into the Power Wheels Jeep and then plug the wiring harness into the battery.

  7. 7

    Replace the plastic engine cover and screw in the two retaining screws.

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