Power Wheels Jeep (Northeast Lagrange)

1990 Power Wheels Jeep model 86225- Runs, but only one rear wheel has power, and hard plastic tires don't grip well, so it is low on traction.
New batteries from 3 years ago, but connector style changed from original batteries so original connector was spliced into the new batteries along with a fuse that was inside the original batteries but not in the new ones. See picture.

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