The 6 volt 0.5 amp coaxial battery charger for the Huffy Flat Kart 6 volt go-kart and the Huffy Disney Minnie may also be the perfect charger for a number of small electric kids' ride-on toys. The charger uses a male coaxial plug connector with a 5.5 mm outside diameter and a 2.1 mm inside diameter and provides an output of 0.5 amps.

The coaxial connector is sometimes referred to as a "barrel plug" due to its cylindrical shape.

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