How to Wire a Schumacher Charger

by Patrick Nelson

Schumacher Electric has been making vehicle battery chargers since 1946. It's an official supplier to the NASCAR auto-racing franchise. For safety reasons, wiring for a Schumacher charger is a little different depending on whether you are charging the battery with the battery in situ, or have removed the battery and have it out of the vehicle. Wiring the charger can be accomplished by following these steps.

Charging in the Vehicle

Check the polarity of the battery posts. Look for colors and symbols as well as labels. The positive post will be red, marked with a "+" symbol or labeled "Positive." The negative post will be black, marked with a "-" symbol or labeled "Negative." The positive post is often of a larger diameter than the negative.

Check that the negative post is grounded to the chassis by following the wire leading from it.

Connect the red wire from the Schumacher charger to the red post on the battery by clipping it in place. Connect the black wire from the charger to a heavy gauge part of the vehicle's frame by clipping it. Connect the charger to the wall outlet.

Charging the Battery Out of the Vehicle

Check the polarity of the battery posts. Look for colors and symbols as well as labels. The positive post will be red, marked with a "+" symbol or labeled "Positive." The negative post will be black, marked with a "-" symbol or labeled "Negative." The positive post is often of a larger diameter than the negative.

Connect the 24-inch or longer 6-gauge (AWG) wire to the negative post. Connect the red wire from the charger to the positive post. Move as far from the battery as possible and connect the 6-gauge wire to the black wire from the charger.

Connect the charger to the wall outlet.

Items you will need

About the Author

Patrick Nelson has been a professional writer since 1992. He was editor and publisher of the music industry trade publication "Producer Report" and has written for a number of technology blogs. Nelson studied design at Hornsey Art School.

Photo Credits

  • photo_camera Luxury Car sportscar from my luxury car series image by alma_sacra from Fotolia.com