How to Install a Voltage Reducer on a Golf Cart

by Sarka-Jonae Miller

Most golf carts emit 36 or 48 volts. A voltage reducer allows the voltage from the entire battery to be reduced to 12 volts. This allows the electrical load that comes from accessories to be evenly taken from each of the six batteries. Otherwise, there will likely be burnouts, and accessories such as radios might cut out every time the engine is turned on.

How to Install a Voltage Reducer

The batteries are located under the seat. Lift the seat cushion to expose the batteries. There should be six batteries.

Disconnect a terminal to break the circuit.

Connect the voltage reducer's B- terminal to the negative terminal on battery one.

Connect the voltage reducer's +12V terminal to the accessory's hot wire (positive, probably red). The accessory could be a light or a radio.

Connect the voltage reducer's -12V terminal to the accessory's ground wire (negative, probably black).

Mount the voltage reducer in the dash area of the cart.

Reconnect the initial terminal and reattach the seat cushion.


  • check Invest the extra money to get a heavy-duty voltage reducer if you want to have a radio. The word "hot" means a positive terminal and "ground" means a negative terminal.


  • close If you do not know a lot about electricity, have a friend that does or a professional electrician help you. A wrong move can be dangerous.

About the Author

Sarka-Jonae Miller has been a freelance writer and editor since 2003. She was a personal trainer for four years with certifications from AFAA and NASM. Miller also worked at 24 Hour Fitness, LA Fitness and as a mobile trainer. Her career in the fitness industry begin in 2000 as a martial arts, yoga and group exercise instructor. She graduated cum laude from Syracuse University.

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