The Difference Between Amps & Volts
Voltage helps determine the number and type of batteries you need for your cart. But when gauging the battery’s overall performance, you’ll want to pay attention to the battery’s amperage. Amperage measures a battery’s power capacity, which tells you how much power your battery will put out while it is in use. The higher the battery’s amperage, the longer your battery will last.
Calculate Voltage by Physical Inspection
Number of Caps x 2 = Battery Voltage
Voltage Options for Golf Cart Batteries
Golf car batteries are available in 6, 8, or 12 volts, which means that you’ll need between three and twelve batteries in order to power an electric golf cart.
How to Choose Your Golf Cart Batteries
1. Determine if Your Golf Cart is Gas or Electric
Gas will require one starting battery like a car.
Electric will usually require numerous batteries depending on the overall voltage (36V or 48V).
2. Validate the Combined Voltage of Your Golf Cart Make/Model (Typically 36 or 48)
Lead-acid batteries are available in 6, 8, or 12-volts.
The average golf cart requires four to six batteries, sometimes 8.
Check the owner’s manual if you do not know the voltage. Or, calculate by counting the number of cells or caps on one of your current batteries (3, 4, or 6).
Multiply that number by 2 to determine your battery voltage. Then, multiply that by the number of batteries found in your cart to determine the voltage.
3. Determine the Desired Amperage Based on Use and Distance Between Charges.
The higher the battery’s amperage, the longer your battery will last on the course.
4. Validate Dimensions
Most golf cars take a standard-sized GC2 group size, but some may have spacers or need a taller/unique footprint.
|Single Batteries||36 Volts||48 Volts||72 Volts|
|6 Volts||6 Batteries||8 Batteries||12 Batteries|
|8 Volts||—–||6 Batteries||9 Batteries|
|12 Volts||—–||4 Batteries||6 Batteries|
Golf Cart Battery Care & Maintenance
Make sure that it’s regularly charged. Allowing the charge to drop too low may shorten its lifespan significantly. A good rule of thumb is to charge your battery every time it drops to 50% of its total capacity.
Avoid overcharging. A standard charger requires that you monitor your battery’s charging process and disconnect once your battery reaches an ideal charge. Another option is to use an automatic charger that will switch itself off to prevent overcharging.
If your golf cart uses flooded batteries, maintain the electrolyte solution inside it by topping it off with distilled or deionized water. Make it a habit to check your battery’s levels about once a month.
A little bit of cleanup goes a long way. Harmful corrosion can build up on your battery’s terminals, and that can damage the battery, sometimes irreparably. If you notice a buildup of white, green, or blue material, you can clean it off using a mixture of baking soda and water and a wire battery terminal brush. Maintain clean battery terminals with anti-corrosion spray or by covering them with terminal protectors.