How Are Golf Cart Batteries Wired?
Golf cart batteries are wired in series — positive to negative down the line — so their voltages add up to the system total. Here is the layout and how to wire it right.
Quick answer: Golf cart batteries are golf cart batteries wired in series: the positive terminal of one battery connects to the negative terminal of the next, all the way down the bank. This adds their voltages together — six 6V batteries make 36V; eight 6V, six 8V, or four 12V make 48V. The two leftover terminals at the ends of the chain (one positive, one negative) become the main pack leads that feed the controller. Series wiring increases voltage while keeping amp-hour capacity the same as a single battery.
01 // How Golf Cart Batteries Are Wired in Series
In a series connection, you link positive-to-negative from one battery to the next, forming a chain. Voltage adds with each battery while capacity (amp-hours) stays constant. This is the opposite of parallel wiring, which adds capacity but not voltage. Carts use series because the motor and controller need the higher voltage. For voltage math, see how to tell if a golf cart is 36 or 48V.
02 // The Physical Layout
Batteries sit in the tray and are joined by short, heavy jumper cables. Starting at the main positive lead, each battery’s positive connects to the next battery’s negative until you reach the main negative lead at the far end. The main leads then run to the solenoid and controller. Cable quality matters here — see 6AWG vs 2AWG cable analysis.
03 // Main Pack Leads
The free positive terminal on one end and the free negative on the other are your pack’s main terminals. These carry full pack voltage and the highest current, so they need clean, tight, properly sized connections. Loose mains cause heat and voltage drop, and can lead to terminal melting.
04 // Wiring Best Practices
- Match all batteries by brand, age, and capacity.
- Clean terminals and apply anti-corrosion protectant.
- Torque connections to spec — snug, not stripped.
- Verify total pack voltage with a meter before connecting the controller.
Doing a full rewire? Follow our rewire guide step by step.
Wiring Summary
Golf cart batteries wired in series chain positive-to-negative so voltages add to 36V or 48V. The two free end terminals become the main pack leads. Match batteries, clean terminals, and verify voltage before connecting the controller.