Golf Cart Voltage and Torque
Torque is the rotational force your motor produces — it's what actually pushes the cart forward, especially from a stop and on inclines. Voltage directly influences how much torque the motor can generate.
How Voltage Affects Torque
Electric motors produce torque proportional to the current flowing through the windings. Higher voltage systems can deliver more current to the motor (especially under load), resulting in greater torque output. In practical terms:
- A 36V motor produces enough torque for flat terrain with a light load
- A 48V motor handles moderate hills with 4 passengers comfortably
- A 72V motor climbs steep grades with full payload without straining
Torque on Hills: Real-World Impact
On a 10% grade (a fairly steep residential street or campground road) with four adults aboard:
| Voltage | Typical Speed on 10% Grade |
|---|---|
| 36V | 5–8 mph (laboring) |
| 48V | 10–14 mph (comfortable) |
| 72V | 14–18 mph (strong, confident) |
The 72V cart doesn't just go faster — it draws less current to achieve the same climbing force, which reduces heat stress on the motor and controller.
Torque and Acceleration
Voltage affects acceleration too. A 72V cart leaps off the line compared to a 36V cart of similar weight. This matters in stop-and-go neighborhood environments where frequent starts are common.
When Torque Really Matters
- Passenger load: Every additional adult (≈150 lbs) increases torque demand by 10–15%
- Cargo: Utility carts carrying tools, landscaping equipment, or supplies need strong low-speed torque
- Towing: Golf carts towing small trailers need sustained torque at low speed
If your use case involves hills, heavy loads, or towing, upgrade from 36V to 48V at a minimum — or choose 72V for maximum confidence. See our best voltage for hills guide. Questions? Call TIGON at 1-844-844-6638.