Free tool
Battery and range calculator
Work out what your pack can actually deliver, not what the label says. Then see honestly what lithium would change for the way you use the cart.
Your pack
Printed on the battery label. Common lead acid golf cart batteries are 105 to 235 Ah.
More settings
Estimated range
20.2miles
On a full charge, in the conditions you picked
Run time
1.7hours
At about 12 mph average
Rated capacity
5,040Wh
48V × 105Ah
Actually usable
2,520Wh
50% of rated
Pack wiring
8 × 6V batteries wired in series
Flooded lead acid
If you converted to lithium
About 34.3 miles instead of 20.2
Same pack voltage, same amp hour rating, roughly 70 percent more usable range. That is not marketing, it is just that lead acid can only safely give you about half its rated capacity while lithium gives you 80 to 90 percent of it. You also drop 250 to 350 pounds off the cart and stop watering batteries.
Treat this as an estimate
How a pack makes its voltage
Golf cart batteries are wired in series, which means the positive post of one connects to the negative post of the next, in a single chain all the way through the pack.
Wiring them that way adds the voltages together while the amp hour capacity stays the same. Eight 6 volt batteries in series make a 48 volt pack. Six 8 volt batteries make 48 volts too, and so do four 12 volt batteries.
The two posts left over at the ends of the chain are the pack terminals, and those are what feed the controller.
This is also why one bad battery drags down the whole pack. Everything runs through every battery in turn, so the weakest one sets the limit for all of them.
Common questions
- How far can a golf cart go on one charge?
- A typical 48 volt cart with a healthy 105 amp hour lead acid pack does roughly 20 to 25 miles in mixed conditions. The same pack in lithium does closer to 35 to 40, because lithium gives you nearly all its rated capacity while lead acid can only safely give you about half.
- Why can I only use half of a lead acid battery?
- Discharging flooded lead acid past about 50 percent of its rated capacity causes sulfation that permanently reduces how much the pack can hold. You can physically go deeper, but doing it regularly will kill the pack years early.
- How many batteries are in a 48 volt golf cart?
- It depends on the individual battery voltage. Eight 6 volt batteries, six 8 volt batteries, or four 12 volt batteries all make 48 volts when wired in series.
- Does cold weather reduce golf cart range?
- Yes, noticeably. Battery capacity drops as temperature falls, and a lead acid pack can lose a meaningful portion of its usable range on a genuinely cold Montana day. Lithium handles cold better but is not immune.