LiFePO4 Golf Cart Battery Specs

A LiFePO4 pack has two numbers that matter together, and a third that quietly decides whether it works in your cart.

This is the specification page of the golf cart battery set: what 48V 100Ah, 48V 200Ah and 72V 100Ah actually mean in a cart, and which figure people leave out.

  • 15 articles on LiFePO4 packs by voltage and amp-hour
  • Covers 36V, 48V, 72V and 96V packs, from 50Ah to 200Ah
  • The full golf cart battery set sits one level up
Ask us to spec a pack

The three numbers, read together

Two of them are on the label. The third decides whether the pack survives a lifted cart, and it is usually missing.

Voltage and amp-hours give you the range

Multiply nominal voltage by amp-hours to get watt-hours, then take roughly nine tenths of that as usable. A 48V 100Ah pack carries 4.8 kWh, about 4.3 kWh usable, which covers roughly three rounds of 18 holes. A 48V 50Ah pack covers about one and a half. That is the whole range calculation.

The BMS current rating is the third number

It sets acceleration and hill climbing, and it is the figure most often left off a quotation. A 100A continuous BMS in a cart whose controller draws 250A will trip on a grade regardless of how many amp-hours the pack has. Ask for the continuous and peak ratings and compare them to the controller.

Which size for which cart

The choice is narrower than the catalogue suggests once you know the duty.

50Ah for light use, 100Ah for normal, 200Ah for fleets

A 48V 50Ah pack suits a single player on flat ground doing one round. A 48V 100Ah pack covers two players, hills and a second round without charging. A 48V 200Ah pack is a fleet or utility pack, where the cart tows or runs all day and the extra weight is acceptable.

Higher voltage suits heavier work, and costs more everywhere

A 72V pack moves the same load at lower current, which suits hilly courses and utility carts. It also needs a 72V controller, a 72V charger and cables rated for the system. The 36V packs remain the cheapest route for older carts and light duty.

The four specification items that decide fit

01

Nominal voltage and cell count

16 cells makes 51.2V nominal, charged to about 58.4V. That has to sit inside the controller's accepted range, not just near the label.

02

Amp-hours at the pack level

This sets range. Roughly nine tenths of it is usable, which is why a smaller lithium label often beats the flooded set it replaced.

03

BMS continuous and peak current

The figure that decides whether the cart climbs a hill, and the one suppliers omit because it is the expensive part to get right.

04

Physical envelope and terminal layout

Tray footprint, height and post positions. A pack that does not fit is not a cheaper option, it is a return.

Questions people ask before they buy

What does 48V 100Ah mean on a golf cart battery?

A 51.2V nominal LiFePO4 pack carrying 100 amp-hours, so about 5.1 kWh of stored energy and roughly 4.6 kWh usable. In practice that covers two to three rounds of 18 holes with two players, depending on terrain and payload.

Is 48V 200Ah too much for a golf cart?

Not too much, but often more than needed. A 200Ah pack weighs roughly twice a 100Ah one and costs proportionally more. It makes sense for utility carts, towing or all-day fleet use; for a single cart doing a round or two it is paying for range you will not use.

What is the difference between 48V and 72V LiFePO4 packs?

A 72V pack delivers the same power at two thirds of the current, so cables and controller run cooler and the cart handles grades better. It also requires a 72V controller and charger, which makes the whole conversion more expensive.

What BMS rating should a golf cart LiFePO4 pack have?

Above the controller's peak draw, with headroom. If the controller is rated 400A peak, a 100A BMS will trip on acceleration. Match the continuous rating to what the cart actually pulls on the steepest incline, not to the average.

Can I run a 96V LiFePO4 pack in a golf cart?

Only with a 96V-rated controller, motor and charger. These packs are used in utility and light EV applications rather than standard carts. Fitting one to a 48V cart without changing the rest of the drivetrain will damage the controller.

Send the cart and we will spec the size

Tell us the cart voltage, the rounds per day, passengers, terrain and whether the cart tows. We will come back with the amp-hours, the BMS current rating and the physical envelope before you order.