Lithium Golf Cart Battery Voltage Chart

LiFePO₄ (lithium iron phosphate) batteries have a fundamentally different voltage profile than lead-acid. The most important difference: the voltage stays nearly flat across 80% of the usable range, making voltage-based SOC estimation difficult without a BMS display.

48V Lithium (LiFePO₄) Voltage Reference

This applies to 16-cell packs (16S configuration), the most common 48V lithium format:

State of Charge	Pack Voltage	Per Cell
100% (fully charged)	58.4V	3.65V
90%	54.0–55.0V	3.38–3.44V
80%	53.0–54.0V	3.31–3.38V
60%	52.0–53.0V	3.25–3.31V
40%	51.5–52.5V	3.22–3.28V
20%	51.0–52.0V	3.19–3.25V
10%	49.0–51.0V	3.06–3.19V
BMS cutoff	~40–44V	2.50–2.75V

Key insight: The difference between 80% and 20% SOC is only about 1–2V — nearly impossible to measure accurately with a basic multimeter. This is why a BMS display is essential for lithium packs.

72V Lithium (LiFePO₄) Voltage Reference

For 24-cell packs (24S configuration):

State of Charge	Pack Voltage	Per Cell
100% (fully charged)	87.6V	3.65V
80–20% (flat range)	76.8–81.6V	3.20–3.40V
10%	73.5–76.0V	3.06–3.17V
BMS cutoff	~60–66V	2.50–2.75V

How to Monitor Lithium SOC Accurately

Use the BMS display if your pack includes one (most premium packs do)

Install a coulomb counter (e.g., Bayite BTC6V12A or similar) — measures actual current in/out for accurate SOC

Track your driving patterns — if you know your pack delivers 60 miles per charge and you drove 30, you're at ~50%

Trust the cart — the BMS will cut power before the pack is damaged; you'll feel it as a sudden loss of acceleration

For help choosing a lithium pack with proper BMS monitoring, call 1-844-844-6638 or visit any TIGON location.

Golf Cart Lithium Battery Voltage Chart