Can You Use 4 12-Volt Batteries in a 48-Volt Golf Cart?

Why Consider 12V Batteries for a 48V Golf Cart?

Most 48V golf carts use either 6 × 8V or 8 × 6V lead-acid batteries. But many owners consider switching to 4 × 12V batteries for:

• Lower cost
• Easier sourcing
• Simpler wiring

But is this a smart upgrade—or a shortcut to future issues?

Let’s explore performance, safety, and smarter alternatives.

Technical Feasibility: Is 4×12V = 48V Really That Simple?

Technically, yes—4 × 12V in series = 48V.

But voltage alone isn’t everything. In practice, key performance differences emerge.

System Comparison: 6×8V vs. 4×12V

 Critical Rule: Always use identical batteries—same brand, type, capacity, and production date—to prevent imbalance and premature failure.

Conclusion: Technically feasible, but expect trade-offs in performance, lifespan, and reliability.

 Pros & Cons of a 4×12V Battery Setup

 Which Battery Type Is Best?

Flooded Lead-Acid

300–500 cycles | Requires water top-ups | Lowest cost 

❗High upkeep, prone to sulfation

AGM / Sealed Lead-Acid

500–800 cycles | Maintenance-free | Moderate

✔ Cleaner, safer, heavier

LiFePO₄ (Best Choice)

2000+ cycles | Maintenance-free | Higher upfront

Long life, low self-discharge, safer & cleaner

Tip: Always choose LiFePO₄ batteries with built-in BMS for safety, performance, and low maintenance.

Key Specs You Must Match

• Amp-Hour (Ah): Match or exceed the original battery pack
• Discharge Rate (C-rate): ≥ 0.5C to support motor startup
• Voltage Consistency: All 4 batteries must be same type, brand, capacity, and age

 Safety & Compatibility Checklist

✔ Confirm battery bay dimensions

✔ Ensure proper ventilation

✔ Use high-quality cables and terminals

✔ Avoid mixing battery brands, ages, or chemistries

✔ When unsure, consult a technician

Better Alternative: Why a Drop-In 48V LiFePO₄ Pack Makes Sense

Instead of linking 4×12V batteries, consider a single 48V LiFePO₄ drop-in pack:

 Result: Fewer headaches, better performance, and lower total cost of ownership.

Final Verdict: Is 4×12V a Good Idea?

Yes—you can use 4 × 12V batteries in a 48V golf cart.

But you’ll face:

• More maintenance
• Reduced driving range
• Shorter lifespan (especially lead-acid)

On a tight budget? AGM or flooded lead-acid can work—with care.

Want long-term value and less hassle? Go with a drop-in 48V LiFePO₄ system. It’s safer, cleaner, and built to last.

FAQ: Your Top Questions Answered

Q: Can I mix different brands or old and new batteries?

A: Never. Mixing batteries can cause imbalance, uneven charging, and premature failure.

Q: Will switching to a 48V lithium pack require a new controller?

A: Possibly. Some older controllers aren't lithium-compatible—check with the manufacturer or dealer.

Q: How do I know if my batteries need balancing?

A: Measure each battery’s voltage under load. If one is significantly lower, an imbalance is likely.

Ready to Upgrade?

Thinking about switching your golf cart to lithium?

We offer plug-and-play 48V LiFePO₄ kits with built-in BMS, easy install, and top-tier safety.

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Questions? [Talk to Our Experts] — we’re happy to help.