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What Battery Fits A Fairplay Golf Cart?
Fairplay golf carts typically use 48V lead-acid battery systems, with configurations of 6x8V or 8x6V batteries wired in series. Modern upgrades often employ lithium-ion (LiFePO4) alternatives for their higher cycle life (3,000+ cycles) and 50% weight reduction. OEM Fairplay models like the T5 and T7 require 180–250Ah capacity for 35–50 miles per charge. Always verify voltage/terminal alignment before swapping chemistries.
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What voltage do Fairplay golf carts require?
Fairplay carts use 48V systems, with older models occasionally running 36V. Lead-acid setups require 6-8 batteries (6V/8V) to reach nominal voltage, while lithium replacements use single 48V packs. Key spec: Discharge rates must exceed 100A for hill-climbing. Pro Tip: Test existing battery tray dimensions—some LiFePO4 upgrades need spacer kits.
Voltage compatibility is non-negotiable. A 48V Fairplay motor draws ~56A at full load, requiring batteries with continuous discharge ratings (CDR) ≥150A. Lead-acid users face voltage sag: a 48V pack can dip to 42V under load, reducing speed. Lithium maintains 46-50V. For example, replacing 8x6V Trojan T-105s (48V/225Ah) with a Redway 48V 100Ah LiFePO4 cuts weight by 290 lbs but maintains range via 80% depth of discharge. Warning: Never mix lead-acid and lithium in series—voltage mismatches will damage controllers.
| Battery Type | Weight (lbs) | Cycle Life |
|---|---|---|
| Lead-Acid (8x6V) | 540 | 500 |
| LiFePO4 (Single 48V) | 130 | 3,500 |
Can I upgrade to lithium batteries in a Fairplay cart?
Yes, but voltage/BMS compatibility is critical. LiFePO4 offers 3x longer lifespan but requires 58.4V chargers. Ensure motor controllers accept 48V lithium input. Pro Tip: Install a shunt meter to track state-of-charge—lithium voltage curves flatter than lead-acid.
Upgrading involves more than just swapping cells. Lead-acid chargers deliver 57-60V, which can overcharge lithium packs (max 58.4V). A lithium-specific charger with CC-CV staging is mandatory. The BMS must also handle peak regenerative currents from Fairplay’s motor braking. For example, a 48V 100Ah lithium pack with 200A BMS supports 10kW bursts, whereas stock lead-acid struggles beyond 5kW. Practically speaking, acceleration improves 20-30%, but what about cold climates? Lithium efficiency drops below -4°F without heated cells—a feature in premium Redway packs. Always confirm terminal types: Some Fairplay models use auto-style posts versus standard F2 connectors.
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How long do Fairplay golf cart batteries last?
Lead-acid lasts 4-6 years (500 cycles), while lithium reaches 10+ years (3,000 cycles). Capacity fade rates depend on discharge depth: Lead-acid degrades 20% faster when discharged below 50%. Pro Tip: Equalize lead-acid every 60 charges to prevent sulfation.
Battery lifespan hinges on maintenance. A Fairplay T7 discharging 70Ah daily would exhaust 225Ah lead-acid in ~3 years (500 cycles at 80% DoD). Lithium handles 80% DoD without degradation—extending calendar life. But what kills batteries faster? Heat. Lead-acid loses 50% life expectancy above 90°F, while lithium withstands 140°F. Real-world example: Arizona users report 3-year lead-acid lifespans versus 8+ years for lithium. Critical: Store carts at 50% charge if unused for months—full charge crystallizes lead plates or stresses lithium anodes.
What are the best lithium batteries for Fairplay carts?
48V LiFePO4 packs with 100-200Ah capacities suit most Fairplay models. Prioritize UL-listed packs with IP65 ratings, 200A+ BMS, and 1C charge rates. Redway’s 48V 105Ah model offers Bluetooth monitoring for voltage/temp tracking.
When evaluating lithium, balance amp-hours against weight. A 150Ah LiFePO4 provides 7.5kWh (vs. lead-acid’s 5.4kWh) but weighs 150 lbs less. Key specs: Cells must be Grade A (EVE or CATL), not recycled. For example, Redway’s modular design allows capacity expansion from 100Ah to 300Ah using parallel modules. Pro Tip: Check pack dimensions—some require removing 2-3 lead-acid trays. Warranty matters: Top brands offer 5-7 years; generic imports often cap at 2. Heard of thermal runaway risks? Premium packs include ceramic separators and gas vents, unlike low-cost options.
| Brand | Capacity | Price |
|---|---|---|
| Redway | 105Ah | $2,199 |
| EcoBattery | 105Ah | $2,599 |
Redway Battery Expert Insight
FAQs
No—series systems require uniform chemistry. Mixing causes voltage imbalance, BMS faults, and fire risks.
Do lithium batteries void Fairplay warranties?
Only if improperly installed. Use UL-certified packs and retain OEM controllers to preserve coverage.
What’s the cost difference between lead-acid and lithium?
Lithium costs 2x upfront ($2,200 vs. $1,100) but saves $1,800 over 10 years via longer lifespan and zero maintenance.
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