The Fairplay ZX 5.5 48V golf cart requires 48V lithium iron phosphate (LiFePO4) battery systems with capacities ranging 100Ah-165Ah for optimal performance. These batteries feature enhanced thermal stability (operating at -20°C to 40°C) and typically use standard EVE/Lishen cells in configurations like 16S1P (51.2V nominal). OEM-grade models from manufacturers like Xintupower and Chang Hi Battery provide seamless compatibility with factory tray dimensions and M8 terminal connections, supported by SGS/MSDS certifications.
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What voltage and capacity does the Fairplay ZX 5.5 require?
The Fairplay ZX 5.5 operates on a 48V DC system needing 100Ah minimum capacity for full-day golf course operation. LiFePO4 configurations deliver 51.2V nominal voltage (16 cells in series) with 120-160Ah variants extending runtime to 35-50km per charge cycle.
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This golf cart’s battery compartment accommodates standard 48V lithium packs measuring 530x250x300mm (±5mm tolerance). Pro Tip: Match the original tray’s ventilation design—closed-top batteries with IP65 rating prevent debris ingress during off-road use. For example, the Xintupower 48V165AH model replaces lead-acid equivalents while reducing weight by 60%. Why risk terminal corrosion? Always verify M8 bolt compatibility to prevent connection arcing.
How do LiFePO4 batteries enhance ZX 5.5 performance?
LiFePO4 chemistry provides 4,000+ cycles at 80% depth-of-discharge versus 500 cycles in lead-acid equivalents. Their flat discharge curve maintains 51V±1V under 100A loads, preventing motor power drops during hill climbs.
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Advanced BMS systems in 48V golf cart batteries monitor cell balancing with ≤20mV deviation. Compared to AGM batteries, LiFePO4 reduces charging time from 8 hours to 3.5 hours using 20A chargers. Real-world example: A 48V120Ah pack extends ZX 5.5’s runtime from 18 holes to 36 holes per charge. But what about cold climates? Quality LiFePO4 cells retain 80% capacity at -20°C versus lead-acid’s 50% performance drop.
| Parameter | LiFePO4 | Lead-Acid |
|---|---|---|
| Cycle Life | 4,000 | 500 |
| Weight (48V100Ah) | 29kg | 68kg |
| Charging Efficiency | 98% | 85% |
What physical dimensions ensure compatibility?
Fairplay ZX 5.5 battery trays measure 510x230x310mm (LxWxH)—select lithium packs within ±5mm tolerance. Terminal orientation must align original +/- positioning (left-negative for most models) using M8 studs with 14mm spacing.
Deep-cycle lithium batteries require 2cm clearance for BMS cooling fins. Pro Tip: Use shock-absorbent foam padding—golf cart vibrations exceeding 3G can damage unprotected cells. A common mistake? Installing taller 52V batteries (58.4V charged) without verifying headroom, causing enclosure warping. Always cross-check manufacturer spec sheets against your cart’s compartment blueprints.
Are there weight limitations for replacements?
The ZX 5.5’s chassis supports up to 75kg per battery compartment. LiFePO4 packs typically weigh 28-35kg (48V100Ah-165Ah), whereas equivalent lead-acid units reach 65-80kg—lithium replacements improve power-to-weight ratios by 2.3x.
Lighter batteries reduce tire wear—pressure decreases 15% less per round versus lead-acid systems. However, ensure weight distribution remains balanced between compartments. For example, twin 48V60Ah batteries (34kg each) may outperform a single 48V120Ah unit if the cart’s suspension isn’t rated for concentrated loads. Why risk frame stress? Distribute mass within OEM-recommended thresholds.
| Capacity | LiFePO4 Weight | Lead-Acid Weight |
|---|---|---|
| 100Ah | 29kg | 68kg |
| 150Ah | 43kg | 102kg |
What certifications guarantee safety?
Prioritize batteries with UN38.3 and IEC62133 certifications—these validate shock/vibration resistance up to 7Hz frequencies (critical for golf cart terrain). UL1973 certification ensures battery management systems (BMS) provide overcurrent protection >300A and thermal cutoff at 80°C±5°C.
High-quality packs feature automotive-grade ABS enclosures with IP67 ratings, preventing water ingress during wet course conditions. Pro Tip: Reject suppliers without CE/RoHS documentation—non-compliant cells risk thermal runaway during 2C fast charging. Real-world example: A certified 48V150Ah battery withstands 500kg crush tests, while uncertified units fail at 200kg, endangering passengers during collisions.
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FAQs
Technically possible but discouraged—voltage imbalance between packs accelerates BMS failures. Use single 48V systems with matched internal resistance (≤5mΩ variance cell-to-cell).
How long do lithium batteries last in the ZX 5.5?
8-10 years with proper maintenance—avoid 100% discharges and store at 50% SOC during offseason. Cycle life halves if regularly discharged below 20%.
Does cold weather affect lithium performance?
Premium LiFePO4 with built-in heaters maintains >90% capacity at -20°C. Standard models may require insulation blankets below 0°C to prevent charging limitations.
