How long do Trojan golf cart batteries last?
Trojan golf cart batteries typically last 4–6 years with proper maintenance, depending on usage patterns and care. Deep-cycle lead-acid variants like the T-105 require regular watering, balanced charging, and avoidance of deep discharges below 50% capacity to maximize lifespan. Lithium-ion Trojan models (e.g., Trillium) extend longevity to 8–10 years but cost 2–3× more upfront.
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What factors affect Trojan battery lifespan?
Discharge depth, charging habits, and temperature critically impact longevity. Deep discharges below 20% state-of-charge accelerate plate sulfation in lead-acid models. Pro Tip: Use a 3-stage charger maintaining 14.4–14.8V absorption phase—undercharging leaves sulfate crystals intact, reducing capacity by 15–20% annually.
Trojan’s flooded lead-acid batteries lose ≈30% capacity when operated below 0°C (32°F). For example, Arizona-based golf courses report 6-year lifespans versus 4 years in Minnesota’s subzero winters. Transitional phrase: Beyond temperature, improper watering causes irreversible damage. Electrolyte levels should cover plates by 6–8mm—exposed plates oxidize, increasing internal resistance. Warning: Never add acid—only distilled water compensates for evaporation losses.
How do Trojan lithium batteries compare?
Trojan’s Trillium lithium series offers 2,000+ cycles at 80% depth-of-discharge (DOD) versus 500–800 cycles for lead-acid. They maintain stable voltage during 90% discharge, unlike lead-acid’s 40% voltage sag. Pro Tip: Lithium’s 95% round-trip efficiency reduces charging time by 50% compared to lead-acid’s 70–80% efficiency.
| Metric | Trojan T-105 (FLA) | Trojan Trillium (LiFePO4) |
|---|---|---|
| Cycle Life | 750 cycles @50% DOD | 2,000 cycles @80% DOD |
| Weight | 62 lbs | 36 lbs |
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FAQs
Only lithium models (Trillium) reach 8–10 years with nightly 80% DOD use. Lead-acid types degrade to 50% capacity in 4–5 years even with ideal maintenance.
How often should I water Trojan batteries?
Check weekly during heavy use—add distilled water when plates become visible. Never let electrolyte dip below plate tops, as dry areas sulfate irreversibly within 48 hours.