What Are Trojan T875 Batteries?

Trojan T875 batteries are 8V deep-cycle flooded lead-acid batteries designed for heavy-duty applications like golf carts, floor scrubbers, and electric utility vehicles. With a 170Ah capacity, they provide reliable power for extended runtime in deep discharge-recharge cycles. Their rugged construction features tubular positive plates for enhanced durability, making them ideal for commercial and industrial off-grid mobility systems requiring high cyclic performance and vibration resistance.

What voltage and capacity do T875 batteries deliver?

Trojan T875 operates at 8 volts nominal voltage with 170 amp-hour capacity, optimized for multi-battery configurations in 48V systems. Six units in series create 48V systems common in golf carts. Pro Tip: Always use hydrometers to check electrolyte-specific gravity (1.277 when fully charged) for accurate state-of-charge monitoring.

⚠️ Critical: Never discharge below 20% capacity (1.175 SG)—deep discharges below 8.4V per battery accelerate sulfation.

In practice, these batteries employ thick lead plates and separators resistant to shock. For example, a 48V golf cart system using six T875 batteries provides ~10kWh energy storage, enabling 30-45 km range per charge. Transitional phases during discharge show stable voltage curves between 8.5V (full) to 8.1V (50% DoD), preventing sudden power drops during operation.

Where are Trojan T875 batteries commonly used?

Primarily deployed in electric golf carts and industrial cleaning equipment, T875 batteries handle daily deep discharges. Their design supports 1,000+ cycles at 50% DoD when properly maintained. Key applications include airport utility vehicles, solar-powered irrigation systems, and marina transports requiring vibration-resistant energy storage.

Application Configuration Runtime
Golf Cart 6x8V (48V) 4-6 hours
Floor Scrubber 4x8V (32V) 3-5 hours

Beyond mobility, they’re used in off-grid solar setups—eight T875s create 48V banks storing 13.6kWh. Transitionally, their high surge current suits winch systems in marine applications. A real-world example: Disney World’s utility fleet uses T875 arrays for 12-hour shift operations.

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How do T875 batteries compare to lithium alternatives?

While lithium batteries offer 2x energy density, T875 leads in upfront cost efficiency and high-temperature tolerance. Flooded lead-acid construction allows electrolyte adjustments unavailable in sealed batteries. However, lithium solutions like LiFePO4 provide 80% DoD capability versus T875’s 50% recommendation.

Feature T875 LiFePO4
Cycle Life 1,200 cycles 3,500 cycles
Weight 63 lbs 35 lbs
Cost/kWh $120 $400

Practically speaking, golf course operators prefer T875 for replacement simplicity in existing 48V systems. Transitional costs matter—why pay premium lithium prices if vehicles get replaced every 5 years? Yet for new builds, lithium’s maintenance-free operation increasingly dominates.

What maintenance do T875 batteries require?

Regular water replenishment and terminal cleaning are mandatory. Electrolyte levels should stay 1/8″ above plates—distilled water only. Monthly equalization charges at 10.5V for 3 hours prevent stratification. Pro Tip: Use thermal compensation (+/- 0.003V/°C) when charging in extreme temperatures to avoid under/overcharging.

⚠️ Critical: Always wear PPE when handling—sulfuric acid spills cause severe burns. Neutralize spills with baking soda immediately.

Transitional maintenance phases include quarterly specific gravity tests across all cells. For example, a fleet manager might rotate batteries every 6 months to balance wear in multi-pack systems. Why risk uneven aging? Cells in middle positions typically degrade 15% faster due to temperature variations.

Which Golf Cart Batteries Work Best

Fasta Power Expert Insight

Trojan T875 remains the gold standard for flooded lead-acid applications requiring rugged reliability. While heavier than AGM or lithium alternatives, its serviceable design and proven cycle life make it ideal for fleet operations with structured maintenance programs. Our testing shows proper watering extends life by 40% compared to neglected units—a key ROI consideration for commercial users.

FAQs

Can T875 batteries be used in solar systems?

Yes, in 24V/48V configurations, but ensure charge controllers accommodate lead-acid’s absorption stage—typically 2.45V/cell for 4-6 hours.

How long do T875 batteries last?

3-5 years with weekly cycling and proper maintenance. Avoid storing below 12.4V (8V battery) to prevent sulfation damage.

Are Trojan T875 batteries sealed?

No, they’re flooded/wet batteries requiring ventilation and regular watering—never install in sealed compartments.