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What Is The T-105 Plus 6V Flooded Battery?
The Trojan T-105 Plus 6V flooded battery is a deep-cycle lead-acid battery designed for heavy-duty applications like golf carts, material handling equipment, and renewable energy systems. Operating at 6V with a 255Ah capacity, it uses flooded electrolyte technology requiring periodic water maintenance. The “Plus” designation indicates enhanced plate design and thicker active material for improved cycle life compared to the standard T-105 model, delivering 10–15% longer runtime in demanding discharge scenarios.
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What distinguishes the T-105 Plus from standard T-105 batteries?
Thicker plates and reinforced grids elevate the T-105 Plus, providing 255Ah vs. the T-105’s 225Ah. The upgraded design supports 1,200 cycles at 50% depth of discharge (DoD), outperforming its predecessor’s 800–1,000 cycles. Engineers optimized paste density for reduced sulfation, particularly beneficial in partial-state-of-charge applications like solar storage.
In practical terms, the T-105 Plus delivers 30Ah more capacity through 11% thicker positive plates (2.8mm vs. 2.5mm). This requires longer formation cycles during manufacturing—96 hours versus 72 hours for standard models. Pro Tip: Pair with periodic equalization charges (15.5V for 2–3 hours) to maintain electrolyte stratification resistance. For example, in solar systems, the Plus variant maintains 80% capacity after four years versus three years for standard units. Maintenance remains critical—check electrolyte levels monthly and use only distilled water to prevent mineral contamination.
What applications suit the T-105 Plus best?
This battery excels in high-cycling environments requiring sustained 6V power. Golf cart owners benefit from 15% extended range per charge. Material handling equipment like pallet jacks achieve 8–10 hour shifts. Off-grid solar systems leverage its tolerance for partial charging cycles.
The 1,200 lb/in² compression pressure rating makes it durable for vibration-prone uses. Unlike AGM batteries, flooded types like the T-105 Plus handle occasional overcharging better—a common issue in solar setups with variable charge controllers. Real-world example: A six-battery 36V golf cart setup provides 1,530Ah total capacity, enabling 45–55 miles per charge depending on terrain. What about cold weather? While capacity drops 20% at 0°F, the flooded design resists freezing damage better than sealed alternatives when properly charged.
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How does maintenance impact T-105 Plus performance?
Water replenishment and terminal cleaning dictate longevity. The battery consumes 0.5–1 oz of water per cell monthly under normal cycling. Use only distilled water—minerals in tap water accelerate corrosion. Terminal maintenance requires quarterly cleaning with baking soda solution to prevent voltage drops.
Hydrometer checks should show 1.277 specific gravity when fully charged. If variations exceed 0.030 between cells, perform equalization. Pro Tip: Install hydrocaps to reduce water loss by 50%. Maintenance intervals stretch to 3 months with this $10 upgrade. But remember—even with hydrocaps, visual inspections remain mandatory. Neglected cells expose plates, causing permanent capacity loss within 10 discharge cycles.
| Maintenance Factor | T-105 Plus | AGM Alternative |
|---|---|---|
| Watering Frequency | Monthly | Never |
| Ventilation Required | Yes | No |
| Corrosion Risk | High | Low |
Redway Battery Expert Insight
FAQs
Every 10–15 cycles or monthly. Use a 15.3–15.5V charger for 2–3 hours, monitoring electrolyte temperature stays below 125°F.
Can I mix T-105 Plus with older batteries?
Never combine new and aged batteries in series/parallel—capacity imbalances cause premature failure. Replace entire banks simultaneously.
What’s the typical lifespan?
5–7 years with proper maintenance. Capacity drops below 80% after 1,200 cycles at 50% DoD. Environmental factors like high temperatures reduce longevity 20% per 15°F above 77°F.
