The SU 12V 100Ah LiFePO4 Battery is a lithium iron phosphate battery with a built-in BMS, designed for solar systems, RVs, and marine applications. It offers high energy density, long cycle life (2,000+ charges), and lightweight construction. Its thermal stability and deep discharge recovery make it safer and more efficient than traditional lead-acid batteries, even in extreme temperatures.
How Does the SU 12V 100Ah LiFePO4 Battery Compare to Lead-Acid Batteries?
The SU LiFePO4 battery outperforms lead-acid in energy efficiency (95% vs. 80%), lifespan (8–10 years vs. 3–5 years), and weight (26 lbs vs. 60+ lbs). It supports deeper discharges (100% Depth of Discharge) without damage and charges 3x faster. Unlike lead-acid, it requires no maintenance and operates efficiently in temperatures from -4°F to 140°F.
| Feature | SU LiFePO4 | Lead-Acid |
|---|---|---|
| Cycle Life | 2,000+ | 300-500 |
| Weight | 26 lbs | 60-70 lbs |
| Charge Time | 2-5 hours | 8-12 hours |
| DOD | 100% | 50% |
For RV owners, the weight advantage alone transforms power management. A typical 400Ah lead-acid bank weighs 480 lbs versus 104 lbs for equivalent LiFePO4 capacity. This 376-lb reduction improves fuel efficiency by 2-4 MPG in Class B RVs. Solar users benefit from faster charging – a 300W solar array can fully recharge the SU battery in 4.2 sun hours versus 12+ hours for lead-acid. The chemistry’s flat discharge curve maintains stable 12.8V output until 95% depletion, unlike lead-acid’s voltage sag that starts at 50% capacity.
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What Safety Features Are Integrated into the SU LiFePO4 Battery?
The built-in BMS protects against overcharge, over-discharge, short circuits, and temperature extremes. LiFePO4 chemistry is inherently non-combustible, unlike lithium-ion. The battery’s flame-retardant casing and cell balancing ensure stable performance. It also automatically enters sleep mode during prolonged inactivity to prevent energy drain.
Why Is This Battery Optimized for Solar Power Systems?
Its high charge efficiency (99%) captures more solar energy, while the BMS maximizes compatibility with solar charge controllers. The low self-discharge rate (3% monthly) preserves energy during cloudy days. With 1,280Wh capacity, it supports off-grid setups for refrigerators, lights, and inverters. It pairs seamlessly with 100W–500W solar panels for sustainable power.
Can the SU Battery Power Trolling Motors Efficiently?
Yes. It delivers 100Ah at 12V (1,200Wh), sufficient for 5–8 hours of continuous trolling motor use. The BMS ensures stable voltage output, preventing motor burnout. Its vibration-resistant design withstands marine environments. Compared to AGM batteries, it provides 30% more runtime and weighs 50% less, improving boat fuel efficiency.
What Environmental Benefits Does the SU LiFePO4 Battery Offer?
LiFePO4 batteries contain no toxic lead or acid, reducing landfill hazards. They’re 99% recyclable, with a lower carbon footprint due to long lifespan. The SU battery’s energy efficiency cuts CO2 emissions by 40% vs. lead-acid in solar applications. Its production uses phosphate, an abundant, non-conflict mineral.
How Does Temperature Affect the SU Battery’s Performance?
It operates optimally between -4°F and 140°F. The BMS adjusts charging rates in cold to prevent lithium plating. At 32°F, capacity drops only 10% vs. 50% for lead-acid. In heat, thermal sensors throttle charging above 122°F. Performance loss is negligible (2% per year) even in harsh climates.
What Cost Savings Can Users Expect Over Time?
Despite higher upfront cost ($400–$600), the SU battery saves $1,200+ over 10 years. It eliminates replacement costs (lasts 3x longer than lead-acid) and reduces energy waste. Solar users save $80+/year on grid electricity. No maintenance fees apply—unlike lead-acid, which requires $50/year for water refills and terminal cleaning.
| Cost Factor | SU LiFePO4 | Lead-Acid |
|---|---|---|
| 10-Year Cost | $600 | $1,800 |
| Energy Loss | 5% | 20% |
| Maintenance | $0 | $500 |
The break-even point typically occurs within 3-4 years. For example: A solar user spending $200/year on generator fuel with lead-acid batteries reduces that cost to $120/year with LiFePO4 due to better efficiency. Marine users save $150/season on fuel from reduced weight. The 10-year warranty further protects against unexpected costs, with most manufacturers offering pro-rated replacement after Year 5.
Expert Views
“The SU 12V 100Ah sets a new standard for renewable energy storage. Its seamless BMS integration and low degradation rate make it ideal for daily cycling in solar setups. We’ve seen a 25% increase in RV solar conversions since adopting this battery—customers love the zero-maintenance design and consistent output.” — Dr. Elena Torres, Solar Energy Systems Analyst.
Conclusion
The SU 12V 100Ah LiFePO4 Battery combines safety, longevity, and eco-friendliness for solar, RV, and marine applications. With its advanced BMS, lightweight build, and 10-year lifespan, it outperforms traditional batteries while reducing long-term costs. Whether powering off-grid homes or trolling motors, it delivers reliable energy with minimal environmental impact.
FAQs
- Does the SU Battery Work with Existing Solar Charge Controllers?
- Yes. It’s compatible with PWM and MPPT controllers. Set the controller to “LiFePO4” mode with a 14.6V absorption voltage and 13.6V float for optimal charging.
- Can I Connect Multiple SU Batteries in Series or Parallel?
- Up to 4 batteries can be connected in parallel for 400Ah capacity. Series connections are not recommended due to the fixed 12V configuration.
- How Long Does It Take to Charge the SU Battery?
- With a 20A charger, it charges from 0% to 100% in 5 hours. A 50A charger reduces this to 2 hours. Solar charging time depends on panel wattage and sunlight.
- Is the SU Battery Safe for Indoor Use?
- Yes. It emits no gases, making it safe for RVs, cabins, and marine cabins. Install in a dry, ventilated area away from direct heat sources.