The SU New 12V 45Ah-120Ah lithium iron phosphate (LiFePO4) battery packs with built-in BMS and a 12.6V charger offer high energy density, long cycle life, and reliability for solar and marine applications. These batteries provide stable power output, lightweight design, and superior safety compared to lead-acid alternatives, making them ideal for off-grid energy systems and boats.
Deespaek Batteries for Marine Use
What Are the Key Features of the SU New 12V Lithium Battery?
The SU New LiFePO4 batteries include a built-in Battery Management System (BMS) for overcharge/over-discharge protection, 2000+ deep cycles, and a 12.6V smart charger for optimal charging. Available in 45Ah–120Ah capacities, they operate efficiently in temperatures from -20°C to 60°C, ensuring performance in extreme conditions.
| Capacity | Cycle Life | Weight |
|---|---|---|
| 45Ah | 3,000 cycles | 11 lbs |
| 100Ah | 5,000 cycles | 24 lbs |
How Does LiFePO4 Technology Enhance Performance?
Lithium iron phosphate chemistry offers thermal stability, minimal self-discharge (3% monthly), and 95% depth of discharge. This results in longer runtime, reduced weight (50% lighter than lead-acid), and zero maintenance compared to traditional batteries.
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LiFePO4 cells maintain stable internal resistance across charge states, ensuring consistent power delivery even at low temperatures. The crystalline structure prevents oxygen release during thermal stress, eliminating fire risks associated with other lithium chemistries. This battery type also demonstrates exceptional charge acceptance – recovering 80% capacity in 1.5 hours when using compatible chargers. Marine users benefit from the technology’s vibration resistance, which prevents cell separation in rough waters.
Where Can These Batteries Be Effectively Deployed?
These batteries excel in solar energy storage, marine applications (trolling motors, navigation systems), RVs, and off-grid setups. Their vibration resistance and waterproof design make them suitable for harsh marine environments.
Why Choose Lithium Over Lead-Acid Batteries?
LiFePO4 batteries last 5–10x longer than lead-acid, deliver consistent voltage under load, and charge 3x faster. They avoid acid leaks and gas emissions, enhancing safety and reducing long-term costs despite higher upfront pricing.
How to Install and Maintain Your Battery?
Installation requires securing the battery in a ventilated area and connecting terminals with proper torque. Use the included 12.6V charger to prevent overcharging. Maintenance involves occasional terminal cleaning and ensuring firmware updates for smart BMS models.
Are They Cost-Effective Long-Term?
Despite higher initial costs ($300–$800), their 10+ year lifespan and zero maintenance result in 60% lower total cost of ownership versus lead-acid batteries. Solar users save $1,200+ in replacement costs over a decade.
When calculating total ownership costs, consider these factors:
| Cost Factor | Lead-Acid | LiFePO4 |
|---|---|---|
| Replacement Cycles (10 yrs) | 3-5x | 0.5-1x |
| Energy Loss | 15-20% | 5-8% |
| Maintenance Hours/Yr | 10-15 | 0-2 |
“The integration of automotive-grade BMS and UL-certified cells in SU New batteries sets a new benchmark for reliability in renewable energy storage. These units are particularly transformative for marine applications, where weight savings directly translate to fuel efficiency and extended range.”
— Renewable Energy Systems Engineer, Maritime Tech Solutions
FAQs
- Q: Can I connect multiple SU New batteries in series/parallel?
- A: Yes, the built-in BMS supports up to 4P4S configurations for 48V systems or expanded capacity.
- Q: Is the battery compatible with existing lead-acid chargers?
- A: No—use only the provided 12.6V LiFePO4 charger to prevent damage.
- Q: What warranty is provided?
- A: 5-year limited warranty covering manufacturing defects and capacity degradation below 70% within 3 years.