The KW Waterproof 36V 150Ah/100Ah/120Ah LiFePO4 battery pack with BMS offers high energy density, durability in harsh environments, and seamless integration with marine, solar, and EV systems. Its waterproof design, built-in Battery Management System (BMS), and compatibility with a 10A charger ensure reliable performance for fishing boats, RVs, and solar setups. This lithium iron phosphate (LiFePO4) battery excels in safety, longevity, and fast charging compared to traditional lead-acid alternatives.
Deespaek Batteries for Marine Use
How Does the LiFePO4 Chemistry Enhance Battery Performance?
LiFePO4 batteries provide stable thermal performance, reducing fire risks. They deliver 2,000–5,000 cycles at 80% depth of discharge (DoD), outperforming lead-acid’s 300–500 cycles. The 36V configuration ensures efficient power delivery for high-demand applications like trolling motors, while the BMS prevents overcharging, overheating, and short circuits.
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The unique olivine crystal structure of LiFePO4 cells minimizes oxygen release during thermal stress, making them inherently safer than other lithium-ion variants. This chemistry also maintains 80% capacity after 2,000 cycles even when regularly discharged to 90% DoD, compared to lead-acid batteries that degrade rapidly beyond 50% DoD. For marine applications, this translates to consistent power output during multi-day fishing trips without voltage sag. The flat discharge curve ensures devices like fish finders and navigation systems receive stable voltage until the battery reaches 10% remaining capacity.
Why Is the BMS Critical for Marine and Solar Applications?
The integrated BMS monitors cell balance, voltage, and temperature. It automatically disconnects during overloads or extreme temperatures (-20°C to 60°C), ensuring safety in wet or variable conditions. This feature is vital for fishing boats and solar systems exposed to moisture, vibration, and temperature fluctuations.
In solar installations, the BMS prevents reverse current flow during nighttime when panels aren’t generating power, protecting cells from damage. For marine use, it actively balances cells during charging to compensate for vibration-induced micro-shorts. The system also logs error codes for issues like excessive ripple current from inverters, helping technicians diagnose problems during maintenance. A three-tier protection system disconnects the load within 0.1 seconds if voltage exceeds 43.8V or drops below 24V, preventing catastrophic failures in saltwater environments.
What Are the Key Waterproofing Features of This Battery?
Rated IP67, the battery withstands immersion in 1m of water for 30 minutes. Its corrosion-resistant ABS casing and silicone-sealed terminals prevent saltwater damage, making it ideal for marine use. The design also resists dust ingress, ensuring reliability in solar farms or off-grid RV setups.
How Does the 10A Charger Optimize Recharge Times?
The 10A charger replenishes a 150Ah battery from 0% to 100% in 15 hours, 30% faster than standard 5A chargers. Its multi-stage charging (bulk, absorption, float) maximizes cell longevity. Compatibility with solar MPPT controllers allows hybrid charging, reducing grid dependency for RVs and marine systems.
| Charger Type | Charging Time (150Ah) | Cycle Life Impact |
|---|---|---|
| 5A Standard | 30 hours | 2,000 cycles |
| 10A Optimized | 15 hours | 3,500+ cycles |
“The KW 36V LiFePO4 battery sets a new benchmark for marine energy storage. Its IP67 rating and BMS-driven safety make it indispensable for saltwater environments where reliability is non-negotiable. The 10A charger’s adaptive algorithms also reduce stress on cells, extending cycle life beyond industry averages.” – Marine Energy Systems Specialist
FAQs
- Can This Battery Power a 1,500W Trolling Motor?
- Yes. A 36V 150Ah battery delivers 5.4kWh, running a 1,500W motor for 3.6 hours at full load. Actual runtime depends on speed settings and auxiliary loads.
- Is Solar Charging Possible Without an MPPT Controller?
- No. The BMS requires precise voltage regulation, which only MPPT or PWM controllers provide. Direct panel connections risk overvoltage damage.
- How Does Cold Weather Affect Performance?
- Capacity drops by 15–20% at -10°C but recovers fully above 0°C. The BMS includes low-temperature charging protection to prevent cell damage.