EASUN POWER 15kWh 51.2V 300Ah LiFePO4 Solar Home Storage Backup Battery RS485 BMS
- Character: The 51.2V 100AH /200AH LFP Battery is compact, well-designed, LCD, and cable/accessories ready for installation. ≥6000 cycles deep cycle, designed for up to 10-year life.
- Intelligent BMS: Battery Management System can manage and monitor cells information including voltage, current and temperature, protects it from overcharge, deep discharge, overloading, overheating and short circuit, help to extend lifetime.
- Flexible: Modular design, easy to expand, max 15 units in parallel, suitable to residential and commercial applications and other energy storage system for increasing the self-consumption ratio.
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Compatible: CAN/RS485 Communication Protocol Lithium Ion Battery can be compatible with most inverters in the market.
- Secure Checkout – PCI-DSS compliant
- Fast Delivery – Ships in 2 workdays from UK
- 2-Year Limited Service – easy claims & lifetime tech support
- 30-Day Return Policy – hassle-free process
Download the full user manual & installation guide:
With This Battery You Can Power Up…
⛵ Marine & 5th Wheel
Upgrade your home energy storage with 15kWh capacity, support up to 16 batteries in parallel — ideal for household backup.
🚐 RV & Cabins
Reliable off-grid power for RVs, tiny houses, and remote cabins. Keep your essential appliances running smoothly anywhere.
⛵ Marine & 5th Wheel
Safe, long-lasting LiFePO4 power for marine applications and fifth-wheel trailers, ensuring stable energy on the move.
Flexible & Scalable
Wall-mounted & modular design saves space and supports parallel expansion
Wide compatibility with off-grid and hybrid solar systems
Perfect for residential backup, small commercial setups, telecom, and off-grid cabins
Silent, maintenance-free operation — ideal for indoor installation
Safe Reliable
Utilizes LiFePO4 chemistry, known for its superior thermal and chemical stability
Built with A+ grade cells, 6000+ cycles @ 80% DOD，offering low risk of overheating or fire
Features multiple protection mechanisms: over-voltage, over-current, short circuit, temperature, and more
Smart Management System
Equipped with advanced BMS (Battery Management System)
Real-time monitoring of voltage, current, temperature, and state of charge
Supports RS485/RS232/CAN communication, seamlessly integrates with major inverter brands
Automatically balances cells to maximize battery lifespan and efficiency
📊 Specification
Frequently asked questions
Still looking for an answer?
1.What is the safe charge and discharge voltage range?
Nominal voltage is 51.2 V, made from 16 cells (3.2 V nominal each).
Full charge (max) is 58.4 V → ~3.65 V per cell.
Discharge cutoff (min) is 40 V → ~2.5 V per cell
2.What are the standard and maximum currents?
Standard charge/discharge: 50 A (≈ 0.25 C).
Max continuous charge/discharge: 100 A (≈ 0.5 C), only at temperatures ≥ 10 °C(51.2V-300Ah is 200A)
BMS will shut off charging/discharging beyond the limits.
3.Can I fast-charge this battery?
Fast charging within the design specs (up to 0.5 C) is acceptable. Going above can stress the battery, reduce cycle life, or trigger BMS protection
4.Are there any hidden costs?
No, there are no hidden costs. All charges, including taxes and shipping (if applicable), are clearly displayed at checkout. We value transparency and aim to provide a hassle-free shopping experience.
5. What is the expected lifespan of this battery?
Our chargers are compatible with all Qi-enabled devices, including a wide range of smartphones and accessories. We recommend checking your device’s specifications to ensure wireless charging support.
6. How do I monitor SOC and cell balance?
BMS performs passive balancing automatically when a cell hits ~3.40 V.
SOC LED indicators show ranges: 0–25%, 25–50%, 50–75%, ≥ 75%.
LCD shows voltage, current, temperature, and balance status.
7. Can I wire multiple batteries for higher voltage or capacity?
Series wiring is not recommended unless done by the manufacturer.
To expand capacity or voltage, it’s safer to use fully compatible modules managed by same-series BMS (max 16 units parallel).
Improper series/parallel wiring may cause imbalance, risk, or invalidated warranty .
8. Can I use a lead‑acid charger to recharge?
No. Lead‑acid chargers operate at lower voltages (≈ 2.3–2.45 V per cell), which results in undercharging and no proper balance—this shortens life and affects capacity. Use a charger designed for LiFePO₄ chemistry (≈ 3.6–3.65 V per cell)
9. Is this battery safe? What about fire risk?
LiFePO₄ chemistry offers higher thermal and chemical stability versus other lithium-ion types.
It’s significantly more resistant to thermal runaway; cell thermal runaway occurs at around 220–240 °C, much higher than NMC‐type cells (~160–230 °C)
Still, avoid physical damage, overcharging, and exposure to extreme temperatures.
Don’t leave it charging unattended, and use only manufacturer-approved chargers and equipment.
Pro Tip: To maximize battery life:
Keep discharge depth ≤ 80% (avoid full cycles regularly).
Operate and store at moderate temperatures (~25 °C ideal).
Avoid charging below freezing, and don’t overcharge beyond cutoff voltages.
