Standing Lithium Iron Battery 51.2V 200Ah ECO Series

ONESUN Standing Lithium Iron Battery 51.2V 200Ah ECO Series: Intelligent, Safe, and Scalable Energy Storage for Modern Demands

 

As the global energy landscape shifts toward renewables, the need for reliable, high-performance energy storage has never been more critical. At ONESUN, we understand that businesses and households require more than just a battery – they need a future-proof energy partner. That's why we are proud to introduce the ONESUN Standing Lithium Iron Battery 51.2V 200Ah ECO Series (ECO S Series), a low-voltage, vertically designed battery pack that redefines safety, scalability, and efficiency.

 

 

Engineered for Power and Longevity

The ECO S Series is built around high-performance LiFePO₄ cells and an integrated smart Battery Management System (BMS). With a nominal voltage of 51.2V and a substantial 200Ah capacity, this unit delivers 10.24kWh of usable energy in a compact, floor-standing vertical enclosure. The vertical design not only saves valuable floor space but also enhances natural heat dissipation, contributing to a longer cycle life.

 

One of the standout technical achievements of the ECO S Series is its 1C continuous charge and discharge capability in specific application scenarios. Unlike many conventional batteries that limit continuous current to 0.5C, our solution allows you to fully charge or discharge the 200Ah battery in just one hour. This high-power throughput is ideal for backup systems, peak shaving, and high-demand periods in retail stores, hospitals, or small-to-medium industrial facilities.

 

⚡ ONESUN ENERGY

ECO SERIES · GREEN POWER Standing Lithium Iron Battery  51.2V 200Ah ECO series

📦 Model: S-51.2V200Ah🔋 LiFePO4 Technology🌿 10.24 kWh Capacity♻️ 3000+ Cycles @80% SOH

 

Parameter	Specification (ECO Series – 200Ah)
Cell Type	Lithium Iron Phosphate (LiFePO₄) – Prismatic cell
Model / Series	S-51.2V200Ah / Standing ECO Series
Rated Capacity	200 Ah
Energy (Nominal)	10.24 kWh
Nominal Voltage	51.2 V
End-of-charge Voltage (Cut-off)	58.0 V
End-of-discharge Voltage (Cut-off)	42.0 V
Rated Charge Current	100 A (0.5C standard)
Max. Continuous Discharge Current	100 A
Max. Instantaneous Discharge Current	200 A (≤ 3s)
Overcurrent Protection Threshold	120 A (automatic recovery)
Ingress Protection (IP Rating)	IP54 (dust & splash resistant)
Warranty	3 years (standard)
Balancing Technology	Active & Passive balancing (intelligent BMS)
Cycle Life	≥ 3000 cycles @ SOH ≥80% , 0.5C, 25°C
SOC Estimation	Yes (high precision algorithm)
Intelligent Balance	Yes (active equalization improves consistency)
Parallel Connection	Yes (supports multiple units in parallel, max 16 units recommended)
Sleep & Wake-up Mode	Yes (auto sleep / remote / manual wake-up)
Protection Functions	Over-charge, Over-discharge, Over-current, Short-circuit, Over-voltage, Under-voltage, Over-high/low temperature protection
Communication Interface	RS485 / CAN / Bluetooth (BT optional)
Communication Protocol	Compatible with 12 popular inverter brands (Victron, Growatt, DEYE, Luxpower, GoodWe, SMA, Sofar, etc.)
Operating Temperature	Charging: 0°C ~ 55°C Discharging: -20°C ~ 55°C
Storage Temperature	-30°C ~ 60°C
Storage Humidity	≤90% RH (non-condensing)
Standard Environmental Condition	Temperature: 25°C ± 2°C ; Humidity: 45% ~ 75% RH ; Atmospheric Pressure: 86KPA ~ 106KPA
Dimensions (W × D × H)	420 mm × 260 mm × 775 mm (floor standing type)
Net Weight	Approx. 115 kg
Certifications & Compliance	CE: IEC 61000-6-3:2021; IEC 61000-6-1:2019; IEC 61000-3-2:2009+A1:2021; EN61000-3-3:2013+A2:2021+AC:2022 UN38.3, MSDS (Transportation safety)
BMS Features	Over-temperature protection, cell balancing, real-time monitoring, short-circuit protection, intelligent current limiting
Recommended Application	Solar storage, residential ESS, UPS backup, telecom towers, off-grid systems

 

✅ Specifications based on ONESUN official datasheet (S-51.2V200Ah ECO series) · Subject to technical improvements.
🔋 Active & passive balancing, intelligent BMS with RS485/CAN for seamless integration.
🌱 Green energy solution – designed for durability, safety and high performance.

 

 

Dual Balancing Technology: Active + Passive

Battery degradation often starts with cell imbalance. To combat this, ONESUN engineers implemented dual balancing technology – a synergistic combination of active and passive balancing. The passive balancing gently equalizes cell voltages during the topping charge phase, while the active balancing redistributes energy from higher-voltage cells to lower-voltage cells in real time. This dual approach minimizes long-term capacity drift, reduces internal stress, and significantly delays battery aging. The result is exceptional capacity retention and stable performance over thousands of cycles, lowering total cost of ownership.

 

Triple-Layer Safety Armor

 

Safety is non-negotiable. The ECO S Series features our proprietary Triple-Layer Safety Armor, a three-level adjustable protection mechanism: Warning, Protection, and Deep Protection. Each level monitors voltage, current, and temperature with precise thresholds. When minor anomalies occur (Warning), the system logs alerts. If limits are breached (Protection), the BMS safely disconnects. In extreme conditions (Deep Protection), the battery enters a fail-safe state, preventing thermal runaway. This layered architecture gives installers and end-users complete peace of mind.

 

Wide Compatibility & Seamless Scalability

 

Compatibility headaches are a thing of the past. The ECO S Series works with most single-phase inverters on the market, making it a drop-in solution for new installations or retrofits. Whether you are upgrading an existing solar system or designing a new off-grid setup, integration is straightforward.

 

Moreover, the strong scalability of the ECO S Series allows parallel connection of multiple units. Starting with a single 10.24kWh battery, you can easily expand to 20.48kWh, 30.72kWh, or higher as your energy needs grow. This modular approach makes it perfect for households expanding their EV charging, schools adding solar capacity, or small commercial businesses scaling operations.

 

Ideal Applications

The ONESUN Standing Lithium Iron Battery 51.2V 200Ah ECO Series is versatile enough for:

Homes: Store solar energy for night use or emergency backup.

Schools & Hospitals: Ensure uninterrupted power for critical equipment.

Retail stores: Reduce demand charges and protect POS systems.

Small-to-medium commercial & industrial businesses: Optimize energy costs and improve grid independence.

 

 

The ONESUN ECO S Series is not just another lithium battery – it is a carefully engineered system that balances power, safety, and adaptability. With 1C continuous throughput, dual balancing technology, triple-layer safety, and easy parallel expansion, it delivers reliable energy storage today while preparing you for tomorrow's demands. Choose ONESUN and experience the future of standing lithium iron phosphate batteries.

 

 

Learn more about the ECO S Series – where intelligent design meets industrial-grade resilience.

 

 

Article Source: Lithium battery manufacturer - ONESUN China

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