Industrial Battery Energy Storage 261kWh E7-IC.261

The energy storage system is configured as 125kW/261kWh
and adopts a distributed integrated design scheme. It is used in a variety
of application scenarios such as emergency power supply, peak shaving and
valley filling.

Applicated Reference

Wind power Station

PV Power Station

Generator Factory

Island

Large-scale
Industrial User

Specifications – Liquid-Cooled 125 kW / 261 kWh

Item	Specification
DC Parameters
Battery Type	3.2 V / 314 Ah, LFP
Rated Capacity	261 kWh
Rated Voltage	DC 832 V
Voltage Range	DC 702 ~ 936 V
Charge/Discharge Rate	0.5C
Grid-Connected Output Parameters
Rated Output Power	125 kW
Overload Capability	1.1× continuous, 1.2× (1 min)
Rated AC Voltage	400 V (-15% ~ +15%)
Rated Output Current	180 A
Grid Connection	3P + N + PE
Rated Grid Frequency	50/60 Hz ± 2.5 Hz
Power Factor	0.99 (adjustable -1 ~ +1)
Off-Grid Output Parameters
Rated Output Power	125 kW
Rated AC Voltage	400 V (±3%)
Rated Frequency	50/60 Hz
Unbalanced Load Capability	100%
Basic Parameters
Dimensions (W × D × H)	1000 × 1350 × 2300 mm
Charge/Discharge Rate	≤ 0.5C
Weight	2.65 t
Protection Level	IP54
Anti-Corrosion Grade	C3 (optional C4 or C5)
Operating Temperature	-20 ~ 55 ℃ (optional ultra-low temperature version)
Humidity Range	0 ~ 95% (non-condensing)
Cooling Method	Liquid Cooling
Fire Suppression System	Aerosol
Maximum Operating Altitude	2000 m
Communication	RS485, Ethernet
System Efficiency	≥ 88%
Table 1–3 — Cell Parameters
Battery Cathode Material	LiFePO4
Cell Capacity	314 Ah
Rated Voltage	3.2 V
Operating Voltage Range	2.7 ~ 3.6 V
Operating Temperature (Charging)	0 ~ 55 ℃
Operating Temperature (Discharging)	-20 ~ 55 ℃
Table 1–4 — Battery Module Parameters
Cell Type	LFP
Charge Rate	≤ 0.5C
Discharge Rate	≤ 0.5C
Configuration	1P52S
Rated Capacity	314 Ah
Rated Energy	52.249 kWh
Rated Voltage	166.4 V
Operating Voltage Range	140.4 ~ 187.2 V
Max Operating Temperature Range	Charging: 0 ~ 55 ℃ / Discharging: -20 ~ 55 ℃
Optimal Working Temperature	Charging: 25 ℃ ±2 / Discharging: 25 ℃ ±2
Transportation & Storage Temperature	1 month: -20 ~ 45 ℃ / 6 months: -20 ~ 25 ℃
Insulation Resistance	≥ 500 MΩ @ 2500 VDC
Dielectric Strength Test	≤ 1 mA @ 4500 VDC, no spark/flashover
IP Protection Level	IP67
Ambient Relative Humidity	< 90% RH (non-condensing)
Cooling Method	Liquid Cooling
Weight	340 kg
Dimensions (W × D × H)	790 × 1145 × 245 mm

Energy Storage Subsystems & Specifications

This document presents technical specifications of the energy storage system, including PCS, BMS, EMS, Thermal, Fire Protection, and Safety guidelines.

Power Conversion System (PCS)

The PCS adopts a modular converter design with total power of 125 kW. It supports automatic operation and full charge/discharge control of the battery system.

PCS Parameters

Item	Specification
AC access mode	3P4W
Rated power	125 kW
Rated grid-connected voltage	400 V (-15% ~ +15%)
Rated output current	180 A
Rated grid frequency	50/60 Hz ± 2.5 Hz
Power factor	0.99 (adjustable -1 ~ +1)
DC voltage range	600 – 1000 V
Maximum efficiency	99%
Enclosure protection class	IP20
Cooling mode	Forced air cooling (smart fan speed control)
Communication interface	RS485, Ethernet
Working environment temperature	-30 ℃ ~ +60 ℃
Maximum working altitude	3000 m (derating > 2000 m)
Relative humidity	RH ≤ 95% (non-condensing)

Battery Management System (BMS)

The BMS uses a two-level architecture (module + cluster) and three-level software protection. It ensures safe, stable operation and complete monitoring of the battery system.

Energy Management System (EMS)

The EMS collects status/data from all devices, handles charge/discharge requests, and generates control strategies for coordinated system operation.

Thermal Management System

Liquid cooling ensures effective temperature control of the battery cells, extending system life and safety.

Liquid-cooled Unit Parameters

Item	Specification
Refrigerating capacity	~ 5 kW
Heating capacity	~ 2.5 kW
Working temperature	-30 ℃ ~ +55 ℃
Power supply	220 VAC ± 10%
Refrigerant	R410A / R134a
Electrical protection class	IP55
Installation method	Horizontal installation
Communication mode	RS485

Fire Fighting System

The cabinet includes aerosol-based extinguishers, fire partitions, and alarms for enhanced safety.

Fire Protection Parameters

Item	Specification
Working temperature	-30 ℃ ~ +70 ℃
Fire detection mode	Hot start / Composite detector
Fire extinguishing mode	Full-automatic
Extinguishing agent	Aerosol (Potassium nitrate, Strontium nitrate 50%–58%)
Discharge time	≤ 14 s

Safety Precautions

Operation only by trained, qualified personnel.
Disconnect high-voltage switch during installation.
Check all materials before installation; do not use damaged parts.
Use insulated gloves and insulated tools.
Never touch both positive and negative terminals simultaneously.
Non-professionals must not disassemble modules or touch PCBs.
No modifications without manufacturer’s approval.

Safe Use Guide

Ensure a safe operating environment for the battery system.
Do not exceed rated power; keep away from fire, heat, and water.
If leakage or odor is detected, stop using immediately and notify staff.
Perform full charge/discharge every 6 months at 0.5C and record results.
After long-term storage, perform safety checks before re-use.

Statement of Responsibility

This specification is for reference only. Final system parameters are subject to the signed technical agreement. Updates to this document may occur without prior notice.

Key Features

High Level of Safety

Safe LFP cells with high thermal and chemical stability.
Protection class IP54 suitable for outdoor installation.
Anti-corrosion class C4 ensuring long-term reliability of up to 20 years.
Precaution-based fire protection design with independent fire-fighting systems.

Durability

All-in-one high-efficiency liquid cooling system for optimal thermal management.
Internal container temperature difference maintained below 5 °C.

High Degree of Integration

Modular 1500 V system architecture for flexible configuration.
Electrical system isolated from the battery compartment for easier maintenance and enhanced safety.
Highly integrated modular design reducing land use by up to 35%.
Prefabricated cabins significantly reducing installation costs and commissioning time.

Worldwide shipping

We ship our equipment worldwide.
Contact us and we will solve any issue concerning logistics.