Battery String
Battery String
Battery String

Battery String-S207

Energy Storage Unit

Battery String-S207 is a highly stable and reliable energy storage system, developed by Cubenergy and has already been certified under IEC62619. This product consists of 20 pieces of standard battery packs (P10) and a high-voltage unit. The maximum capacity of the entire battery string is 207kWh. The SMU in the high-voltage unit enables the effective management of the entire battery cluster. This product is ideal for MWh-scale energy storage power plants, photovoltaics consumption, and large C&I peak-shaving and valley-filling applications, etc.


  • Modular design, easy integration, and simple operation & maintenance;
  • AC/DC busbar connection to PCS;
  • Optimized internal airflow design and exhaust fans for stable environment control;
  • Long-time efficiency and reliable operation;
  • Human-machine interface (HMI);
  • Complete fault alarm mechanism and troubleshooting function;
  • Integrated battery management system (BMS);
  • Flexible system capacity and performance customization;

Download details

Item Data
Battery String-S207 RACK Battery cell capacity 90Ah
Rated cell voltage 3.2V
Rack nominal capacity 207KWh
Rated rack voltage 768V
String measuring voltage range 100~1,000 V
S207-High Voltage Unit Circuit breaker 160A~250A
Hall sensor 300A
Leakage current sensor 50mA
Fuse 250A
BESS Controller Power AC Voltage & Frequency; AC220V,50/60Hz.
Grid control application Time shifting, peak shaving, renewable moving average
Off-grid control application Backup power, PV/DG/EV/ESS integrated micro-grid control
Battery management system DC busbar incoming control
Dimensions (W*D*H ) 1,650*600*2,200mm
Weight 2,000kg
String cycle life ≥5,000 cycles@0.5C, 25℃
Communication Ethernet,CAN,RS485
Certifications UL 1973, IEC 62619, UN38.3, CE

The safety of our system is ensured by

Battery String

High-performance lithium-ion battery technology with the lifespan up to 4500 cycles at 1C.

Battery String

Sourcing from globally leading battery manufacturers.

Battery String

IEC and TUV safety testing and evaluation of products.

Battery String

The BMU collects all battery data (DC Voltage and Current, etc.) of the entire rack, preventing overcharging and over-discharging.