Key Features

Benefits

• Suitable for outdoor or dusty/wet environments due to IP66 protection
• Can be deployed in floor-standing installations
• Modular format supports stacked system build-outs
• Higher energy density may reduce site footprint compared with larger-footprint systems

Technical Summary

Sigenergy SigenStack Base 4S-0.5C battery controller/base for C&I energy storage. Compatible with Sigen C&I Hybrid Inverter Series. Operating voltage range 550-1100 V, max output/input current 180 A, nominal battery charge/discharge current 157 A, CAN communication. IP66 enclosure, smart air cooling, floor-standing installation. System configuration range 4-21 pcs, max system energy capacity 253 kWh, max operating altitude 4,000 m with derating at 2,000 m. Operating temperature range -20 to 55 °C and relative humidity 0% to 100%.

Installation Notes

Floor-standing installation method. Base dimensions: 770 x 195 x 363 mm. For systems with 19 battery modules or fewer, or in PV + ESS (DC coupling) projects, the battery controller should use the BST model.

Efficiency

Nominal charge/discharge rate is 0.5C, with maximum charge/discharge rate of 1C. The module uses LiFePO4 battery chemistry and is stated with higher energy density.