Sungrow PowerKeeper 50kWh Secondary Storage Extension

Sungrow PowerKeeper ST050CF 50kWh Secondary Storage Extension

This pre-configured bundle combines the key Sungrow components required for a 50kWh commercial and industrial (C&I) storage system, including PowerKeeper battery modules and a system extension accessory kit required for the standard setup. Additional items may be required depending on the final project design.

PowerKeeper is suitable for a wide range of sites, from small commercial buildings to large industrial facilities, while enabling precise capacity matching and reduced upfront investment.

What’s included

This pre-configured bundle includes:

• 4 x Sungrow PowerKeeper Battery Modules(reference: SG-STC12.5-Powerkeeper)
• 1 x Sungrow PowerKeeper Secondary Accessory Kit(reference: SG-PK-BMS-S)

For full technical specifications, datasheets, dimensions, compatibility details, and installation requirements, please refer to the individual product pages for each component included in this bundle.

Note that this system can be expanded with additional components purchased separately or configured through one of our other pre-configured bundle options.

Technical Information Summary

Sungrow PowerKeeper ST050CF Storage System

• Capacity: 49.9 kWh (12.48 kWh × 4 modules)
• Voltage Range: 129.6–175.2 V (per battery 32.4–43.8 V)  
• Battery chemistry: LFP / LiFePO₄
• Charge / discharge rate: 0.5P
• Approx. battery charge / discharge power: 25.0 kW for the 50 kWh configuration
• Protection rating: IP66
• Dimensions (W x H x D): 800 x 1567 x 405 mm