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GSL Energy Solar Battery Backup for Home | Scalable Home Battery Storage up to 157kWh
The GSL-B51-205 is a high-performance solar battery backup for home, designed to provide reliable and scalable energy storage for residential and small commercial applications.
With 10.49kWh per unit and support for up to 15 units in parallel, it can expand into a powerful home battery storage system of up to 157kWh.
Whether used as a battery backup for home during outages or as part of a solar energy system, it ensures stable power supply, intelligent energy management, and long-term reliability.
Reliable Solar Battery Backup for Home Energy Security
As energy costs rise and grid reliability becomes uncertain, a dependable house battery backup system is essential.
The GSL-B51-205 provides a stable and efficient solar battery backup, ensuring uninterrupted power supply for homes and small businesses. It stores excess solar energy and delivers it when needed—during nighttime or grid outages.
Product Specifications
Find the energy storage system product you need.
| Item | Details |
|---|---|
| Model | GSL-B51-205 |
| Battery Chemistry | LiFePO4 |
| Nominal Voltage | 51.2V |
| Operating Voltage | 46-56V |
| Capacity | 205Ah |
| Energy | 10.49kWh |
| Usable Energy | 9.44kWh |
| Recommended Charge/Discharge Continuous Current | 100A |
| Max. Charge/Discharge Continuous Current | 150A |
| Recommended Depth of Discharge | 80% |
| Cycle Life | ≥6500 (25±2℃, 0.5C/0.5C, 80% EOL) |
| Scalability | Max.16pcs in parallel (157.35kWh) |
| Dimension (W/H/D) | 450640235mm |
| Weight Approximate | 89.5kg |
| IP Rating | IP50 |
| Working Temperature | Charge: 0℃~55℃; Discharge: -20℃~55℃ |
| Storage Temperature | 0℃~35℃ |
| Humidity | 5%~95% |
| Altitude | ≤2000m |
| Installation | Floor standing, Rack-mounted, Stackable, Wall-mounted |
| Communication Port | WIFI, CAN, RS485, Display screen |
| LED Indicator | 4LED (SOC:25%~100%); 2LED (working, alarming, protecting) |
| Warranty Period | 5 years |
| Certification | CE-EMC, MSDS, UN38.3 |
WHY CHOOSE GSL?
Scalable Home Battery Storage up to 157kWh
As the leading vertically integrated manufacturer of lithium iron phosphate battery systems, GSL ENERGY has provided various battery solutions for nearly all kinds of ESS applications. Thanks to our self-developed core technology in cells/BMS/system design, GSL ENERGY has delivered more than 138+ countries serving 100,000+ users.
Advanced Safety for Home Solar Battery
The system is built with multiple safety protections for residential use, including LiFePO4 chemistry for high thermal stability, an integrated fire protection design, and an intelligent BMS with multi-layer safety control. This ensures stable and secure daily operation.
Smart Monitoring & Plug-and-Play Operation
The battery supports real-time monitoring through a touchscreen display, WiFi connectivity, and CAN/RS485 communication. In multi-unit setups, all batteries automatically synchronize SOC and capacity data for consistent system visibility. The plug-and-play design with automatic parallel connection (up to 15 units) eliminates DIP switch configuration and simplifies installation.
Flexible Installation & Global Adaptability
Designed for different residential environments, the system supports wall-mounted, floor-standing, rack-mounted, and stackable installation options. It operates reliably under a wide temperature range from -20°C to 55°C (discharge) and 0°C to 55°C (charge), making it suitable for global deployment scenarios.
Why Choose GSL ENERGY for Home Battery Storage?
- 15+ Years Manufacturing Expertise:Strong R&D and production capability focused on advanced energy storage systems.
- Global Project Experience:Successfully deployed projects across the USA, Southeast Asia, Africa, and other international markets.
- Certified Quality Standards:Products comply with CE, UN38.3, MSDS and other international safety certifications.
- Flexible OEM / ODM / OBM Services:Full customization support for different market and branding requirements.
- Trusted Global Partnership:Widely recognized by installers, EPC contractors, and distributors worldwide for reliability and performance.
FAQ – Home Battery Storage & Solar Backup
Email: sales@gsl-energy.com
Tel: +86 755 84515360
Address: A602, Tianan Cyber Park, Huangge North Road, Longgang District, Shenzhen, China0086 13923720280