15kWh AC-Coupled All-in-One Residential ESS
• 5.0kW AC Output Power
• 15.36kWh LiFePO₄ Battery
• Single-Phase & Three-Phase Compatible
• Expandable up to 30kW / 92kWh
• AC-Coupled Solar Retrofit
• 10ms Backup Switching
• Smart APP Monitoring
• 5.0kW AC Output Power
• 15.36kWh LiFePO₄ Battery
• Single-Phase & Three-Phase Compatible
• Expandable up to 30kW / 92kWh
• AC-Coupled Solar Retrofit
• 10ms Backup Switching
• Smart APP Monitoring
Designed for Existing Solar Systems & Reliable Home Backup
Add Battery Storage to Existing Solar Systems Without Replacing the Inverter
PBS-SG-AC is an all-in-one AC-coupled energy storage system designed to add battery storage to existing solar installations without replacing the current PV inverter. It enables greater solar self-consumption, reliable backup power, and increased energy independence. Featuring a 5kW inverter and a 15.36kWh LiFePO₄ battery, the system supports parallel expansion up to 30kW / 92kWh and can be configured for both single-phase and three-phase residential energy applications.
Designed for Existing Solar Systems & Reliable Home Backup
Add Battery Storage to Existing Solar Systems Without Replacing the Inverter
PBS-SG-AC is an all-in-one AC-coupled energy storage system designed to add battery storage to existing solar installations without replacing the current PV inverter. It enables greater solar self-consumption, reliable backup power, and increased energy independence. Featuring a 5kW inverter and a 15.36kWh LiFePO₄ battery, the system supports parallel expansion up to 30kW / 92kWh and can be configured for both single-phase and three-phase residential energy applications.
 |
AC-Coupled Solar Retrofit Add Battery Storage Without Replacing the Inverter |
| Single-Phase & Three-Phase Compatible Expand from a Single Unit to a Complete Three-Phase System |
 |
AC-Coupled Solar Retrofit
Add Battery Storage Without Replacing the Inverter
Single-Phase & Three-Phase Compatible
Expand from a Single Unit to a Complete Three-Phase System
Technical Specifications
| Model | PBS-SG-AC15/5 | |
| Grid (Input &Output) | Rated Output Power | 5000W |
| Rated Input/ Output Current | 22A | |
| Rated AC Voltage | 220/230Vac | |
| Rated Grid Frequency | 50/60Hz | |
| Input Voltage Range | 170–280Vac | |
| Conversion Time (bypass and inverter) | 10ms | |
| Max Grid Input Current | 40A(Bypass+Charging) | |
| Grid Connection Type | Single Phase | |
| Coupled Mode | AC Coupled | |
| Battery | Battery Type | LiFePO4 |
| Total Capacity | 15.36kWh(3 Modules) | |
| Module Rated Capacity | 5.12kWh | |
| Rated Voltage | 51.2Vdc | |
| Voltage Range | 43.2-57.6Vdc | |
| Designed Life | 10years | |
| Cycle Life | 6000times(80%DoD) | |
| Backup (Output) | Nominal Output Voltage | 230Vac |
| Nominal Output Frequency | 50/60Hz | |
| Max Continuous Output Current | 22A | |
| Rated Output Power | 5000W | |
| Max Output Protection Current | 32A | |
| Peak Power/Duration | 10000VA/5s | |
| Protection | Overload Protection | Yes |
| Output Short Circuit Protection | Yes | |
| AC Reverse Polarity Protection | Yes | |
| General Parameter | Appearance(W*H*D) | 663*160.4*203mm |
| Inverter Module(W*H*D) | 466.5*306*18.5mm | |
| Battery Module(W*H*D) | 586.5*386*133.5mm | |
| Weight | <230kg | |
| Charge Temperature Range | 0–50℃ | |
| Discharge Temperature Range | -10–50℃ | |
| Operation Altitude | ≤2000m | |
| Parallel Number | Up to 6 | |
| Install | Indoor/Outdoor | |
| Module Installation Method | Plug and Play | |
| Ingress Protection | IP54 | |
| Heat Dissipation | Fan Cooling | |
| Noise Emissions | <60 dB | |
| Certification | UN38.3,CE,IEC62109,EN50549,VDE4105 | |
| Model | PBS-SG-AC15/5 | |
| Grid (Input &Output) | Rated Output Power | 5000W |
| Rated Input/ Output Current | 22A | |
| Rated AC Voltage | 220/230Vac | |
| Rated Grid Frequency | 50/60Hz | |
| Input Voltage Range | 170–280Vac | |
| Conversion Time (bypass and inverter) | 10ms | |
| Max Grid Input Current | 40A(Bypass+Charging) | |
| Grid Connection Type | Single Phase | |
| Coupled Mode | AC Coupled | |
| Battery | Battery Type | LiFePO4 |
| Total Capacity | 15.36kWh(3 Modules) | |
| Module Rated Capacity | 5.12kWh | |
| Rated Voltage | 51.2Vdc | |
| Voltage Range | 43.2-57.6Vdc | |
| Designed Life | 10years | |
| Cycle Life | 6000times(80%DoD) | |
| Backup (Output) | Nominal Output Voltage | 230Vac |
| Nominal Output Frequency | 50/60Hz | |
| Max Continuous Output Current | 22A | |
| Rated Output Power | 5000W | |
| Max Output Protection Current | 32A | |
| Peak Power/Duration | 10000VA/5s | |
| Protection | Overload Protection | Yes |
| Output Short Circuit Protection | Yes | |
| AC Reverse Polarity Protection | Yes | |
| General Parameter | Appearance(W*H*D) | 663*160.4*203mm |
| Inverter Module(W*H*D) | 466.5*306*18.5mm | |
| Battery Module(W*H*D) | 586.5*386*133.5mm | |
| Weight | <230kg | |
| Charge Temperature Range | 0–50℃ | |
| Discharge Temperature Range | -10–50℃ | |
| Operation Altitude | ≤2000m | |
| Parallel Number | Up to 6 | |
| Install | Indoor/Outdoor | |
| Module Installation Method | Plug and Play | |
| Ingress Protection | IP54 | |
| Heat Dissipation | Fan Cooling | |
| Noise Emissions | <60 dB | |
| Certification | UN38.3,CE,IEC62109,EN50549,VDE4105 | |
Quality-Driven Manufacturing
Supported by advanced production facilities and internationally recognized management systems, BST ensures consistent quality, operational excellence, and reliable product performance.
ISO 9001 • ISO 14001 • ISO 45001 Certified
Manufacturing-Excellence-2.jpg
Manufacturing-Excellence-3.jpg
what-we-do--然后面上的字改白色.jpg
Manufacturing-Excellence
Manufacturing-Excellence-3.jpg
Manufacturing-Excellence-1.jpg
Manufacturing-Excellence-4.jpg
Manufacturing-Excellence
Manufacturing-Excellence-2.jpg
Manufacturing-Excellence-3.jpg
what-we-do--然后面上的字改白色.jpg
Manufacturing-Excellence
Manufacturing-Excellence-3.jpg
Manufacturing-Excellence-1.jpg
Manufacturing-Excellence-4.jpg
Manufacturing-Excellence
Start Your Energy Storage Project with BST
100% Confidential. Drop your contact info to get a quick quote and product datasheet for your project.
Copyright © 2026 BST POWER. All rights reserved.