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English Español Deutsch Français Italiano Português Polski Nederlands čeština

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

Start Your Energy Storage Project with BST

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