2.8kWh Plug-and-Play AC-Coupled Balcony Battery Storage System
· 2.0kW AC Output Power:Robust balcony solar system delivery to reduce home electricity bills
· 2.8kWh LiFePO₄ Battery:Premium Lithium Iron Phosphate cells with over 6,000+ deep cycles
· Expandable up to 16.8kWh:Scalable modular design allowing easy capacity expansion to meet growing home backup power demands
· Plug & Play Installation: User-friendly balcony solar battery setup ready in under 5 minutes
· Dynamic Tariff Ready:Smart energy management that syncs with dynamic pricing to maximize ROI
· Smart APP Monitoring: Real-time wireless app connectivity to track solar generation and SOC
· 2.0kW AC Output Power:Robust balcony solar system delivery to reduce home electricity bills
· 2.8kWh LiFePO₄ Battery:Premium Lithium Iron Phosphate cells with over 6,000+ deep cycles
· Expandable up to 16.8kWh:Scalable modular design allowing easy capacity expansion to meet growing home backup power demands
· Plug & Play Installation: User-friendly balcony solar battery setup ready in under 5 minutes
· Dynamic Tariff Ready:Smart energy management that syncs with dynamic pricing to maximize ROI
· Smart APP Monitoring: Real-time wireless app connectivity to track solar generation and SOC
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Designed for Solar Retrofit & Energy Independence
Designed to help homeowners store more solar energy, reduce reliance on the grid, and build a smarter, more efficient home energy system.
PT-SG-AC is an intelligent AC-coupled energy storage system designed for European homes and balcony solar applications. With plug-and-play installation, modular battery expansion, AI-powered energy management, and broad inverter compatibility, it helps homeowners maximize solar self-consumption, lower electricity costs, and gain greater energy independence.Whether upgrading an existing PV system or adding storage to a balcony solar installation, PT-SG-AC provides a simple, flexible, and future-ready solution.
Designed for Solar Retrofit & Energy Independence
Designed to help homeowners store more solar energy, reduce reliance on the grid, and build a smarter, more efficient home energy system.
PT-SG-AC is an intelligent AC-coupled energy storage system designed for European homes and balcony solar applications. With plug-and-play installation, modular battery expansion, AI-powered energy management, and broad inverter compatibility, it helps homeowners maximize solar self-consumption, lower electricity costs, and gain greater energy independence.Whether upgrading an existing PV system or adding storage to a balcony solar installation, PT-SG-AC provides a simple, flexible, and future-ready solution.
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Plug-and-Play Installation Quick and easy installation with minimal wiring, reducing installation time and labor costs. |
| Flexible Battery Expansion Expand storage capacity up to 16.8kWh to support increasing household energy consumption. |
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Dynamic Tariff & AI Optimization Optimize charging and discharging based on electricity prices, solar generation, and household energy usage. |
| Smart Home Energy Ecosystem Integrate smart meters, heat pumps, EV chargers, smart plugs, and other devices through one intelligent energy management platform. |
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Plug-and-Play Installation Quick and easy installation with minimal wiring, reducing installation time and labor costs. |
| Flexible Battery Expansion Expand storage capacity up to 16.8kWh to support increasing household energy consumption. |
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Dynamic Tariff & AI Optimization Optimize charging and discharging based on electricity prices, solar generation, and household energy usage. |
| Smart Home Energy Ecosystem Integrate smart meters, heat pumps, EV chargers, smart plugs, and other devices through one intelligent energy management platform. |
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Technical Specifications
| Specification Type | PT-SG-AC 2.8/2.0 |
| Battery Parameter(Host) | |
| Rated Voltage | 38.4V(12s) |
| Battery Energy | 2.8kWh |
| Life Cycle | >6000(80%DOD) |
| Battery Type | LiFePO4 |
| Max. Charge/Discharge Current | 72A |
| AC:Grid Input/Output | |
| Rated Input/Output Power | 2000W |
| Grid Connection | L/N/PE(single phase) |
| Rated Grid Voltage | 230V |
| Rated Grid Frequency | 50Hz/60Hz |
| Rated Grid Input/Output Current | 8.7A |
| Power Factor | >0.99(default) |
| THDi | <3% |
| AC Output(Off Grid) | |
| Rated Off-grid Output Power | 2000VA |
| Max.Output Power | 4000VA |
| Rated Output Current | 8.7A |
| Rated Output Voltage | 230V |
| Rated Output Frequency | 50Hz |
| Transfer Time | <10ms |
| General Parameter | |
| Dimension(W*D*H) | 500*324*228mm |
| Weight | ~29kg |
| Max.Efficiency | ≥93% |
| Protection Level | Class I |
| OverVoltage Withstand Level | DC Ⅱ/AC Ⅲ |
| Temperature Range | -20℃~55℃ |
| Relative Humidity | 10%~95%(No condensation) |
| Ingress Protection | IP65 |
| Cooling Method | Natural Cooling |
| Maximum Altitude | ≤2000m |
| Display&Communication | LED Screen,Wifi,RS485 |
| Design Life | 15 Year |
| Certification | CE,UN38.3 |
| Extended Battery Unit(Stack) | |
| Adaptive Energy Storage unit | BST-E2.8ST |
| Battery Energy | 2.8kWh |
| Dimension(W*D*H) | 500*324*157mm |
| Weight | ~23kg |
| Battery Stack Quantity | 5PCS (max) |
| Total Capacity Of the Product | 2.8~16.8kWh |
| Specification Type | PT-SG-AC 2.8/2.0 |
| Battery Parameter(Host) | |
| Rated Voltage | 38.4V(12s) |
| Battery Energy | 2.8kWh |
| Life Cycle | >6000(80%DOD) |
| Battery Type | LiFePO4 |
| Max. Charge/Discharge Current | 72A |
| AC:Grid Input/Output | |
| Rated Input/Output Power | 2000W |
| Grid Connection | L/N/PE(single phase) |
| Rated Grid Voltage | 230V |
| Rated Grid Frequency | 50Hz/60Hz |
| Rated Grid Input/Output Current | 8.7A |
| Power Factor | >0.99(default) |
| THDi | <3% |
| AC Output(Off Grid) | |
| Rated Off-grid Output Power | 2000VA |
| Max.Output Power | 4000VA |
| Rated Output Current | 8.7A |
| Rated Output Voltage | 230V |
| Rated Output Frequency | 50Hz |
| Transfer Time | <10ms |
| General Parameter | |
| Dimension(W*D*H) | 500*324*228mm |
| Weight | ~29kg |
| Max.Efficiency | ≥93% |
| Protection Level | Class I |
| OverVoltage Withstand Level | DC Ⅱ/AC Ⅲ |
| Temperature Range | -20℃~55℃ |
| Relative Humidity | 10%~95%(No condensation) |
| Ingress Protection | IP65 |
| Cooling Method | Natural Cooling |
| Maximum Altitude | ≤2000m |
| Display&Communication | LED Screen,Wifi,RS485 |
| Design Life | 15 Year |
| Certification | CE,UN38.3 |
| Extended Battery Unit(Stack) | |
| Adaptive Energy Storage unit | BST-E2.8ST |
| Battery Energy | 2.8kWh |
| Dimension(W*D*H) | 500*324*157mm |
| Weight | ~23kg |
| Battery Stack Quantity | 5PCS (max) |
| Total Capacity Of the Product | 2.8~16.8kWh |
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
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