SMILE-B3 Single Phase AC Energy Storage System
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SMILE-B3 single phase AC coupled energy storage system with built-in 2.9kWh LFP battery, modular design, easy retrofit for existing solar systems.
$888.88 Original price was: $888.88.$666.66Current price is: $666.66.
Description
SMILE-B3 Single Phase AC Energy Storage System

The SMILE-B3 is an AC-coupled single-phase energy storage system specifically designed for easy retrofitting of existing solar installations. With its built-in 2.9kWh LFP battery and compatibility with all major PV inverter brands, this system is the perfect solution for homeowners who already have solar panels and want to add battery storage without replacing their current equipment. The modular design allows expansion up to 17.4kWh by adding additional battery modules, while 24/7 online monitoring keeps you informed about your energy usage and savings. Its compact form factor and straightforward AC connection make installation quick and hassle-free.
Product Specifications
| Item | Specification |
| Rated Output Power | 3kW |
| Coupling Type | AC |
| System Capacity Range | 2.9~17.4kWh (built-in 2.9kWh battery) |
| Battery Type | LFP (Lithium Iron Phosphate) |
| Battery Module | M4856-P |
| Battery Voltage | 51.2V |
| Expansion Method | 1~5 battery modules in parallel |
Key Features
- Modular design
- AC coupling – compatible with all solar inverters
- Built-in battery for easy installation
- Easy installation and maintenance
- 24/7 online monitoring
Reliable Energy Storage Solution
Our residential energy storage systems are engineered for safety, longevity, and performance. Every model uses premium LFP (Lithium Iron Phosphate) battery cells, which offer superior thermal stability, longer cycle life, and enhanced safety compared to other lithium-ion chemistries. With intelligent battery management systems and rigorous quality control, these systems deliver dependable backup power, maximize solar self-consumption, and help homeowners reduce electricity bills through time-of-use arbitrage and peak shaving.
Applications
- Residential solar energy storage and self-consumption optimization
- Whole-home backup power during grid outages
- Time-of-use electricity bill management
- Peak shaving and load shifting for demand charge reduction
- Off-grid and hybrid solar power systems
- Virtual Power Plant (VPP) participation where available
Additional information
| Rated Output Power | 3kW |
|---|---|
| Coupling Type | AC |
| System Capacity Range | 2.9~17.4kWh (built-in 2.9kWh battery) |
| Battery Type | LFP (Lithium Iron Phosphate) |
| Battery Module | M4856-P |
| Battery Voltage | 51.2V |
| Expansion Method | 1~5 battery modules in parallel |
描述
SMILE-B3 Single Phase AC Energy Storage System

The SMILE-B3 is an AC-coupled single-phase energy storage system specifically designed for easy retrofitting of existing solar installations. With its built-in 2.9kWh LFP battery and compatibility with all major PV inverter brands, this system is the perfect solution for homeowners who already have solar panels and want to add battery storage without replacing their current equipment. The modular design allows expansion up to 17.4kWh by adding additional battery modules, while 24/7 online monitoring keeps you informed about your energy usage and savings. Its compact form factor and straightforward AC connection make installation quick and hassle-free.
Product Specifications
| Item | Specification |
| Rated Output Power | 3kW |
| Coupling Type | AC |
| System Capacity Range | 2.9~17.4kWh (built-in 2.9kWh battery) |
| Battery Type | LFP (Lithium Iron Phosphate) |
| Battery Module | M4856-P |
| Battery Voltage | 51.2V |
| Expansion Method | 1~5 battery modules in parallel |
Key Features
- Modular design
- AC coupling – compatible with all solar inverters
- Built-in battery for easy installation
- Easy installation and maintenance
- 24/7 online monitoring
Reliable Energy Storage Solution
Our residential energy storage systems are engineered for safety, longevity, and performance. Every model uses premium LFP (Lithium Iron Phosphate) battery cells, which offer superior thermal stability, longer cycle life, and enhanced safety compared to other lithium-ion chemistries. With intelligent battery management systems and rigorous quality control, these systems deliver dependable backup power, maximize solar self-consumption, and help homeowners reduce electricity bills through time-of-use arbitrage and peak shaving.
Applications
- Residential solar energy storage and self-consumption optimization
- Whole-home backup power during grid outages
- Time-of-use electricity bill management
- Peak shaving and load shifting for demand charge reduction
- Off-grid and hybrid solar power systems
- Virtual Power Plant (VPP) participation where available

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