KF Solar 15kWh / 20kWh / 25kWh Stackable LiFePO4 Home Energy Storage System
Product Overview
The KF Solar Stackable Home Energy Storage System is a high-performance lithium iron phosphate (LiFePO4) battery solution designed for residential and light commercial energy storage applications. Featuring a modular stackable design, this system provides flexible capacity expansion from 15kWh to 30kWh, ensuring reliable backup power and efficient solar energy utilization.
Built with advanced battery management technology and high-quality LiFePO4 cells, the system delivers outstanding safety, long cycle life, and stable performance for both off-grid and hybrid solar installations.
Key Features
- High-Safety LiFePO4 Battery Technology
- Modular Stackable Design for Easy Capacity Expansion
- Compatible with Hybrid and Off-Grid Solar Systems
- Long Service Life with Over 6,500 Charge Cycles
- Intelligent Battery Management System (BMS)
- RS485 and RS232 Communication Interfaces
- Compact Floor-Standing Design
- High Energy Density and Stable Performance
- Easy Installation and Maintenance
- Suitable for Residential and Commercial Energy Storage
Technical Specifications
| Item | Specification |
|---|---|
| Battery Type | LiFePO4 (Lithium Iron Phosphate) |
| System Voltage | 51.2V |
| Capacity Options | 15kWh / 20kWh / 25kWh / 30kWh |
| Output Power Range | 20–30kW |
| Grid Connection | Hybrid Grid / Off-Grid |
| System Type | Stackable All-in-One |
| Protection Class | IP21 |
| Communication Port | RS485, RS232 |
| Communication Method | RS485 |
| Frequency Range | 50Hz / 60Hz |
| Host Output Capacity | 5500W |
| Solar Panel Input Power | 5000W |
| Output Frequency | 220V |
| Battery Capacity | Customizable |
| Dimensions (L×W×H) | 580 × 500 × 805 mm |
| Weight | 324 kg |
| Place of Origin | Guangdong, China |
Applications
- Residential Solar Energy Storage
- Home Backup Power Systems
- Off-Grid Solar Installations
- Hybrid Solar Power Systems
- Emergency Power Supply
- Energy Cost Reduction and Peak Shaving
- Small Commercial Energy Storage Projects
Advantages
Flexible Expansion
The modular stackable architecture allows users to expand energy storage capacity according to their power requirements.
Enhanced Safety
LiFePO4 chemistry provides superior thermal stability, excellent safety performance, and longer service life compared to traditional lithium batteries.
Intelligent Energy Management
Integrated BMS continuously monitors battery status, ensuring optimal charging, discharging, and system protection.
Reliable Backup Power
Provides stable and uninterrupted power supply during grid outages, ensuring continuous operation of household appliances and critical loads.
Package Includes
- Stackable LiFePO4 Battery Modules
- Integrated Battery Management System (BMS)
- Communication Cables
- Installation Accessories
- User Manual





