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Custom 51.2V 400Ah 20kWh IP65 LiFePO4 Home Battery with Wheels | OEM & ODM Energy Storage Manufacturer
20.48kWh IP65 Floor-Standing LiFePO4 Battery
A movable, high-capacity, and customizable solar battery solution for home energy storage distributors, installers, and private-label brands.
Movable Floor-Standing Design
Integrated heavy-duty caster wheels make the 192kg battery easier to move and position during delivery, installation,n and maintenance. Adjustable support feet help stabilize the cabinet after installation.
20.48kWh High-Capacity Storage
The 51.2V 400Ah LiFePO4 battery provides 20.48kWh of nominal capacity and approximately 19.456kWh of usable energy at ≥95% depth of discharge.
10kW Maximum Power Output
Maximum charging and discharging currents of 200A support up to 10kW of power output for whole-home backup, solar self-consumption, and on- and off-grid energy storage.
Expandable up to 368.64kWh
Connect up to 18 batteries in parallel to expand total storage capacity from 20.48kWh to 368.64kWh, supporting villas, farms, large homes and selected light commercial projects.
IP65 Enclosure Protection
The IP65-rated enclosure helps protect internal battery components against dust and water ingress, giving installers greater flexibility when selecting a suitable installation location.
Integrated Battery Safety System
The battery combines stable LiFePO4 chemistry with an intelligent BMS, integrated circuit breaker, and aerosol fire suppression system for multi-level operational protection.
Smart Monitoring and Inverter Communication
WiFi and Bluetooth provide convenient access to battery information, while CAN and RS485 interfaces support communication with a wide range of compatible low-voltage hybrid inverters.
8,500+ Cycles and 10-Year Warranty
LiFePO4 battery chemistry supports at least 8,500 cycles under specified test conditions. A 10-year warranty provides long-term assurance for distributors, installers, and project owners.
OEM and ODM Customization
GSL ENERGY supports private labeling, customer logos, cabinet colors, product nameplates, packaging, interface languages, and project-specific battery configurations for qualified bulk orders.
B2B Integration and Technical Support
Support is available for inverter compatibility verification, communication protocol matching, system configuration, technical documentation, export packaging, and remote commissioning guidance.
Technical Specifications
Technical data for the GSL ENERGY LL-WE-20K 51.2V 400Ah floor-standing LiFePO4 solar battery.
Nominal Parameters
| Model | LL-WE-20K |
| Battery Chemistry | LiFePO4 |
| Nominal Voltage | 51.2V |
| Battery Capacity | 400Ah |
| Nominal Energy | 20.48kWh |
| Usable Energy | 19.456kWh |
| Depth of Discharge | ≥95% |
| Scalability | Up to 18 Units in Parallel |
| Maximum System Capacity | 368.64kWh |
Electrical Parameters
| Operating Voltage Range | 44–57.6V DC |
| Maximum Charging Voltage | 57.6V DC |
| Maximum Charging Current | 200A |
| Maximum Discharging Current | 200A |
| Maximum Power | 10kW |
| Communication Interfaces | CAN / RS485 / Bluetooth / WiFi |
| Display | LCD + LED |
General Parameters
| Dimensions (W × H × D) | 435 × 955 × 287mm |
| Dimensions (Imperial) | 17.1 × 37.6 × 11.3in |
| Approximate Weight | 192kg / 423lbs |
| Installation Method | Floor-Standing with Integrated Wheels |
| Enclosure Protection | IP65 |
| Maximum Installation Altitude | Below 4,000m |
| Integrated Protection | Smart BMS / Circuit Breaker / Aerosol Fire Suppression System |
Operating and Lifetime Parameters
| Cycle Life | ≥8,500 Cycles |
| Cycle Test Conditions | 25±2°C, 0.5C Charge / 0.5C Discharge, 80% EOL |
| Charging Temperature | 0°C to 55°C |
| Discharging Temperature | -20°C to 55°C |
| Storage Temperature | 0°C to 35°C |
| Recommended Storage Period | 6 Months at 25°C / 3 Months at 35°C / 1 Month at 45°C |
| Warranty | 10 Years |
Certifications and Documentation
| Battery Safety | CB-IEC 62619 |
| Electromagnetic Compatibility | EN 61000-6-1 / EN 61000-6-3 |
| Transport and Safety Documents | UN38.3 / MSDS |
Specifications are subject to product configuration and technical updates. OEM/ODM options, inverter compatibility and communication protocols should be confirmed before ordering.
Email: sales@gsl-energy.com
Tel: +86 755 84515360
Address: A602, Tianan Cyber Park, Huangge North Road, Longgang District, Shenzhen, China0086 13923720280