EG4 WallMount Indoor 14.3kWh 280Ah Lithium Battery | 51.2V | Heated | UL1973 UL9540A

The EG4 WallMount Indoor 14.3kWh 280Ah Lithium Battery is a high-capacity, low-voltage residential energy storage solution engineered for serious whole-home backup and load shifting. Using lithium iron phosphate (LiFePO4) cells and an intelligent Battery Management System, it delivers reliable, safe power with real-time monitoring of cell voltage, pack voltage, current and temperature.

Designed specifically for indoor wall-mount applications, this unit combines a slim profile with integrated 600A busbars, multiple connection points and selectable closed-loop communications with popular inverter brands. An onboard LCD touch screen makes configuration and diagnostics simple, while dual onboard fire arrestors and an integrated self-heating feature provide additional layers of safety and cold-weather performance.

With over 8,000 cycles at 80 percent depth of discharge and a design life of more than 15 years, this 14.3kWh battery is built for long-term, high-demand residential storage systems that need both capacity and resilience.

Key Features

Application: Indoor low-voltage residential energy storage

Chemistry: Lithium iron phosphate (LiFePO4) for high safety and stability

Total Energy Capacity: 14.3kWh

Nominal Voltage: 51.2V

Capacity: 280Ah

Battery Management System: Intelligent BMS with real-time monitoring of cell voltage, module voltage, current and temperature

Balancing: Passive cell balancing and advanced battery control for optimal performance

Closed-Loop Communications: Selectable RS485/CAN integration with EG4, Schneider, Sol-Ark, Victron, Growatt, Megarevo, Luxpower and Deye inverters

On-Board LCD Touch Screen: Easy access to status, configuration and monitoring

Integrated Busbars: 600A internal busbars with four positive and four negative terminals

Parallel-Friendly Design: Multiple terminals reduce or eliminate external busbars when paralleling batteries or inverters

Emergency Stop Capability: Optional ESS disconnect can shut down all batteries and compatible inverters from a single point

Self-Heating Feature: Internal heating maintains proper cell temperature in cold environments

Dual On-Board Fire Arrestors: Added protection against thermal runaway and high-risk conditions

Ingress Protection: IP20 rated for indoor environments