Equipped with automotive-grade LiFePO4 cells, total energy reaches 4.25kWh and usable energy is 3.99kWh, supporting 90% high DOD deep discharge, fully store surplus solar power to cut household electricity costs and handle blackout power supply.

Built-in comprehensive BMS management system with overvoltage, overcurrent, short circuit, undervoltage, overheat protection & cell balance function; service life over 15 years under 25℃ environment, 10-year official warranty for reliable long-term use.

Support wall-mounted & vertical floor two installation ways, slim compact dimension 370*500*140mm, only 33kg light weight, fit garage, basement and small apartments without occupying extra floor space.

Expandable design allows up to 20 units parallel connection; equipped with LCD control screen, Bluetooth, CAN/RS485 communication ports, realize real-time battery data viewing and flexible capacity expansion for large household solar systems.

Wide temperature adaptability: charging 0℃~55℃, discharging -20℃~55℃; passed CE, UL1973, IEC62619, UN38.3, MSDS certifications, safe indoor unattended operation within 5%~95% humidity environment.

4.2kWh Automotive Grade LiFePO4 Home Energy Storage Battery 3.99kWh Usable Energy 90% DOD Wall Mount Solar Backup Battery 20 Units Parallel Expandable