This residential solar battery project uses a 51.2V LiFePO4 home battery to store rooftop solar energy for evening use and backup power during grid outages.
The battery was configured around the household load, solar inverter, required backup time and available installation space. The project also covered Smart BMS settings, inverter communication, circuit protection and system testing.
The battery capacity and inverter output were selected according to the household’s daily electricity use, essential loads and required operating time during a grid outage.
Key project requirements included:
Battery sizing also considered inverter efficiency, usable battery capacity, reserve settings and expected changes in household energy consumption.
A 51.2V LiFePO4 battery was selected to match the inverter voltage and required storage capacity. The enclosure, terminals, communication interface and cable layout were confirmed before assembly.
The battery configuration included:
The inverter model, firmware version and communication protocol were confirmed before the battery specification was finalized.
CAN or RS485 communication allows a compatible inverter to receive battery data and apply suitable charging and discharging limits. The integration review covered:
Inverter compatibility cannot be confirmed from battery voltage alone. The inverter model, firmware and BMS protocol must be checked for each project.
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The installation layout was planned around the battery enclosure, inverter position, cable length and access for inspection and service.
The battery was installed in a protected location with suitable mounting, ventilation and clearance. Installation checks included:
Final installation requirements depend on the battery model, inverter, local electrical standards and site conditions.
During normal operation, the battery stores available rooftop solar energy for use after sunset or during periods of higher household demand.
When the grid is unavailable, the inverter and battery can supply selected essential loads. Actual backup time depends on usable battery energy, connected load, inverter efficiency and the configured battery reserve.
Estimated Backup Time (Hours) = Usable Battery Energy (Wh) ÷ Connected Load (W)
For example, a battery with 8,000Wh of usable energy can support a constant 1,000W load for approximately eight hours. Actual runtime may be lower because of inverter losses, temperature, battery condition and changes in household load.
Additional batteries can be connected in parallel when more storage capacity is required, subject to the approved battery, BMS and inverter connection limits.
The battery pack was assembled and tested against the approved project specification before shipment.
Production and quality checks included:
The completed system stores rooftop solar energy for evening use and provides backup power for selected household loads during grid outages.
The battery supports inverter communication, system monitoring and future capacity expansion. Final operating limits are managed by the Smart BMS and compatible solar inverter.
We manufacture residential LiFePO4 batteries for solar equipment suppliers, installers, distributors and private-label energy storage brands.
Battery specifications can be developed around the electrical, mechanical, communication and branding requirements of each project.
OEM and ODM options include:
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Send us the required system voltage, storage capacity, inverter model, communication protocol, installation type, backup-time requirement and estimated order quantity.
Our engineering team will review the requirements and recommend a suitable residential LiFePO4 battery configuration for sample development or volume production.
