4.2kWh LiFePO4 Home Energy Storage Battery 3.99kWh Usable Energy 90% DOD Wall Mount Solar Backup Battery 20 Units Parallel Expandable
- IATF 16949
- ISO 9001
- ISO 14001
- ISO 50001
- ISO 45001
- UN38.3
This 4.25kWh residential LiFePO4 energy storage system adopts premium automotive-grade lithium iron phosphate cells, featuring 3.99kWh usable energy and 90% high DOD deep discharge capability. It efficiently stores surplus solar power to lower household electricity expenses and provides reliable emergency backup power during grid outages. Designed with dual wall-mounted and floor-standing installation modes, the slim and lightweight unit supports up to 20 units parallel expansion to meet diversified power demands for different household solar systems. Built-in full-featured intelligent BMS ensures comprehensive safety protection and ultra-long service life. With wide temperature & humidity adaptability and complete international authoritative certifications, this energy storage battery delivers stable, safe, and long-term unattended indoor operation, ideal for global solar installers, system integrators and bulk purchasers.
Specifications
Key Features
Product Description
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.
Customer Reviews (2)
Light‑weight 33kg slim cabinet saves installation space for apartments, garages and basements.
Over 15‑year service life plus 10‑year official warranty greatly boosts end‑user trust. Rich certifications including UL1973 smooth our cross‑border export business.
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