B2 series Low Voltage Battery
The SAJ B2 Low Voltage Battery is a modular, scalable solution up to 40kWh for home solar systems. Built with safe and reliable LiFePO4 batteries, it supports flexible installation, 1C charge/discharge, and IP65 outdoor protection—making it a high-performance LiFePO4 solar battery backup for home with excellent long-term value.
Designed as an advanced low-voltage solar battery solution, the SAJ B2 Series lithium battery delivers stable energy storage performance for residential applications. With reliable battery technology and flexible scalability, this low-voltage lithium-ion battery system helps homeowners maximize solar energy usage while ensuring long-term operational safety and efficiency.
Flexible and Scalable Energy Storage
Safe and Reliable Performance
High-Performance Charging and Discharging

Flexible and Scalable Energy Storage
Designed as a reliable low voltage solar battery solution for residential energy storage, the SAJ B2 Series combines modular scalability with flexible installation to support evolving home energy needs.
•Modular Design Scalable Up to 40kWh
•Wall-mounted or Ground-mounted offers versatile installation options
•Remote Firmware Upgrade
Safe and Reliable Performance
Built with advanced LiFePO4 technology, the SAJ B2 Series delivers the stability and safety expected from a high-quality low-voltage lithium-ion battery for long-term residential solar applications.
•LiFePO4 Batteries Safe and Reliable
•IP65 Outdoor Design ensures reliable operation in various environments


High-Performance Charging and Discharging
Engineered as a high-efficiency low voltage lipo battery solution, the SAJ B2 Series supports fast charging and responsive energy delivery for modern home solar systems.
•Support 1C Charge and Discharge Rate
•Maximizing energy availability and responsiveness
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