51.2v 392Ah 20KWH Battery

The SAIL SOLAR 51.2V 392Ah 20kwh roller‑type LiFePO4 energy‑storage battery is a highly reliable storage unit for residential photovoltaic systems. Equipped with a smart BMS, it delivers comprehensive protection against over‑voltage, under‑voltage, over‑current and over‑temperature to guarantee safe and stable operation. Built‑in casters enable easy relocation, while its compact form saves installation space. Supporting RS485 and CAN‑Bus communication protocols, this battery can actively communicate with most hybrid solar inverters. It works with solar panels for self‑consumption and serves as a backup power source during grid outages. Multiple units can be paralleled for capacity expansion, making it ideal for household energy independence, peak‑valley arbitrage and emergency power supply. With over 6000 charge‑discharge cycles, it offers outstanding long‑term cost‑performance.