Imported core electronic components with a lifespan of 10+ years The component MOS tube can be replaced, which is convenient for after-sales maintenance The relay performs switching operations for tens of thousands of times Up to 10 batteries can be connected in parallel 4 safety protection management level Grounding design, anti-surge, and alarm function Floor-to-ceiling type against the wall, with a nut on the back to connect with the wall, anti-fall (optional wheeled version