victron multiplus ii 48 5000sok server rackinverex solar acdeye 8kgrowatt 2kw compatible LiFePO4 Battery280ah lifepo4 battery boxlifepo4 ladegerät 12v testbatera litio recargable carro manualde golflithium iron phosphate battery 3.2 vsph5000 compatible LiFePO4 Batterylifepo4 24вsamsung lifepo4 cells