280ah lifepo4 batterygrowatt 3 phase 48V Batterygrowatt spf5000tl compatible LiFePO4 Batterydelta solar inverterbms lifepo4 4s 12veve lifepo4 zellenamaron inverter pricegrowatt hybrid solar inverter 48V Batteryshenzhen basen technology 280ahlithionics battery for saleomega inverterlifepo4 charge profile