spf5000es growatt 51.2V Batteryac dc 2 unit server racklifepo 280ah basen shansan48v lithium batteribatterie lithium 12v 100ah prixdeye sun 10k glithium battery charger seat batterylithium solar batteries prices in south africa1kva solar inverter with battery pricegrowatt inverter 3600mtl 51.2V Battery12v marine batterylifepo4 аккумулятор�shoto 48v