grade aa 3.2v 280ah lifepo4 lithium ion batterysunsynk 3.6 kw hybrid inverter58.4 volt 16s lifepo4 battery chargerlifepo4 3.2v 280ah lf280зарядноlithium ion battery capacity calculation19 batterie gehusegrowatt 3000mtls 51.2V Batterylifoe4 16pcslifepo4 cells uk48v 200ah battery60v 30ah lithium battery for electric scooter dual charger