How long will two homemade DIY 12v 100Ah LiFePO4 batteries run an electric space heater? November 28, 2023 DIYchanll DIY Solar Power Systems DIY Solar How long will two 12volt lifepo4 batteries connected in series and a 4000watt 24 volt split phase inverter power a 1500 watt electric oilfilled radiator heater? Credit Our Black Cat Cottage