I have two 12v 100ah lifepo4 batteries in parallel (50a max thru the BMS) which I want to use for an inverter. Most of the stuff in my van is 12v, but I’m thinking of AC to run some tool chargers (makita, hitachi, etc) and a 24” tv with a DVD player. My thought is to get a 1500 to 2000w inverter so I can power an induction hot plate or small microwave. I will let the inverter control (or decide) what I will use with it since a cpap and a refrigerator are my only “must have’s”. So my question is: am I limited to 1000 watts output by only having 100a of battery power available? If so, can I just buy a 3rd matching battery to make a 1500w psw inverter practical? It would sure help to power the potential microwave.