How to wire an inverter?
With my new AGM batteries on the way, I'm looking into getting an inverter or a charger/inverter. Ultimately I'd like to be able to run the microwave every now and then from the inverter/battery. I'm ...
Forum Discussion
work2much wrote:donn0128 wrote:
OK, before you get started have you thought this thru thoroughly?
A 1000 watt microwave will consume 8.3 A@ 120VAC or approx 83DC amps. Not counting losses, that means a 200 AH battery draining to approx 50% discharge gives you about 10 minutes run time by my calculations.
I think your calculations aren't correct. If the microwave consumes 83 Ah it means it uses 83 amps per hour. You would use up approximately 14 Ah in ten minutes.
You guys posted this while I was typing.. :-)
I chime in a lot on electrical stuff, I'm an Electrical Engineer by day. Work2much has it right. 200ah is a lot of battery juice, you won't kill it in 10 minutes with just about anything.
But then again, the OP didn't mention his battery bank either-- I surely wouldn't recommend doing this on a single batt, two is extremely minimal for microwave use. I have five 140Ah batts, and I am extremely un-conservative in my use of them. I can get 4 days of making coffee, microwave, TV on Dish, and even an electric blanket all night before the inverter starts complaining of low voltage while running my coffee maker or nuker.
