jrseitz
Member
What voltage and amp hour batteries are they? The AC and pump will draw 7-8 amps at 120 volts. Thats 70-80 amps at 12 volts, batteries are only rated for 50% discharge usually, figure 70% duty cycle and some loss due to inverter inefficiency and cable loss - dealer probably isnt that far off unless you have some pretty good sized batteries..
I am really a num nuts when it comes to any thing electrical. From what I can tell the two batteries are MCA 81, COA 650, and it said average minutes @ 23 amp draw is 225.