Invertor power consumption

behengold wrote:
I'm charging off a 20 amp circuit. I will boost to 20 amp and see what happens. I also plan to add more solar. Just wanted something to keep batteries from completely discharging . Worked for that purpose with everything disconnected. I considered the smaller inverter option as well. The fan I'm using is a window fan. I have a fantastic fan as well. Thought the stand alone would use less juice and pull more air. Today the batteries showed 12.5 amps. After running the fan for 3 hrs Its 12v. I'll charge overnight and see if I can get over 14v.sorry for the double post

The DC output of your inverter/charger is not limited to the 20 amp input of it's 120V circuit. You can raise the output to it's highest setting and not damage your batteries.

Nearly all AGM batteries like a high charge current and appreciate being charged to 105 per cent full. If you have a stand-alone charger, put that on the batteries, also. I am thinking you have never fully charged the batteries.