Our unit draws 1-3 amps AC when charging the batteries. Start turning on DC lights and stuff and the amps go up.
If you can plug into a GFI outlet.
50 to 30 adapter and 30 to 15 adapter
I have this:
Prime RVAD3050901 RV Adapter, 30 Amp Plug and 50 Amp Connector with Indicator Light and Handle
http://www.amazon.com/Prime-RVAD3050901-Adapter-Connector-Indicator/dp/B005IZ170Y/ref=sr_1_4?ie=UTF8&qid=1381846556&sr=8-4&keywords=50+amp+to+30+amp+rv+adapter+with+light
and this:
Conntek 15 Amp Male Plug To 30 Amp RV Female Connector RV Adapter
http://www.amazon.com/Conntek-Male-Female-Connector-Adapter/dp/B001TO4WCS/ref=sr_1_4?ie=UTF8&qid=1381846684&sr=8-4&keywords=50+amp+to+30+amp+rv+adapter
I put this on the outside wall of the garage:
