Battery or no Battery

wye
wye Forum Participant Posts: 241
edited August 2014 in Caravans #1

Somebody help me please !

I work on a commercial site and a seasonal tourer tells me he runs full electrics without a battery , ok I understand   on E H he will have 240 , but he runs a 12 volt pump , 12 volt lights and the 12 volt fan on his electric heater !

Is this possible , if so how does it work ?