model 6345 power converter 45 amps?

When I disconnect my battery with shore power hooked up I lose my 12 volt lights. Is this normal. Do I have to have the battery when I am hooked to shore power??
Tracy, August 2015


done
Operators manual here...

https://tinyurl.com/kdmd6v7

It's not much of a power source if it can't make 12v from mains electricity - so something is amiss

Good luck..., August 2015