[Chester Stone]

Adrian, please see Steve Bare's post and determine if you have the low voltage chassis charger in the street side bay. If so, my view is the you should seldom, if ever, need to merge the batteries. The engine will charge both sets of batteries through the issolater (sp?) and the Zantrex, tied to the small chassis charger, should keep both charged when operating with the generator or external power. A few years ago I accidentally merged the batteries, ran down the house batteries and could not start the engine. Thereafter, I taped the merge switch in the off, center, position. Just my opinion based on my experience.