what voltage for the 'house'?

Bob , don't you mean 60a*14v 840 watts
You know you can't charge 12v battery with 12v,bit requires a voltage, above battery nominal full charge which is 12.6v,
A fully charged fla battery should read 13+v when charging is turn off

Cool

A very few RVers have a 48V solar, inverter, charger and battery. And a 48V to 12V DC to DC for the house.

My Morningstar solar controller is limited to 60A output. That's 60*12 = 720W for a 12V output. If I switched to 48V then the limit is 60*48 = 2880W for that controller.

While 2880W is a lot of power for boondocking, not so much for utility power:
a 20A utility plug is 2400W, 30A is 3600W and 50A is 12000W available 24/7.

Update: Per suggestion the above voltages are generic for comparison and actual battery charging voltages vary based on a number of factors including battery temperature. :R

Mex,

I could not agree more.

Years ago I worked on 120+ volt DC systems. Series string 3 cell and even single cell batteries. Every voltage has its positive and negative advantages. Chuckle.