Dutch_12078 wrote:
I don't know why he's using starting batteries for the house though, instead of deep discharge there too.
The Wal-Mart starting batteries actually have a higher AMP-HOUR rating than my previous dual-purpose battery. Regardless, other than starting, my primary electrical needs are for a sonar/chartplotter, VHF radio and live well pump. Yes, the bilge and nav lights are also connected with the house batteries, but they're never used. The bilge is actually smaller than the live well pump, which I've left running all night before. It will drain the battery down to about 10 volts. But the boat is a small inshore vessel, so I could literally run almost any kind of battery for the house.