I've had a system on my boat for three years with no probs that consists of a starter at 60 amps and a leasure battery at 110amps both are on individual isolater switches and fuse panels but there is a voltage sensitive relay between the so that the starter charges to 13.4v then the relay switches to charge both battery's from the same alternator. I also have a solar panel at 85w that is permanently connected to the starter battery and when this is full the relay switches to charge the leasure battery. After three years on a mooring with no mains power both battery s are working fine and have never been off the boat for charging. All lighting is led we have a small flat screen tv and the boat is in the water winter and summer.
Another vote for Voltage Sensitive Relays from me. It makes the batteries a no-brainer to charge regardless of the charging source (Alternator, solar, mains)
needed,a morons guide to battery switches
Posted - 28 Aug 2018 : 22:41:36
