
In the last chapter in this Online Book we looked at splitters and relays to combine battery banks for charging and concluded that while usable, both had a fundamental problem: engine battery overcharge.
Now let’s move on to a solution that fixes that, albeit at a price in both money and complexity.
There are two variants to think about:
- DC/DC chargers, like the one from Victron I just installed on our new-to-us J/109.
- Alternator-to-battery chargers from Sterling Power.