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Battery Isolator Circuits

TYPICAL BATTERY ISOLATOR CIRCUITS
TECH TIPS
The two alternator, two battery isolator allows both
alternators to charge both batteries.
The one alternator, two battery isolator with a battery selector
switch will allow both banks of batteries to be charged regardless
of what position the battery selector switch is in.
In the event of one alternator failure, both
batteries would be maintained
by the working alternator.
Remember, when batteries are connected
in parallel, they become one large battery.
The most common battery isolator is the one alternator,
two battery unit. It doesn’t matter how many batteries are connected
in parallel to the battery 1 or 2 terminal.