Hooking up a circuit breaker to run a lithium battery and a factory agm battery on your Harley

Hooking up a circuit breaker to run a lithium battery and a factory agm battery on your Harley-Davidson ( or other Bagger ) and charge them separately.
You should never mix agm and lithium but sometimes you have no choice. This is how to charge them both separately. Adding a circuit breaker makes this a simple
Task .