Posted by tmann45 on 05/22/15 - 7:50 AM
#20
gchuba wrote:
In addition to combining the charging the ACR Relay disengages the secondary battery when starting the motor. The relay is connected the the starting position of the key (not the "on" position). As you flick the start, some internal connection gets interrupted.
Garris, the Blue Sea ACR calls that Start Isolation and it removes the connection between the two batteries (opens the relay). Depending on the loads you have and your battery bank capacity, it might not be necessary on all setups. I did not need that capability and did not wire mine up to the ignition switch.