Re: Boost switch Blue Sea 7622
Reply #50 –
This is the ultimate automatic battery combiner relay.
The switch is also lighted, so you know the status at a glance. It has both electric and mechanical forced combined or disconnect functions.
ML-ACR Automatic Charging Relay with Manual Control - 12V DC 500A - Blue Sea...
You will find that most ACR relays with voltage settings based on typical alternator and also float charge settings. As fully charged AGMs and Lithium's will hold the relay closed. In practical use this works out really well for lithium house, AGM engine start combinations. When running with the inverter/charger energized and in float/power supply mode having the AGMs in parallel makes for a good combination to absorb voltage spikes. Unplugged the higher voltage from the Lithium's are ideal for the float maintenance of the AGM. I was planning and still considering going this route. However, the original diode block, Duvac set up is working well to charge the 600 A/H Lithium bank. It provides a level of current limit due to the uncompensated voltage drop across the diodes. I see the current is limited to about 120 amps which is reasonable for my 270-amp alternator.
Topic: Boost switch