Home made battery isolator system
I thought I'd put this out there in case anyone else likes the idea; I never liked the battery isolators I had. They had voltage loss and sometimes just failed. Then I went to a marine type battery s...
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The SMART SOLENOID do about the same thing except they measure the DC VOLTAGES from the truck charging system and the add-on batteries are only connected when the truck system is charging batteries with the motor running.
The BLUE SEA SI-ACR smart relay does the trick...
The SMART SOLENOID idea replaces the DIODE BASED isolators we all used in the past which had 0.7VDC VOLTAGE DROP across the high current diodes. With todays deep cycle battery charging technology there is a hugh different is charging batteries at 14.4VDC verses 13.7VDC after voltage drop occurs using smart mode charging technology. With 14.4VDC you can re-charge a deep cycle battery back to its 90% SOC in around three hours of charge time whereas 13.7VDC will take almost 10-12 hours to do the same 90% SOC charge. The Blue Sea SI-SERIES 120AMP add-a-battery package cost around $100 from AMAZON.
Roy Ken
The BLUE SEA SI-ACR smart relay does the trick...
The SMART SOLENOID idea replaces the DIODE BASED isolators we all used in the past which had 0.7VDC VOLTAGE DROP across the high current diodes. With todays deep cycle battery charging technology there is a hugh different is charging batteries at 14.4VDC verses 13.7VDC after voltage drop occurs using smart mode charging technology. With 14.4VDC you can re-charge a deep cycle battery back to its 90% SOC in around three hours of charge time whereas 13.7VDC will take almost 10-12 hours to do the same 90% SOC charge. The Blue Sea SI-SERIES 120AMP add-a-battery package cost around $100 from AMAZON.
Roy Ken
