I have a RedArc solenoid and a Victron 75/15 Smart Solar Controller. Can I use the combination of these two units to charge an 12V AGM Deep Cycle auxiliary battery from the car battery/alternator when the car is running ?
The RedArc solenoid is no longer battery sensing and only works via the override lead being pulled to 12V. I'd connect this override lead to the car's ACC or running output of the vehicle.
Second, the Victron unit provides multi-stage charging and is configurable for multiple different batteries and provides some nice feedback via the Victron App.
Third, if this combination does not work, can I add a RCNUN BuckBooster ( Input 8-32V DC, Output 13.8V 8A - Constant Current output from 8-13.8V) between the solenoid and the MPPT Controller to regulate the output?
I have been pondering this for some time. I have the piece hence the interest. Thank you.