I have a situation where I need to add some extra Capacitance that needs to sometimes be added to a RC discharge circuit. There is 48 volts on the rails with extra capacitance controlled currently with two relays. Relays need current that drains the system. they are two small 12 volt relays but they still use current. would it be practical to use Higher current FET’s instead of relays? I could control them with one of the Arduino processors. My biggest fear is that the FETs will have a small amount of resistance making the capacitors drain slower and hosing the system up. Any thoughts??
Circuit is attached