OK, new thought...
I already have the solenoids. (they run best on a 12 volt system) but the 6 volts seem to have more amp per pound than the 12 volt batteries.
Is it possible to run the motors on the tandem 6 volt batteries running aprox. 24 amp hours, and run the solenoids at the same time (through a different wiring harness off of the same batteries) as a 12 volt system? I'm not an electrical engineer (as my photo shows) so any help is appreciated.
Tom