Hey all I have a ctek dc/dc charger and my np300 alternator won’t charge the service battery as the crack battery is only pushing at 13vokts cause if the smart alternator not kicking in cause the crank battery is full at 12.7 volts. The ctek kicks in at 14.7 volts to charge but cause the crank battery is full the alternator won’t charge at the rate to start the ctek dv/dc charger to charge the service battery , does anyone know how to sort this out ?? Can you turn off the smarts so tje alternator just charges when the car runs ?? Any help I would appreciate , thanks