Anyone got any tips for reviving my new boats electrical system. I delivered it two weeks ago to my slip from dealer and left it unhooked to shore power since my new slip didn’t have 50 amp service. Powered down ALL 12 volt loads on the push button panel and figured the 4 big agms would keep it powered for 2 weeks. 4 volts today. The touch screen interface that works all the shore power/generator/battery switching and status is dead. Running motor and/or plugging into shore power don’t revive the little touch screen controller. Touch screen controller lines up and starts generator so I don’t know how to start that. Touch screen controller also shows batt voltage etc so only way to read that is meter right to battery terminals. I’m guessing I need to get power enough to revive the touch screen controller and 12v house bank bus to some reasonable voltage, but maybe the charger or the controller need to see near 12 volts to start the recharge?