You said you have a dual pro onboard charger in your boat, I do as well. My question is this after the red lights all go to the single green indicating 100% charge does your charger turn itself off meaning, no hum or no lights at all showing or does it continue to hum and show a green light charge? The reason I ask, is their website semi-indicates that the charger completley shuts down with no trickle charge taking place, if it's still on and humming how can it not be giving the battery some juice, does this seem strange or maybe I'm off base.