Re: Honda Generator not triggering charger
There is a logical explanation of the OP's experience with his Honda gen and the floating ground--his boat is probably dangerously mis-wired.
The 30 amp shore power cord has three conductors--Load, Neutral, and Earth. The Honda is wired to put out 110v between the Load and Neutral, and the Earth is not connected. The outlet on the dock also has 110v between the Load and Neutral prongs, but the Earth is connected to the Neutral at some point in the Marina.
If the OP's boat saw power at the panel and inverter from the dock power, but didn't see it from the Honda until he jumpered the Earth to the Neutral, that means his dock power cord or boat wiring has crossed the Neutral and the Earth. This is VERY unsafe, particularly in fresh water. If he doesn't understand this, he should get an electrician to check out his boat as soon as possible.
BTW, if the Freedom load is too much for the Honda when the batteries are depleted, you can set the maximum current the Freedom charger will draw through its remote--read the manual.