Well the alternator is "probably" capable of more than 150 amps at 14vdc....don't know the exact stock Ford spec, but running a fridge and a TV on inverter would not likely overcome that alternator output. I would be more concerned about clean battery terminals/connections (both coach and chassis) and the condition of the coach batteries. Have they been damaged by many deep discharge cycles; electrolyte solution below the top of the plates causing sulphation and reduced capacity etc. This is an opportunity to take some time and check things out, batteries, connections, voltmeter test all charging situations on both coach and chassis batteries.....while on shore power; Gen power; alternator power, and make sure your BCC is and other things like converter are working as they should. It's a great way to learn your electrical systems so if something goes off the rails on the road you know where things are and understand how they should work. Happy Camping.
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