Dead Batteries when Boondocking

[AKwanderer]

I've dealt with dead batteries for a long time in my rig. It came with one house battery so I added two more. I eliminated my squirrel cage heater, mounted a ventless heater inside (my biggest power drain), and a high output alternator. On one trip I noticed with my little 300w inverter going, powering my laptop, in the course of one movie with no lights on I had lost power with the engine running. So I did some research and found out my alternator only putting out 50-60 amps peak, at an idle much less. So you lose about 10-20 amps right off the top to run the car, then I forgot exactly how the rest of it works but I was losing power in the charge. Now I've only got 32 miles of road end to end and a good chunk of that is 25-35 so I'm not putting in long drives to charge my stuff (longest drive is about 20 minutes one way). So I got myself a 140amp alternator that puts out 60-70amps at an idle. Now my batteries are always topped and I can watch movies whenever.