Originally Posted by WILLIE C
How do I figure power usage ?
When talking about running your rig disconnected from a power source your talking running on batteries. To run on batteries we must monitor them and this is done with one of these.
It is installed in the negative lead from the battery like this.
Then a system is installed to monitor and calculate battery usage and status.
You have the Trimetric, Magnum BMK, Midnight Wizbang Jr, and other devices to monitor this device and tell you where you are with your battery bank. You will need a generator for those times when Solar is not doing it and can start with one to charge the bank when needed while determining how much bank is needed. Determining which generator to buy is yet another can of worms. Personally I would start with a Champion 3500/4000 RV ready unit for around $300 to $350. It will run your rig fully including the A/C and is one of the most reliable units out there. If you move to an inverter type there is nothing wrong with having old reliable in your back pocket.