Great answers so far. What I have found living off-grid for 6 years may help you with some ideas. Stay with 12DC to use as a power source. Using inverters only when you have too. Don’t go from 12VDC to an inverter, unless you have no other choice for power. You lose a lot of energy in the conversion from 12DC to 110 AC. With my iPhone, iPads, and any other accessories onboard, most have the option to use both, but I get better working time staying with the 12VDC, over using an inverter and then using 110 AC. So far, there is more solar charging equipment, and is a little cheaper and easier to replace when you have a problem. Vance.