12 volt batteries, solar panel and inverter.

[grandpa123]

Anyone with information on this would be helpful. I just installed a 7 watt solar panel to keep my two 12 volt batteries topped up. I also would like to hook up a 110 volt inverter to the system to change my 12 volt to 110 and hook this up through my trailer 110 plug in which it would go through that converter to run the micro wave in the trailer.
as the converter changes the 110 volt to 12 volt for running the lights and charging the batteries. What kind of problem can I expect to have. The Micro wave is run very seldom but the wife does like to warm thing up occasionally when we aren't hooked into grid power.

[2oldman]

grandpa123 wrote:
... and hook this up through my trailer 110 plug in which it would go through that converter to run the micro wave in the trailer.

Not sure I understand that part, but turn off the converter when using an inverter. Batteries cannot charge themselves.