How's it going Dave?
Yes you can use your existing inverter. On my setup... I use the solar to charge the batteries only. I wired my controller before my battery disconnect so that when I shut everything down, the solar will still maintain the batteries. If you have a good controller, it won't over charge the batteries. Your inverter just runs off of the batteries so it won't matter which one you have. I'm hoping it will cut down on my generator time

Sent from my GT-I9300