I have a small off grid cabin we are building, for the next 5 years it will be used for weekends mostly , in about 5 years it will be used during summer months mostly full time. Right now I want to build a system that will run lights and TV. Microwave and Refridgerator will be run off of generator for now if and when they are needed. I just purchased 4 Lifeline 6 volt 300 ah batteries at a super price that I couldnt refuse. My question is and if I got what I read right, should I go with a 12 volt system that would have 600ah or a 24 volt system with 300ah. I believe from what I read I have the amp hours right. In 5 years, I will have to upgrade I know. I was leaning towards 12v with twice the Amp hours, in case I want to run a keurig coffee pot or a microwave. Just looking for some input and recommendations. And I know people will ask why I bought those batteries, I was purchasing some food grade barrels to make a spring box, and the guy had just replaced 6 batteries in his RV because 2 of them were bad, the other 4 checked out fine but he decided to replace all 6. He offered me all 4 batteries for $200 total so of course I jumped on them. Any help would be greatly appreciated. Also I am figuring to purchase one of the all in one charge controller, inverter systems to make things simple, any thoughts on those would also be appreciated.