I’m looking to build a simple solar system to charge my two electric cars away from the house. This will be a stand alone system. No grid connection, no connection back into the existing domestic system. (Domestic system is hybrid 7kw solar, 48v battery bank with a tie to grid). I am considering expanding a small system I built to power my workshop. (2 x 450w panels, a cheap 3kw inverter and 2 x 245ah 12v batteries). I think eight 500w+ panels will be sufficient for the project. . Can anyone give me some recommendations on the plan. Should I just ignore the bits I have and start afresh? Ideas about a good simple car charger? I have a myenergi Zappi for the house which is very unimpressive and expensive. And a cheap 230v plug in thing that came with my KIA that is stunning on the KIA but won’t charge my Peugeot. Do I even need batteries? Appreciate any advice. Location Spain.