12 Volt Solar panel for 4 6v batteries in series parallel

No not disregarding at all. Just have a 3 day boondock coming up soon and don't have big cash to spend on a nice solar system yet. I'm not going to mount on the roof yet, just place on top upon arrival. The renogy solar kits look to come with alligator clips or O rings to attach to battery terminals. Just wondering which terminals of the 4 batteries that I would attach too and if its ok.