Let's say you want to keep your battery. Well, first of all, cleaning is needed with a wire brush. 2nd, if your not driving it for two weeks or more, it's advised to disconnect the battery, and finally, a drive for at least 20 minutes, twice a week is advised, but I'm sure that's not a big deal for most. Anyway, have any of you tried these techniques? How about tips on buying car batteries? Which ones are the best value etc.?