My daily driver ('97 Geo Metro, I know, I know) developed a bunch of "grunge" for lack of a better term on the positive connection to the battery. After I cleaned it up and reattached the cable I found that even when tightened as much as possible the cable was still a bit loose on the battery terminal--loose enough that the car wasn't getting any juice. I removed the cable, wrapped the battery terminal with two thicknesses of aluminum foil and reconnected everything, poof, it works fine now. Is this going to stress the alternator in any way or am I good to go? Thanks for the opinions.