I have a V4L generic (808d-1) white auto battery that had a very hard draw. Was going to toss it anyway, so I did this:
1. poured a couple of tablespoons of 91% isopropyl into a small, shallow dish.
2. dipped the threaded end of the battery into the iso and swished it around and around.
3. used an old toothbrush dipped in the iso and scrubbed the hell out of the threaded end, face and threads.
4. immersed the batt again into the iso and swished and swished.
5. blew vigorously on the area in question.
6. set the thread end back in the iso and let it sit for 10 minutes.
7. blew like crazy on the area until no more droplets of iso flew off.
8. let it dry for 10 minutes
VoiLa! The draw is like new!!!! Works like a charm! Saved $12.50
Am I Goooooood, or what?
1. poured a couple of tablespoons of 91% isopropyl into a small, shallow dish.
2. dipped the threaded end of the battery into the iso and swished it around and around.
3. used an old toothbrush dipped in the iso and scrubbed the hell out of the threaded end, face and threads.
4. immersed the batt again into the iso and swished and swished.
5. blew vigorously on the area in question.
6. set the thread end back in the iso and let it sit for 10 minutes.
7. blew like crazy on the area until no more droplets of iso flew off.
8. let it dry for 10 minutes
VoiLa! The draw is like new!!!! Works like a charm! Saved $12.50
Am I Goooooood, or what?