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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Originally Posted by rehirsch8
My father swears by them. We have them hooked up to both a C5 and C6Z. Seems to work with standard lead acid and Optima's just fine.
I have a VDC 12248 that I use on my Optima when I don't drive my car for several days or maybe week or so, just in case. Easy to use and doing a fine job.
I also got one of their on-board battery desulfators mounted on top of the battery. It de-sulphates when driving and draws no current when the car is off.