2009年9月23日 · I got my order back from J.C. Whitney for the VX-6 battery additive. I had to take some of the battery sulfuric acid out to make room for the VX-6. Right away I noticed that my lights were brighter at night. Also, my car is cranking up faster than it was before. The charging voltage went from 13.8 to 14.3 volts after adding the VX-6.