Isidor Buchmann takes a look at some new ideas for estimating battery reserve energy for the next generation of automobiles.
AC conductance testing was introduced in 1992 as a new way of measuring the cold cranking amps (CCA) of a car battery. This non-invasive method was hailed as a major breakthrough and, to a large degree, eliminates load testing to measure battery performance. The test only takes a few seconds; the readings are displayed in digital numbers and a message spells out the condition of the battery. There are no sparks at the battery terminals and the instrument . . .