I wouldn't want to try to measure the CCA of your battery with a multimeter, the test leads are just not man enough for that sort of current... and the meter probably won't have that sort of range , get an amp-clamp. Make sure it's the active sort for DC , cheap non-active ones tend to be AC only (just a current transformer)Marty wrote:gain - if your measuring the CCA of the battery - select a suitable scale.
Never forget seeing a supposed electronics engineer connect an AVO 8 (expensive at the time) across his car battery set to the 10 amp range , I don't think we ever did find the remains of the cut-out switch !!!!