Dr Mike McDonagh relates the case of how a simple maintenance procedure became a serious production quality issue when process parameters were changed by the use of replacement parts during maintenance.
Dear Dr Mike
My name is Jeremy, I am the technical manager of a medium-sized battery manufacturer, producing around one million industrial lead-acid batteries per year. We produce mostly AGM and GEL monoblocs, both six and 12 volts, with a small number of 2-volt flat plate cells. The capacities range from 7Ah to . . .