Search results

Check each battery by itself. One of your regulators is probably shot and sending out more than 14.4 volts which is what the max should be.

26 volts is what the yellow/green dividing line is supposed to indicate. 28.8 volts is what the little hash in the green section is supposed to be. No glow plugs on a warm engine not running with good batteries should be around 25.2 volts which will be just below the yellow/ green dividing...