While using a digital multimeter to diagnose electrical problems on customers’ equipment, I frequently hear the comment, “I’ve got one of those multimeter things, but I never learned how to use it.” ...

While manufacturers are keen to show how they can shave a few grams off their new model’s weight, they could easily shave even more if they swapped to a more expensive lithium battery. You need to ...

How do I test for battery drain when my bike’s not in use? I think my battery’s causing this. You need an ammeter or multimeter set on amps. Take the negative lead off the battery and put the positive ...