How To Read A 12v Battery Charger. Just follow the simple steps given below. Hold the red test probe against the chargers positive contact point.

How big is the battery. Specific gravity is read with a hydrometer. Generally the positive terminal is a little larger than the.
Plug the charger into the mains and switch on.
Check the terminals of the battery for polarity. As we pointed out before the dial allows you to know the charge of the voltage of your battery. The voltage reading of 124 volts will indicate that the battery is only 75 percent charged. How big is the battery.
