Battery Testing Jerry Dobbs October 31, 2003

The article on QSI/Proto-Sound Batteries in our club news was very interesting, showing how to measure the voltage of the battery. A quicker and easier method that I use it to take a 12 volt lamp and touch it across he terminals of the battery, from the brightness of the lamp you can determine the state of charge of the battery. Some practice helps, compare it to a new battery.