test a battery
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- January 22, 2013
How to Test a Battery for Drain Using a Voltmeter
When a battery unexpected loses its charge after being unused for a short period of time,
the culprit is often a malfunctioning electronic system that is attached to the battery. This situation is referred to as parasitic battery drain or parasitic load, and it most often occurs in vehicle batteries. Car and motorcycle batteries have dozens of electrical systems attached to them, and they may be drawing a charge off the battery when they are supposed to be shut off. To fix this problem, it is first necessary to determine whether parasitic battery drain is actually the problem, but this test requires the use of a voltmeter or a digital multimeter.What is a Voltmeter?
A voltmeter is a device that can be attached to an electrical circuit to test how many volts of electricity are moving through it. The meter consists of a base unit, a display, a positive test probe and a negative test probe. Older meters are purely analog and use moving-needle
