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Resources - FAQs - Detail


What is Voltage Drop testing and why is it important?

Voltage drop testing is extremely important. This is done by measuring voltage, which is essentially electrical pressure, at the battery and at the system component being tested (such as the alternator or starter) while under a load. The difference between the two readings is the amount of voltage drop. Larger differences can indicate problems associated with the cables and connections, and not necessarily the system components themselves. Voltage Drop testing can be accomplished with our carbon pile testers, but can now be performed automatically by using AutoMeter's patented automated voltage drop program found in our BCT-200J, BVA-350, and BVA-2100 testers.