

Corrosion can damage your battery tester or give improper readings. First, inspect your battery to make sure it is safe to connect the tester. This allows you to see how your battery and alternator work over time and potentially catch a problem before complete failure.īefore using a tester, be sure to read the owner's manual carefully. However, premium testers record test results for you to compare the performance of your alternator from one day to the next. These efficient designs are easy to ready, even in low-light settings. Some testers have a simple display that simply shows the voltage for 6-volt and 12-volt batteries. When searching for battery testers near me, shop for testers that use durable steel, hard plastic or premium rubber components. Just like any tools for working on your vehicle, you need an alternator and battery tester that is rugged and ready for use in the shop or on the road. Whether you're on the side of the road or tuning up your car in the garage, use the best alternator testers for cars and trucks to keep track of your battery and know when to replace it or repair your alternator without taking it into your local mechanic.

If your battery is dead or struggling to hold a charge, it can be difficult to determine the source of the issue.
