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#Analog 12v battery meter professional#This is why tool companies and professional technicians use what’s called a “battery tester” to determine if a battery is good. There are two different types of battery testers, and both use more in-depth tests to make sure your battery is actually capable of running your car properly. That is because the voltmeter is not putting the battery under any stress or a “load.” It also isn’t able to test the actual amperage available to your car when it is put under load. That may be a decent start, but a voltmeter test won’t always get it right. Or more simply put, if the battery would hold between 12.4-8 after being charged it was good. The rule of thumb used to be 12.4-6 volts with a vehicle not running meant that the battery is good. ![]() I used to think that to test a 12v automotive battery all I needed to do was hook up my voltmeter and check for good voltage. Don’t worry they don’t break the bank, and I will cover the top battery testers of 2018 for all different budgets. Now, you need a battery tester in order to test batteries effectively. Modern cars rely more and more on a strong battery with the correct cold cranking amps available at all times. In 2018, gone are the days where a voltmeter reading of a battery was enough to tell if it was good or not. Top Battery Testers & Why They’re Awesome:
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