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Day: November 20, 2016

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How to check a car battery with only one tool, a hydrometer

November 20, 2016

We already have an article on how to check a car battery using a single tool, a voltmeter. There is alto another way to check a car battery condition with only one tool, a hydrometer. What is a hydrometer   A hydrometer is simple device that tells the specific weight (density) of fluid. It can […]

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