Battery Basics

Hydrometer Battery Tester: What is it and a Guide on How to Use It

What is a Hydrometer Battery Tester? A hydrometer battery tester is a tool used to measure the specific gravity of the electrolyte solution inside a battery. The specific gravity is a measurement of the density or weight of the electrolyte solution. By measuring the specific gravity, a hydrometer battery tester can determine the state of […]

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