Battery Hydrometer – 8-Inch Electrolyte Density Tester For Car Battery Repair & Maintenance
Battery Hydrometer – 8-Inch Electrolyte Density Tester For Car Battery Repair & Maintenance
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Battery Hydrometer – 8-Inch Electrolyte Density Tester For Car Battery Repair & Maintenance

4.7 stars out of 31 reviews
(4.7)|
146 ratings

About this item

Wondering if your car battery’s electrolyte is still good? This simple hydrometer lets you check. It’s a glass tube with a rubber bulb, about 8 inches (330mm) long. You suck a sample of battery acid into it, and the float inside shows the density on a scale from 1.10 to 1.30. This tells you the state of charge and health of the battery. Essential for maintaining wet-cell batteries, especially in older cars, motorcycles, or equipment. Lightweight, easy to use, and a basic tool for any DIY mechanic or battery shop. Just be careful – battery acid is corrosive! A must-have for proper battery care.

$ 9
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4.7 out of 5 stars
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