Battery Hydrometer 1.10–1.30 | Electrolyte Density Tester

Battery Hydrometer – Electrolyte Density Meter (1.10–1.30 Range)

Keep your lead-acid batteries performing at their best with this compact and easy-to-use Battery Hydrometer Density Meter. Designed for car, motorcycle, marine, and other lead-acid battery types, this tool lets you quickly draw a small sample of electrolyte fluid and read the specific gravity on a built-in float scale — giving you an instant snapshot of your battery's state of charge and overall health.

Whether you're a DIY mechanic, a fleet maintenance technician, or simply a car owner who wants to stay on top of battery condition, this hydrometer is an affordable and dependable addition to your toolkit. Made in Mainland China.

Key Features

• Fast & Accurate Readings: Measures electrolyte specific gravity with an accuracy of ±0.005 — results in seconds.
• Wide Measuring Range: Covers 1.10–1.30 specific gravity, suitable for standard flooded lead-acid batteries.
• Float-Style Design: The internal float rises to the correct level once sufficient electrolyte is drawn in — simply read the scale.
• Durable Plastic Construction: Lightweight and acid-resistant plastic body in classic black finish.
• Compact Size: 28 cm (11.02 inches) in length — easy to store in a toolbox or glove compartment.
• Simple to Use: No batteries required; no complicated setup. Squeeze the bulb, draw in electrolyte, and read the float.

Specifications

Package Contents

• 1× Battery Electrolyte Density Meter (Hydrometer)

Important Notes

• Ensure sufficient electrolyte fluid is present in the battery cell before testing — the float must be able to rise freely.
• Handle electrolyte (battery acid) with care. Use appropriate protective gloves and eyewear.
• Screen colors may vary slightly from actual product due to monitor calibration differences.
• Please allow a slight manual measurement tolerance of ±1–2 mm.

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Learn More

For guidance on safe automotive battery maintenance and handling battery acid, visit the OSHA Battery Charging Safety Guidelines.

Learn more: Pico Technology

Frequently Asked Questions

Q: What type of batteries can I test with this hydrometer density meter?

A: This hydrometer is designed for standard flooded lead-acid batteries, including car, truck, motorcycle, marine, and deep-cycle batteries. It measures the specific gravity of the electrolyte solution (sulfuric acid and water mixture) to indicate the battery's state of charge. It is not suitable for sealed AGM, gel, or lithium batteries.

Q: How do I use the battery hydrometer?

A: Remove the battery cell cap to access the electrolyte. Insert the hydrometer tip into the cell, squeeze and release the rubber bulb to draw in enough electrolyte for the float to rise freely. Read the specific gravity value at the float's waterline. A reading of around 1.265–1.285 typically indicates a fully charged cell, while readings below 1.200 may indicate a discharged or weakened cell.

Q: Is the hydrometer accurate enough for professional use?

A: Yes. With an accuracy of ±0.005 across the 1.10–1.30 measuring range, this hydrometer is suitable for both DIY home mechanics and professional automotive technicians who need a quick and reliable electrolyte density check without expensive equipment.

Q: Does it come with batteries or any accessories?

A: No batteries are required — this is a purely mechanical float-type instrument. The package includes one battery hydrometer density meter. No additional accessories are included.