Battery Hydrometer 1.10–1.30 Electrolyte Density Tester
Battery Hydrometer 1.10–1.30 Electrolyte Density Tester
Eelhoe Battery Hydrometer – Electrolyte Density Tester for Lead-Acid Batteries
Keep your lead-acid batteries performing at their best with the Eelhoe Battery Hydrometer. This precision electrolyte density tester covers a 1.100–1.300 specific gravity range and features a color-coded scale so you can instantly assess battery health — no math, no guesswork. Whether you're maintaining automotive batteries, forklifts, golf carts, or solar storage systems, this compact, acid-resistant tool delivers fast and reliable readings every time.
Made in Mainland China.
Key Features
- High-Precision Borosilicate Glass Float: Constructed from high-purity borosilicate glass that fully resists sulfuric acid electrolyte corrosion. Stable physical properties prevent measurement deviation, so you always get accurate electrolyte density readings.
- Durable Acid-Resistant Suction Bulb: Made from high-density acid-proof rubber with excellent sealing performance and a comfortable elastic grip. Draws and releases electrolyte effortlessly without cracking or aging under prolonged exposure to corrosive liquids.
- Intuitive 3-Color Scale: Wear-resistant, waterproof ink printing directly on the transparent glass tube. Red, green, and yellow zones cover the full 1.100–1.300 range, letting you instantly identify whether your battery is in good, fair, or low-charge condition at a glance.
- Leak-Proof Sealed Connection: High-precision fitting process joins the glass tube and rubber bulb with zero gaps. This prevents corrosive electrolyte from leaking during use, protecting you from chemical contact and ensuring safe operation.
- Portable & Impact-Resistant Design: Thickened glass body resists light knocks and bumps. The lightweight rubber bulb keeps the overall package compact and easy to carry — ideal for workshops, roadside diagnostics, and mobile repair situations.
Specifications
| Category | Battery Hydrometer / Electrolyte Density Tester |
| Measuring Range | 1.100 – 1.300 Specific Gravity |
| Material | Borosilicate Glass, Acid-Resistant Rubber |
| Applications | Lead-acid battery maintenance, automotive repair, forklift batteries, golf cart batteries, solar energy storage |
| Package Contents | 1 × Battery Hydrometer Set |
| Batteries Included | No |
Who Is This For?
This hydrometer is a must-have for automotive technicians, DIY mechanics, solar system installers, and anyone who regularly services flooded lead-acid batteries. Its portable, no-maintenance design means you can take it wherever the job demands.
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Frequently Asked Questions
Q: What type of batteries is this battery hydrometer compatible with?
A: This electrolyte density tester is designed specifically for flooded lead-acid batteries, including automotive car batteries, motorcycle batteries, forklift batteries, golf cart batteries, and solar energy storage batteries. It is not suitable for sealed AGM, gel, or lithium-ion batteries.
Q: How do I read the color-coded scale on this hydrometer?
A: Simply draw a small sample of electrolyte from the battery cell into the glass tube using the suction bulb, then read where the float rests on the color-coded scale. The green zone indicates a fully or well-charged battery, the yellow zone indicates a partial charge, and the red zone signals a low-charge or failing battery. No additional calculations are required.
Q: Is the glass tube durable enough for regular workshop use?
A: Yes. The float and tube are made from high-purity borosilicate glass, which offers superior resistance to sulfuric acid corrosion and better impact tolerance than standard glass. The thickened tube body is designed to withstand the light knocks and bumps typical of a busy workshop or field repair environment.
Q: How do I clean and store the hydrometer after use?
A: After each use, rinse the inside of the glass tube and the suction nozzle thoroughly with clean water to remove any residual electrolyte. Allow it to dry completely before storing in a safe, dry location away from direct sunlight. This simple routine helps extend the product's service life significantly.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.