Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
The OEMTOOLS Professional Battery Hydrometer uses specific gravity and the number of floating discs to show state of battery charge. This large 16.25-inch professional disc-type tester is accurate down to -40 degrees Fahrenheit, and the battery specific gravity tester provides accurate state of charge levels at all temperatures. Our hydrometer for battery testing prints the specific gravity levels on the tough, see-through body of the battery tester automotive tool. The large floating discs in these car battery testers are easy to read, and each colored disc is designed to float at a different specific gravity, floating more as specific gravity increases. This battery hydrometer tester quickly and easily draws liquid using a one-piece rubber bulb and neoprene tip. The large, comfortable bulb on these battery testers for cars draws liquid with just one squeeze, providing accurate results in seconds. The flexible neoprene tip on our battery gravity tester makes it easier to access hard-to-reach battery cells. This car battery hydrometer features professional-grade construction and glass housing for long-lasting strength and durability.
This hydrometer tester from OEM Tools has been great for monitoring my batteries. The floating disc is accurate, and it fits perfectly in my toolbox. Highly useful for anyone maintaining multiple batteries.
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Carlos Martinez
Reliable and Easy to Use
I bought the OEM Tools Battery Hydrometer Tester to check my car's battery health. The 16-25 inch floating disc works precisely, and the readings are simple to interpret. It made my maintenance routine much easier!
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Sarah Lee
Decent Tester but Slightly Confusing
The hydrometer works fine for checking specific gravity, but I found the instructions a bit unclear. Once I figured it out, it performed accurately. It's a good tool, just takes a minute to get the hang of it.
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Anita Gupta
Great Value for Money!
I’m really happy with my purchase of the OEM Tools Battery Hydrometer. It’s easy to read and gives quick results. Perfect for regular battery maintenance without breaking the bank. Definitely recommend it!
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Peter O'Neil
Inaccurate Readings at Times
I wanted to love this hydrometer, but I've had a couple of instances where the readings seemed off. Maybe it's user error, but I expected better accuracy. Still, it’s convenient to have around.
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
