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Your cart is empty.The E-Z Red hydrometer battery tester is made to stand up to tough treatment in service stations and garages. It's designed so that both customer and technician can see the state of the battery acid. This battery tester is economical; your first cost is your only cost. There are no replacement parts, and it has rugged construction and unbeatable quality. There are no difficult float reading to be observed and no temperature tables required.
kiki
2025-09-02 20:28:01
I use this to check SG off a forklift battery that I'm using in my off-grid solar system.It seems to be working and SG tracks voltage as expected. It's easy to use and does the job. I didn't know how accurate it is as I didn't have anything to compare it to.I have a couple of criticisms, I wish it had numbers marked between fair and good so I don't have to estimate, and I see small cracking around the edges which I know can come from the method used to weld the 2 halves together or if solvent is used to clean it in the manufacturing process, but to be fair, I have also left this under the metal cover of my battery outside, so it has been exposed to the elements and temperature swings below freezing. So far no leaks but even if the long term durability isn't there, it's cheap enough to just buy another one.
Beverly Ellington
2025-08-15 18:44:05
This EZred battery hydrometer is well made and easy to use. It does not leak as some negative reviewers stated and if used properly provides accurate specific gravity, and thus level of charge, readings for liquid-filled lead-acid batteries. If this product doesn't work for you, then you most likely have no business touching a battery in the first place. If however, you somehow received a broken or defective product, give the supplier a negative review and not the product.
MIKE B.
2025-08-07 11:56:28
Works fine, not exactly how it temperature compensates but says it does?
Bruce D. Terry
2025-07-03 14:33:06
Good product and good price.
A Long-time Prime Person
2025-06-30 10:26:51
I am not one to get excited about hydrometers but this is a very nice one and is easy to read and use. Hold it level to get repeated accurate measurements but you just need to tell if it makes it into the 'Good' section. I also have an old K-Mart floating-ball type which has 4 different colored balls that all float to the top if the cell is OK. It checks the specific gravity of the charged liquid-acid only; it will not tell you if a cell is shorted, nor can it stress-test the battery. I recommend adding only distilled-water, yearly, up to the lower part of the hole, leaving 1/2" to 1" below the top (be sure the metal plates are covered well), trickle-charge at no more than 2 amps with a charge that tapers-off as it reaches full charge then maintains it, then check the specific gravity of each cell. If your battery is old, or has any problems, get it tested free at your auto shop or a vehicle battery place. If there is any question, replace it, before you get stranded. I had a battery go bad in the parking lot of a Costco, luckily; it was 12 years old and suddenly died. If you use an additive, 'Battery Equaliser' is the only one mentioned that seems to really help, but when a battery is not working well, replace it. Stranded is miserable and costly. Do not expect it to work beyond its stated month. Be pro-active with this important car-starter that can go bad in summer heat and winter cold. Ever been stranded with a dead cell phone battery? Not good. This is for checking a youthful battery yearly. I just had an 84 month battery go bad at 30 months and it was replaced for free. This helped me get it replaced. Hope this helps you.
Bryant Gilbert
2025-06-27 10:24:44
This was great to check the cells in my battery
Carlos
2025-05-31 18:33:39
Genuine
Kenneth Lewis
2025-05-14 10:18:20
Worked good for me
Terry
2025-04-07 10:58:07
works well, compact size, good quality, accurate compared with bulb type hydrometer. Plastic construction won't break in the tool bag.
ARKANIC PRIVATE LIMITED
2025-04-06 10:30:14
Very useful product. Thanks !!
Paul D
2025-02-04 18:16:34
I initially wrote this:'Easy to use but the results are not consistent. If I take three readings from the same cell they will all be different.'BUT MY ENGINEER TELLS ME THAT IF YOU TAKE MULTIPLE READINGS QUICKLY FROM THE SAME CELL YOU GET DIFFERENT RESULTS. SO MAYBE IT IS OKAY.
David R Hopton
2025-01-27 18:14:04
Unlike a lot of other battery acid gauges, this is the easiest to read with its unique dial.
Sheo J.
2025-01-01 11:37:02
It’s costly but more accurate than any generic hydrometer
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