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🔋 Power Up Your Battery IQ — Never Get Caught Off Guard!
The Mighty Max Battery Hydrometer Tester is a compact, battery-powered device designed to accurately measure the specific gravity of battery acid in deep cycle and golf cart batteries. With its easy-to-read display and professional-grade precision, it helps prevent battery failures and extends battery life. Lightweight and portable, it’s a trusted tool favored by professionals and backed by a 1-year manufacturer warranty.






| ASIN | B00NCWAPEY |
| Best Sellers Rank | #76,571 in Automotive ( See Top 100 in Automotive ) #82 in Battery Testers |
| Brand | Mighty Max Battery |
| Brand Name | Mighty Max Battery |
| Color | Clear |
| Customer Reviews | 4.3 out of 5 stars 807 Reviews |
| Item Dimensions | 11.5 x 2 x 2 inches |
| Item Weight | 0.15 Pounds |
| Item dimensions L x W x H | 11.5 x 2 x 2 inches |
| Manufacturer | Mighty Max Battery |
| Measurement Type | Specific Gravity |
| Model | 10 |
| Part Number | HYDROSTK5 |
| Power Source | Battery Powered |
| Style | HYDROSTK5 |
| Style Name | HYDROSTK5 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 Year Manufacturers Warranty |
G**D
Works perfect.
This item fit my needs very well.
D**R
Customer
Tester worked fine. Battery tested good.
S**R
As advertised
As advertised
Z**B
Works well but I would prefer a longer tube for inserting into the battery
Works but would be better if it had a longer tube for inserting into the battery. My battery bank has large flooded lead acid batteries and a longer tube would make it easier to use.
F**Y
It works!
Inexpensive and it works. What else can I say?
J**E
Didn’t last
Stored it in a room at below 90degrees Fahrenheit after owning it for less than 6 months the plastic cylinder housing started to split at the seam.
K**N
Works.
This worked really really well. The first time I used it, but it is extremely fragile. You have to pee careful because I broke it. Just trying to clean it out, but it works. Excellent it did its job. You just have to be extremely delicate with it. I used it for my forklift battery.
R**D
Battery tester
Returned, not easy to use
Trustpilot
1 month ago
1 week ago