$11.99

Battery Hydrometer Tester

Availability: Out of stock

Might Max Battery Hydrometers are designed to detect a battery's state of charge by sampling the electrolyte from each cell. The hydrometer contains a floating indicator that represents the density of the electrolyte – the more dense the electrolyte the higher the battery's state of charge.

Mighty Max Battery Hydrometer

– Thick wall plastic body resists breakage

– Direct dial scale features oversize markings

– Immediately and accurately tests battery life whether the battery is hot or cold

– Works on all 6-12-24 volt systems

– Includes a Step-by-step instructions on body

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Excellent
Mighty Max Battery
Based on 3141 reviews
This is the ATV battery I purchased for my Yamaha Big Bear 350. I have the same battery in my other ATV, which has lasted far longer than any other brand I've purchased.
Awesome battery, great price!!!
Mightymax battery MM-26
For Generator
Just ordered off Amazon. Arrived quickly and already installed. So far so great. This battery was the most popular/most ordered of its type on Amazon.
Great battery! Arrived safe and sound!
Excellent batteries
I will add more details later, we have used these batteries before and they have always worked well for us. This is during the installation.
Works great! I installed it to my daughter’s car and it immediately turned on.
Arrived the next day . Super fast
MightyMax ML9-12 saved my CyberPower Backup UPS that went bad and I was able to upgraded to 9 AH from 7 AH.