$12.99

Battery Hydrometer – Acid Tester, Electrolyte Density Checker

Availability: In stock

The Mighty Max Battery Hydrometer professionally gives accurate indications on battery charge status and battery condition.

The Mighty Max Battery tester is designed to test the concentration of the battery acid in non-sealed batteries.

Mighty Max Hydrometer Tester Features

  • Professional quality for highest accuracy
  • Precision graduated specific gravity float
  • Perform Tests of the battery in seconds
  • Easy to read, color coded hydrometer
  • Precise readings for status of battery cells
  • Accurately Tests battery fluid condition

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Excellent
Mighty Max Battery
Based on 4114 reviews
Fired right up and affordable
Works great and fast shipping
Great Product Supplier

12V 9Ah SLA battery for my solar backup and USB charging
I bought two 12V 7Ah F2 terminal Mighty Max batteries to replace aged APCRBC160. After installed them in my APC UPS, i run apctest to reset battery date and tested for 15 minutes with 15% load and run apcaccess every 30s. The BCHARGE from 100% to 60% and TIMELEFT from 40 minutes to 30 minutes, which is perfectly expected. Hopefully they'll last 3 more years.
Perfect replacement for the battery in the LiftMaster garage door opener.
Great little battery. Perfect fit for Cub Cadet XT1 series. Came fast from Amazon fully charged. Started my mower on first crank.
Very quick service from Walmart. Have not installed battery yet, but it looks to be exactly what it says mighty max.
I took it out of the box put it in the motorcycle and haven’t had a problem yet
Installed and fired right up!
came as expected 4/1/26 by Amazon and works perfect