Battery Vent Caps with Water Level Monitor for RV, Golf Carts, and Solar Systems

A 6-pack of 1/4-turn twist lock bayonet style caps for deep cycle batteries

  • The quick, simple, and safe way to maintain the water level of your flooded lead acid deep cycle batteries.
  • Easy to see water level indicators for each cell of your battery. 
  • Caps fit 1/4-turn twist lock bayonet style mount batteries.
  • These caps require 2 1/16" of clearance above the battery mounting surface.
  • Check out our other listings for more models.

    • How To Use the Ez Battery Check Water Level Monitor:

    Proper safety measures should be used.

        1. Ensure that the battery is fully charged.
        2. The battery’s electrolyte level should be at the manufacturer’s recommended level.  Add distilled water if necessary.  Do not over fill.
        3. Remove the original vent caps and the install the Ez Check Battery caps.
        4. Note the level of the red float indicators.
        5. The Ez Battery Check cap is now ready to be monitored. When the red float indicator drops, remove the cap and slowly add distilled water to the manufactures recommended level. Re-install the Ez Battery Check Cap and continue to monitor.

        Your batteries should be checked frequently to maintain the correct fluid levels