How to check Battery Fluid level

Discussion in 'Power - Site Power/Batteries/Generators/Solar' started by mpking, Mar 14, 2018.

  1. mpking

    mpking Active Member

    Jun 17, 2014
    Raynham, MA
    I've seen people from time to time say check the electrolyte level in the battery.

    I've had my battery for almost 2 years. I have no idea how to do that. I've found stuff online that says just look and see if you need to add distilled water.

    Here's a photo of my battery... Thoughts?
  2. crackerJack

    crackerJack Active Member

    Jan 6, 2014
    Scottsville, KY
    Not sure about yours. Some batteries do not require water. What is the make and model?
    My 6v US battery 2200xc batteries have easy access caps. Most auto parts stores will have a filler, which looks like a turkey baster.
  3. Raycfe

    Raycfe Waterford Ct.

    Oct 3, 2007
    Waterford, Ct
    The level is to the bottom edge of the "tunnel/tube" you are looking at. Just add enough to come up to the bottom of the tubes. The fiuld should aways cover the fins/plates of the battery. Don't overfill as it will make a mess in your battery box.
    jnc likes this.
  4. BikeNFish

    BikeNFish Well-Known Member

    Apr 24, 2017
    Maplewood, MN
    This video is a quick tutorial on battery maintenance:

  5. f5moab

    f5moab Retired from the Federal Government

    May 7, 2013
    Somewhere in Idaho
    Get one of these and check the specific gravity too....
    Called a Hydrometer....

    Last edited: Mar 14, 2018
  6. joet

    joet Well-Known Member

    Mar 16, 2011
    Never add water to a discharged battery. When you charge it, the electrolyte heats and expands. I have seen it overflow and run out. Always add water to a fully charged battery.

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