usbattery_Fill-Line

Deep Cycle batteries are designed to be constantly charged and discharged to provide optimum power. The result from this constant “cycling” is that some of the electrolyte evaporates, and over time, the electrolyte levels in the battery drops.

To maintain battery performance and reliability, it’s very important to check the water levels in the battery on a monthly basis. To do this, wear eye protection and gloves before removing the vent caps on the batteries. Check with the battery manufacturer to see how to remove the vent caps, (they usually pull or twist off). Start with one cell at a time.

Get a small flashlight and look into the vent. You will see the cell plates in the electrolyte. The level of the electrolyte should be enough so that the cell plates are submerged. Some battery manufacturers recommend the water level be 1/4 inch below the fill well. That’s approximately enough to cover the battery plates, but not enough to touch the bottom of the vent. For more information on deep-cycle battery maintenance and tips on how to improve battery performance and life, visit www.usbattery.com

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