Wednesday, Dec 20, 2017 at 13:41
Copied from
Battery Boys website (US) .........
Corrosion and its affects on
battery performance
The recharging process of batteries produces gassing as a result of the
breakdown of oxygen and hydrogen gas. This is the primary factor that causes corrosion on your
battery cables, terminals, and other
battery related metal parts. During charging, the gas that escapes through the vent caps, bringing with it small particles of sulfuric acid which are heavier than air, drop and form corrosion on your
battery cables, terminals,
battery hold down rods, nuts and bolts. This acid settles on the top of your batteries and eventually makes its way down the sides of the batteries to your golf cart’s aluminum or steel
battery tray.
You will see a very corrosive white powdery substance on your
battery terminals, cables and other metal parts in areas near your batteries. Corrosion probably will also be on your
battery tray and on the garage floor. This corrosion can even travel inside your
battery cables causing high resistance and improper charging. The corrosion that forms on your
battery tray will eventually deteriorate the aluminum or steel
battery supports and could cause your batteries to drop through the bottom of your cart. It is common to see the
battery hold down rods, nuts and washers completely eaten away if corrosion is not managed properly and in a timely fashion.
How does this happen? There are several reasons. If the batteries are over filled or filled before they are charged, the electrolyte expansion forces some of the liquid out of the vent caps or past the vent cap gaskets on to the top of the batteries. Some batteries have vent caps that leak due to poor design. Trojan
Battery Company has a proven and patented vent cap designed with a manifold that captures the condensation of the gas and then drains the liquid down the center of the cap back into the
battery cells which practically eliminates all leakage and helps reduce water loss.
As batteries age their voltage drops and require longer charging. During charging, these batteries get warmer and gas more, forcing the gas out of the cell vents or past the vent gaskets. In some cases where certain poorly designed single point
battery fill systems have been installed, the fill system’s gaskets become distorted causing leakage or the watering system’s valves have failed to work properly causing leakage, under filling or over filling.
AnswerID:
615617