Cars & Vehicles Hybrid Vehicles

Symptoms of a Sulphated Car Battery

    Physical Clues

    • Pop the hood. Lead sulfate, a non-conductive compound, is the main culprit in car battery sulfation which crystallizes around the battery's electrode plates and reduces the surface area necessary to produce an electro-chemical reaction. White or near translucent crystals formed around the battery's electrodes is a definite physical sign that sulfation is occurring or has occurred.

    Dimming Lights/Malfunctioning Electrical Equipment

    • A car battery that is sulfating will be unable to recharge while the vehicle is running (as it is intended to do). A vehicle operating several electronic devices may experience diminished functionality as the battery is drained of power and the on-board computer attempts to keep the vehicle running by using the remaining electrical charge to run more integral systems like the fuel pump. Headlights may also dim or not work at all if the battery is sulfating.

    Inability to Start

    • A battery that has enough lead sulfate crystals hardened around its electrode plates will be unable to start. The lead sulfate crystals will entirely block any electro-chemical reaction which may mean the battery will resist jump-starting and all recharging efforts until the crystals are removed or the battery is simply replaced. Once the battery is sulfated, even if it is recoverable, its maximum energy capacity will be greatly reduced and will require a replacement in the short term.



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