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BG Battery Service

Service Interval: Every 2 years or at Battery replacement


Battery corrosion build up on the terminals can seem relatively insignificant when compared to the host of problems modern vehicles can experience. Ever increasing complexity in engine computer control systems, safety features and emission controls can make it easy to overlook that little patch of white residue on your battery’s connections. However, for all its simplicity corrosion build up can be costly in many ways and lead to secondary, and even more costly, problems.

Battery corrosion is caused by the material in the battery terminals and corresponding cable ends reacting with Nitrogen gas emitted naturally by the electrolyte in the battery. What happens as the corrosion begins to form and erodes material from the terminal connections is a buildup of non conductive material. This non conductive corrosion will continue to accumulate and will break the connection between the battery and the battery cable.

When the connection at the battery is broken, as the driver attempts to start the vehicle, all electrical systems will appear dead. There will be no cranking or turning over sound. It will appear as if the battery has failed. The appearance of a failed battery can lead to many unnecessary and costly actions.

The owner may attempt to jump start the vehicle. In almost all cases this will be ineffectual as the jumper cables will be placed over the battery cables and the circuit will remain broken. Often at the point of a failed jump start the owner will conclude the battery has failed and will purchase a new battery and in many cases it will appear to correct the problem as some corrosion will likely be dislodged during the removal and re installation of the cables during battery replacement. The problem will persist and very soon the corrosion will accumulate enough to again break the connection and create a non cranking condition.

Once corrosion begins it will spread to any suitable material it is in contact with. Battery corrosion can travel up a battery cable inside the insulation and continue to erode the cable unseen. A perfectly normal looking battery cable can be split open to reveal several feet of powdery white residue where copper wire should be. Additionally some vehicles have power distribution blocks located directly off the battery that are much more susceptible to corrosion damage than the heavier battery cables. Any of these secondary repairs are almost sure to be much more expensive and time consuming to repair than even an unnecessary battery replacement or towing bill.

Given the progressively problematic nature of corrosion in a vehicle’s electrical system, do yourself a favor and don’t let it build up


A battery cleaner and leak detector is applied after a thorough cleaning and inspection. Anti-corrosion BG Battery Terminal Protectors are installed and the battery posts, terminals and case are sealed.

Stop by and have your local automotive professionals at A & E perform a courtesy battery check to see how your battery and terminals are doing!