*In some vehicles, ignition may be required to be placed in accessory mode where electronic memory minder is present.īattery testing should be considered an integral part of any periodic vehicle maintenance routine and should be performed whether or not a starting problem has occurred. Due to the increased electrical demands on the battery, little warning is given before failure. #As extracted and interpreted by product manufacturer from the Battery Council International Service Manual, Chapter 2, Thirteenth Edition.
They can inspect and test your battery and provide you with professional advice and assistance. If you are unsure about the condition or state of charge of the battery, take it to your local Century battery reseller. It is important to check the battery completely before reconnecting to electrical devices. Should the voltage drop below 12.5V, recharge the battery. Check the state of charge or voltage regularly. If the State of Charge Indicator advises 'Replace Battery' it is important that the battery is replaced as the electrolyte levels may be below the plates which can lead to an internal explosion.įor batteries used in seasonal applications and stored long term, fully recharge the battery prior to storing. The vehicle may still start the engine although the indicator outlines to replace the battery. This gives you a snap shot of the battery's condition and whether the battery needs to be charged or replaced.
When servicing a sealed maintenance free (SMF) battery, check the State of Charge Indicator. Top up using distilled or demineralised water and never fill with sulphuric acid. If topping up is required, do not over fill as the fluid levels will rise when the battery is fully charged and may overflow. If you have a maintainable battery, it is important to check if the battery has sufficient electrolyte covering the battery plates. This usually indicates the battery has been overheated or has been overcharged. Inspect the battery case for obvious signs of physical damage or warpage. These should be clean, tight and free of corrosion.Īpply a thin coating of high temperature grease to posts and cable connections for added protection. Inspect the terminals, screws, clamps and cables for breakage, damage or loose connections. A dirty battery can discharge across the grime on top of the battery casing.
A charged Century battery will have a stabilised voltage above 12.5 volts and an SG reading above 1.240.Įnsure the battery top is clean, dry, free of dirt and grime. However, a more reliable way to check is with a voltmeter to determine the stabilised voltage or if the vent caps are removable a hydrometer to determine the specific gravity (SG) of the electrolyte. Most batteries have a State of Charge Indicator on top of the battery that will give you an on the spot diagnosis of the battery condition. Use the following as a guide when examining your battery:Ĭheck the battery's state of charge. A routine inspection at least once a month is recommended to maintain optimum performance. Regular testing and inspection will help to maximise battery life.
For tips on how to keep your battery in top condition, please follow the links below. Taking good care of your battery will help to extend its service life.