![]() Spray the terminals and connectors with a protectant.Īt this point, you can place an anti-corrosion washer over the battery post before returning the cable connectors to their proper place and tightening them down.Ĭleaning Battery Case and Tray From Battery Acid and Dirt To Avoid Energy Leaks.Wipe the corrosion and cleaner off with a dry cloth.Spray the posts and connectors with the battery cleaning spray and use a wire brush or scratch pad to remove the corrosion until the metal surfaces are shiny and bright.Remove the cable connectors from the battery terminal post, starting with the negative post first.Use the adjustable crescent wrench or hex set to loosen the nut on the cable connectors.How to Clean Battery Posts and Connectors: Battery post cleaning and protective spray.Adjustable crescent wrench or socket set. ![]() This is a regular maintenance item that you should do at least every one or two months to keep your battery in good working order. In some cases, it can also cause a short that can cause your battery to drain when it is not in use. When the battery terminals and cable connectors become corroded, it can interfere with electrical conductivity. Some batteries vent gases that can react with metal parts around batteries and cause corrosion. Here’s a video instruction using a simple multimeter:Ĭleaning the Battery Posts, Contacts, and Cable Connectors from Corrosion To Improve Conductivity How to Test and Find a Parasitic Battery Drain when your car is Off Keeping your battery charged to within this range will help preserve its life and make it more reliable. If you test the battery when the car is running, the multimeter should read 13.7 to 14.7 volts. Anything less than this means that your battery needs to be charged to make sure your car will start. When ready, disconnect the clips from the battery posts, starting with the negative one first.Ī fully charged car battery should read at least 12.6 volts.Connect the multimeter’s clips to the corresponding terminal posts of the battery, positive to positive and negative to negative.Turn the multimeter to the proper setting: amps, volts, or ohms.To check the charge level, you will need to purchase a multimeter. If the charge drops, you cannot expect the battery to start the vehicle when you need it. There is another reason to check the battery’s charge level: if the vehicle has not been started in the last one or two weeks. Therefore checking your battery’s voltage and charge level is important for this type of battery. ![]() If you treat an SLI battery this way, you will quickly decrease its lifespan. Deep-cycle batteries are designed to be discharged to lower levels than SLI batteries. The other type is a deep-cycle battery designed for the long-term operation of electronics and other items that place a continuous load on it. The first type is the starting-lighting-ignition battery (SLI), designed to deliver a short burst of power for starting the engine. Other factors, such as storing it in cold conditions, long-term storage, and using the wrong charger can also cause your battery to lose the ability to maintain charge.Īutomotive batteries fall into two general types. As your battery ages, its ability to store charge can drop. It is important to make sure that your battery has the proper voltage and charge level at all times. ![]() One thing everyone should have one hand is a multimeter.
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