To refurbish an old car battery, wash the outside, remove the cell covers, refill the cells with distilled water, and charge the battery. The process should take no more than one hour. Working with car batteries can be dangerous, so use caution when performing this task.Know More
Using a mixture of water and baking soda, clean off the outside of the battery. Wear protective gloves and eyewear to prevent contact with any loose acid.
Most batteries have two small plastic caps that cover the six cell holes. Remove these caps, and place them aside. Carefully remove any dirt or debris from the areas that were previously covered by the caps. It is important that no dirt falls into the cells.
Using distilled water, refill all of the cells up to about 1 inch from the top. Do not use tap water, as it contains minerals that can ruin the inside of your battery through corrosion. Once all of the cells are filled, replace the caps.
Cycle the battery through multiple charges. On a conventional charger, it may take a number of cycles to fully restore the battery.
According to Consumer Reports magazine, car battery brand is not necessarily an indicator of whether a battery is harmful to particular vehicles. Motorists are advised to check their owner's manual for the recommended size battery and refer to ratings for one suiting their needs and budget -regardless of brand.Full Answer >
Signs of an overcharged car battery include loss of water, battery failure or a hydrogen explosion. In vehicles equipped with an onboard computer, the overcharging battery causes faulty error codes. The most common cause of overcharging is a faulty voltage regulator. If the batteries fail prematurely, check the regulator or have an expert check it.Full Answer >
Car batteries cannot recharge themselves without first receiving power from an outside source. A common method of providing the initial power to start a dead battery is through connecting the dead battery to a live one in another vehicle with jumper cables.Full Answer >
To change a car battery, loosen the nuts that secure the cables to the terminals, and then lift the battery out of the car to exchange it for a new one. Wear gloves and safety glasses to protect yourself from acid leaks.Full Answer >