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.
If a car dies while in operation and the interior battery light turns on, this is typically a result of the battery dying completely. In other cases, the battery light may turn on as an indicator that it is not recharging like it normally does.Full Answer >
To test a car battery with a multimeter, set the multimeter to measure DC voltage, and set the dial to 20 volts; with the car off, disconnect the battery cables and attach the multimeter leads to the positive and negative posts on the battery. Wait for the reading.Full Answer >
The average car battery lasts from three to five years, but many factors effect the lifespan of a car battery. Driving habits, climate and operating conditions effect a battery's overall durability and vary with use.Full Answer >
After locating the old battery on the right-hand side of the trunk under the carpet and carefully removing the negative and positive cables, unfasten the bolts holding the battery in place and replace with the new battery, being sure to reattach all bolts and cables in the appropriate places. While switching a battery is relatively quick and easy, it can be extremely dangerous if caution is not exercised when detaching or attaching the cables to the positive and negative terminals of the battery.Full Answer >