How do I Properly Store a Car Battery When Not in Use?

Since they are rechargeable, car batteries that are not being used can last a long time with proper storage. They do not require much care -- just a little attention.

Before Storing

Do not overcharge or fast-charge -- it's best to use a timer.

Fully charge the battery before you store it. Be sure the terminals are free of corrosion by cleaning with baking soda (clean the gunk off any other parts with water). Disconnect all electrical connections.

Storage

Store the battery in a cool, dry place. The cooler the better, as long as it does not fall below 32 degrees Fahrenheit (freezing) for any significant length of time. The surface you store it on is of no significance.

While Storing

Check on the battery every two months. Charge it if it falls below fully-charged. Clean any corrosion or gunk as needed. Fully charge before using.

References

• AutoBatteries.com: Batteries and Storage

Resources

• Power Stream: Battery Storage Recommendations