Skip the auto shop - Our mechanics make house calls

Q: Battery with white buildup

asked by on

I've noticed a pretty big buildup of white gunk on my car battery. The car always starts up fine at first turn. Is it affecting anything? Should I clean it off?

Yes, you’ll need to clean the connections off because it will eventually start to corrode the metal.

In order to do this, take your battery terminals off, clean it really well with a wire brush that you can get at auto parts stores. Once you clean them reconnect the connectors on tight. Then buy a can of battery terminal corrosion resistance spray which you can also get at auto part stores. It’s usually a red spray. Once you apply the spray corrosion won’t occur anymore because it will seal battery acid from getting on the metal and prevent that white buildup you saw. It’s good practice to do this. You don’t want a bunch of corrosion accumulating under the hood.

If you need help with this or run into any problems with your battery, contact a certified mechanic who can help you ensure that your battery and cables are maintained for proper operation.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How do I know if the battery cable has corrosion it?

The seriousness of corrosion on a terminal or connection is usually just determined by visual inspection. You can perform a voltage drop test (and in your circumstance will have to) to determine the ultimate "condition" of a circuit, whether you...

Q: It was recommended that I was to get a fuel injector cleaning. Would getting the product from the auto store and putting in it my gas tank do the trick.

Hi there. Any solution will help clean out the fuel system. I recommend getting Sea Foam and putting the whole bottle in the fuel tank and fueling up the tank. This solution will remove all water in the fuel, debris...

Q: Suffering a battery drain.

When there is an electrical draw that drains your car’s battery, it is known as a parasitic draw. A parasitic draw or drain is usually first noticed when the battery is discovered dead after the vehicle has been off with...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.