Back to all

Wired! (Battery Cable Service)

July 18, 2021

Colder weather brings out the worst in a vehicle's battery.  On a very cold day, you may have experienced that your engine cranks slowly when starting.  But while it may be the battery itself, it may also be the parts that transfer the power to other the other electrical components, the battery cables.  After all, you have to have some way to get the current out of the battery and out to where it needs to go.

Battery cables have a couple of enemies: corrosion and age.  You may have looked under the hood and noticed a light-colored powder or crust around the terminals.  That's what happens when acids corrode the ends of the battery terminals.  Corrosion inhibits the connection and may reduce the amount of power getting to the electrical accessories to the point where they are not working correctly, if at all.

Here are some symptoms of problems with your battery cables. You might notice a clicking sound when you turn the key, some of your vehicle's electrical parts (like the sound system or the horn) don't work or, in some cases, the vehicle won't start at all.

When you take your vehicle to a repair facility, the technician will use instruments to check voltages to see how much current is getting to what location. That includes a starter draw test during which the battery's voltage is checked when the starter is cranked.  The technician will also visually inspect the cables and the charging system. To make sure the alternator is putting out the right voltage, the technician will measure that as well. 

If the problem is found to be the battery cable assembly, the entire set may have to be replaced. Sometimes they can be repaired. 

During the colder months, it's vital that your vehicle has the proper power going to its electrical components.  Having a vehicle that won't start or run smoothly is not something you want to battle with when you're already up against challenging weather.  Keep your electrons flowing… and your vehicle moving.


Tuffy Tire & Auto Service Westerville
7128 State Route 3
Westerville, Ohio 43082
614-818-9036
http://www.tuffywesterville.com

More articles from Tuffy Westerville

It Wears on You (Tire Rotation)

May 26, 2025

If someone told you there was a fairly inexpensive way to improve your vehicle's handling, fuel economy and extend the life of your tires, you'd probably ask, "What do I have to do?" The answer is to rotate your tires. But you have to do it regularly. A lot of drivers think skipping tire rotatio... More

Read a Good Tire Lately? (Tire Wear)

May 18, 2025

There's lots of good information to read in books and online. You might not know that you can also "read" your tires and learn a lot about what shape they're in and if they are in need of attention. It's important to know how your tires are doing because a tire failure can be very dangerous to y... More

Low Power Mystery (Ignition Coil Service)

May 11, 2025

It's no fun when your vehicle just doesn't run the way it used to. You may notice (especially in cold weather) the engine won't start easily or when it does start, it doesn't run smoothly. It may not have much power at all. You also may have had to stop at the gas station more often, a sign you... More