Service Charges May Vary Based On Services Performed

EMERGENCY ROADSIDE ASSISTANCE AVAILABLE FROM 6:00 AM-12:00 AM

Locksmith License #: B26277801

Locksmith License #: B26277801

Service Charges May Vary Based On Services Performed

Same Day Service - In As Little as One Hour

Battery, Starter, and Alternator Testing

* Discounts only applied when scheduled online *

FREE Battery Testing When You Need it Most

Have you ever tried to start your car, but it didn’t start? It’s inconvenient, stressful, and it can leave you stranded. Your car’s battery could potentially be the culprit for why your car isn’t starting, but there’s only one true way to know: Battery testing. At 24 Hour Car Unlocking, we offer FREE battery testing for all vehicle makes and models. Your battery is an important component of how your car starts, but it can be difficult to know if that’s the real issue, as it could be your starter or alternator. With our free battery testing service, you will know for sure what the issue is, so you can better plan for a solution. Contact us and we will send one of our trusted experts directly to you to test your battery and determine why your vehicle isn’t starting.

*Free Basic Testing. Limitations and exclusions apply. Comes Standard with our $35.00 service fee.

Starter Testing Replacement and Battery Testing

Rated 5 out of 5

Edward did such a great job!! We were stranded late at night. In a very stressful situation, he provided excellent customer service. He went above and beyond what was expected. THANK YOU!

Susana Chavez

Happy Customer

Rated 5 out of 5

Jordan provided quick and professional service to resolve my auto lockout. Their response time and efficiency makes my AAA coverage completely useless for local emergencies. I highly recommend.

Lateefah Parker

Happy Customer

Rated 5 out of 5

The service was phenomenal. They responding quickly to my online request and I was in contact with the technician within 2 minutes after hanging up with the dispatch. My technician, Matthew, was extremely helpful and knowledgeable.

Will James

Happy Customer

Battery, Starter, and Alternator Testing for All Vehicle Types

alternator testing

#1 Rated Alternator Testing Services

At 24 Hour Car Unlocking we offer top-rated alternator testing services for any make or model of vehicle. Our services help to determine your alternator’s performance and check your vehicle’s electrical system. Certified technicians will come straight to you with their diagnostic tools and test your alternator’s condition so you can find the best solution for any problems or replacements.

Why Do Alternators Fail?

Alternators often can last for between 40,000 and 100,000 miles depending on the vehicle and the wear and tar. However, they can fail prior to that mileage limit due to extra wear and tear, environmental conditions, and even debris. Understanding why alternators fail can help you be prepared in case it does happen.

Alternator Bearing Damage

Alternators have a bearing, which can be worn out due to heat, friction, or stress and it can negatively impact the alternator’s function. This can make it difficult for the entire car to turn the alternator and prevent battery recharge, stress the alternator more, and potentially cause the belt to snap. This can lead to a variety of other issues like overheating, loss of power steering, and loss of air conditioning.

Fluid Leaks

Fluid leaks can lead to issues with your alternator as it can damage the internal components. Oil or power steering leaks can cause the alternator’s electrical and mechanical components to fail, which will lead to inadequate power, causing the car to not start.

Incorrect Use of Jumper Cables

Many people don’t know this, but if you don't use jumper cables correctly, this can cause alternator failure. For example, reversing the polarity can damage the alternator, battery, and even the engine control unit. If you’re unsure how to jump start your car, contact us and we can come to you with our jump start services!

Driving Habits

Believe it or not, your driving habits can heavily impact your alternator. Alternators often are at their best function above 1650 RPM, but some vehicle additions can cause the car to idle at a higher RPM, causing failure.

Why You Need Free Battery Testing

At 24 Hour Car Unlocking, we offer free battery testing to check the battery’s state of charge and state of health. Checking both of these allows us to determine if the battery is truly the reason why your vehicle won’t start. We will send one of our roadside techs to your location to test your battery and assess its current condition, so you can decide whether you need a new battery, a jump-start, or another issue.   

Cranking but not turning over? Battery not the issue? You could be having issues with your starter or alternator. Our experienced roadside techs can run diagnostic tests on your starter and alternator to pinpoint the root cause. If you’re not sure what the problem is, but want to find a solution, call 24 Hour Car Unlocking to take advantage of our emergency roadside assistance services and get a diagnostic test done!

Signs That Your Car Battery May Be Weak

Vehicle cranking slowly or seems like it does not want to crank
Dim lights or internal electronics when trying to start
Limited power or no power to your accessories
Clicking sounds when trying to start the ignition
Sulfur smells or a bulging battery under the hood
Corrosion on the battery and/or terminals

10,000+

Alternators & Electric Charging Components Tested

Quick Starter Testing and Replacement Near You

Experiencing issues with your car turning on? Take advantage of our starter testing services at 24 Hour Car Unlocking! Our experienced technicians can come straight to you to test your starter and determine its performance capability. With affordable solutions, prompt service, and exceptional quality we are here for all your starter testing needs. If you’re having car issues or just want to see how your starter’s performing, give us a call at 24 Hour Car Unlocking!

Signs You May Have a Bad Starter

If your car isn’t starting, there can be a few different reasons as to why that happens. However, there are specific signs you can watch out for that may indicate a bad starter. Your starter fails for a variety of reasons, including normal wear and tear if you’ve been driving your car for a while. Here is a look at some common signs that your starter may be bad:

Check the engine light or the battery light is on
The car has trouble cranking or doesn't crank at all
Starter spins, but the engine doesn’t turn
Grinding noises when driving the vehicle
Headlights and electronic lights displays fluctuate in brightness or are dimme

free car battery alternator starter testing

Free Battery, Alternator, & Starter Testing with 24 Hour Car Unlocking

At 24 Hour Car Unlocking, we offer a variety of free services to our customers, including battery, alternator, and starter testing. We know how inconvenient it can be to have car trouble and not know the root cause of it. Our testing services help determine the issue so you are better equipped to find a solution to the issue. Contact us today if you are experiencing car trouble and need a diagnostic test to figure out what the true issue is! We are committed to getting you back on the road in no time!