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How to Use a Car Battery Charger

Car Battery Charger

If you’re in a situation where your vehicle’s battery is dead, you can use a battery charger to give it a boost, so you can get where you need to be safely. There are multiple types of car battery chargers, each one serving a different purpose. Learn how to use a ca battery charger with this guide from the service team at Sid Dillon Chevrolet Fremont near Columbus. This guide will show you how to use the car battery charger, the different types of chargers that are available, and what to expect when you use one. Don’t hesitate to reach out to our service team if you have any questions.

Prepping the Car Battery Charger 

If your vehicle’s battery still has some juice, a good jolt from the charger will get it going again. However, before you get started, you might have to remove the car battery to charge it; this will depend on which car you’re driving. While most car batteries are easy to access, if yours is loathed under the fender, in the trunk, or under the seat, additional tools or help from a service expert may be needed. Schedule a service appointment if you would prefer a factory-trained and certified technician to change the car battery for you.

What Are the Types of Car Battery Chargers? 

As mentioned above, there are different types of car battery chargers: charger, maintainer, and restorer, and each type serve a specific purpose: 

  • Charger: Chargers usually use a low-amp charge to fully recharge a car battery in around 24 hours, but they can be found in different outputs. A portable car battery charger is good to have on-hand during long travels beyond Lincoln. When using a car battery charger, keep an eye on the battery’s charge level to avoid causing irreparable damage by overcharging the unit. 
  • Maintainer: Maintainers keep tabs on the battery’s charge level, and stop charging once it’s full. These are great when you continuously power without overcharging the battery. If you enjoy the outdoors, you can choose a solar-powered maintainer that allows you to listen to music from your car while keeping the battery’s charge. 
  • Restorer: Car batteries can start to formulate lead sulfate crystals when they run low on charge or fail altogether. This build-up of lead sulfate crystals can prevent the battery from hitting a full charge again. Restorers prevent this from happening; they detect battery sulfation and use a desulfator to restore the battery. This is an excellent additional accessory for your battery that also provides an output to charge your battery.

Important Note: If you notice that you rely on a battery charger often, this is a sign of a larger issue that should be addressed.

How to Charge a Battery 

Before starting, the charger should be off. Once it’s off, follow the instructions below (or the instructions that came with the charger):

  • Attach the charger’s positive cable to the battery’s positive terminal.
  • Attach the charger’s negative cable to the battery’s negative terminal. 
  • Adjust the charger to its slowest charge rate.
  • Then, power on the charger and set a timer.
  • When you’re ready to disconnect the charger, make sure it’s off first
  • Then, detach the cables. 

How Long to Charge a Car Battery 

The time varies depending on the output of the charger and the battery’s condition. If the volt of the battery is less than 11.85 and your charger supplies a 5-amp charger rate, it can take about 12 hours to fully charge your battery. Keep in mind that these estimates are for car batteries with 400 to 500 cold-cranking amps. The number of cold-cranking amps and battery voltage affect the charging times.

Replace Your Car Battery Near Omaha!

If you have any additional questions about how to use a car battery charger or where to get a portable car battery charger, don’t hesitate to give our service center a call. We offer competitive prices and excellent service specials on much-needed services.



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Sid Dillon Chevrolet Fremont 41.45158, -96.46513.