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This article was co-written by Jason Shackelford. Jason Shackelford is the owner of Stingray Auto Repair, a family owned and operated auto repair shop with branches in Seattle and Redmond, Washington. He has over 24 years of experience in auto repair and service and each technician on Jason’s team has over 10 years of experience.
This article has been viewed 12,710 times.
Sitting in the car, you suddenly realize that the engine does not start and the lights do not come on. After trying to start several times, you should consider whether it is time for the car to need a new battery. Follow the steps below to check the condition of your car’s battery.
Steps
Check battery with voltmeter
- If the voltage is lower than 12.2 V, “small current charging” or some form of slow charging should be carried out for the battery. Check back when finished.
- If it exceeds 12.9 V, the voltage is too high. Turn on your car’s headlights to reduce the pressure. Too high a voltage can result from the generator overcharging the battery.
- Even though you have a voltmeter on hand, you should still check the battery’s ability to supply power.
Check the battery with an electric detector
Check the battery by starting the machine
- A voltage reading below 9.6 V means that the battery has been sulfated and cannot maintain or receive current.
Advice
- Most car batteries have a lifespan of 4 to 5 years. In hot climates, the battery life can be as short as 3 years. If charging and notice that the battery has no charge when the vehicle is not running, replace it with a new one.
- If purchasing a new battery, be sure to dispose of the old battery in strict compliance with local regulations. Usually, repair centers will take care of this for you.
- You can check and charge the battery at local auto repair centers.
- Before purchasing a new generator, it is necessary to check the entire system more thoroughly.
Warning
- Never attempt to short the battery terminals to avoid serious consequences such as fire, terminal damage or hydrogen explosion.
Things you need
- Voltmeter
This article was co-written by Jason Shackelford. Jason Shackelford is the owner of Stingray Auto Repair, a family owned and operated auto repair shop with branches in Seattle and Redmond, Washington. He has over 24 years of experience in auto repair and service and each technician on Jason’s team has over 10 years of experience.
This article has been viewed 12,710 times.
Sitting in the car, you suddenly realize that the engine does not start and the lights do not come on. After trying to start several times, you should consider whether it is time for the car to need a new battery. Follow the steps below to check the condition of your car’s battery.
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