Every editorial product is independently selected, though we may be compensated or receive an affiliate commission if you buy something through our links. Ratings and prices are accurate and items are in stock as of time of publication. Car batteries
are essential for vehicle operation, but like everything else, eventually they fail. You'll know this has happened when your vehicle won't start or the motor turns over weakly. When your battery runs down and can't start your vehicle, it's important to determine if it's drained and needs to be recharged, or it's too weak to hold a charge. Sometimes low or dead batteries simply need charging or boosting. When they lose their ability to hold a charge, they need replacement. Proper battery
testing makes it easier to figure out what's wrong with your battery. Learn how to do a detailed test of your car battery with a dedicated battery tester. You could use a multimeter, but you won't get as much information about what's going on inside the battery. Project step-by-step (6)Avoid Driving for Several Days, Then Locate the Battery
Step 2 Connect the Battery Tester
Sign Up For Our NewsletterComplete DIY projects like a pro! Sign up for our newsletter! Do It Right, Do It Yourself! Step 3 Test Voltage
Step 4 Test Cold Cranking Amps
Step 5 Perform Cranking Test
Step 6 Perform Charging Test
Originally Published: June 25, 2020 Similar ProjectsHow do I check if my battery is bad?How Do I Know if My Car Battery is Bad?. Battery light illuminated on the dashboard.. Engine cranks slowly when starting.. Vehicle requires frequent jump starts.. Clicking when you turn the engine.. Lights are dim.. Car won't start.. How can I test my AA batteries at home?THE DROP TEST
Take a AA battery, hold it over a hard surface (one that you won't worry about scratching) about 2″ up, and drop the negative flat side unto the surface. One of two things will happen: The battery will “thud” on the surface and might even stay standing up. OR the battery will “bounce” and fall over.
|