How long does it take to fully charge a dead car battery?

The battery in my Toyota died a couple of days ago. I know it's possible to recharge a dead battery, but how long does it take? The car and the battery are both past their sell-by date, and I’m looking to get a new car very soon, so I don't see the point in buying a new battery for a car I’m hoping to scrap. How long will it take to fully charge my dead car battery?

Answer
Great question! Recharging a battery with a typical charge amp of around 4-8 amperes will take about 10-24 hours to charge fully. However, if you just want to boost your battery enough to start the engine, it would take about 2-4 hours—or, if possible, you can use another vehicle to jumpstart your battery.
The two most common ways of recharging a car’s battery are through idling or using a trickle charger. Idling is the simplest way to recharge since it doesn’t require any extra equipment; all you have to do is turn your car on and let it sit—but remember, if your goal is to charge your battery fully, you’re looking at letting your car idle for hours. If you do this, be sure to turn off anything else in the car that may require energy: radio, lights, air conditioning, etc.
If you prefer not to let your vehicle idle, you can purchase a trickle charger at any store (online or brick-and-mortar) that sells auto maintenance products for between $20 and $100. This device delivers electricity to your battery from a power outlet in a slow, steady stream. This tends to be much better for your car, since trickle charging usually lets the batteries hold the charge longer.
Since you’re hoping to scrap the vehicle and get a new one, you may want to review your car insurance policy. You may find that you’ll want to acquire full coverage for your new ride, which is very likely to increase your premium. To make sure you’re still getting the best deal on the coverage you need, check out the Jerry app. We’ll get you personalized quotes from top insurers in seconds, so that all you need to do is pick the plan that works best for you. And once you pick one, we’ll even help you switch!
Best of luck with charging, and happy shopping for your new ride!
Chloe Jenkins
Answered on Dec 21, 2021
Chloe has a BA in Communication and Media Arts from Montclair State University and more than four years of experience in content writing, editing, and research. Before getting behind the keyboard at Jerry, Chloe was an Assistant Coordinator at her university and a film enthusiast working for the Montclair Film Festival. When she's not writing about car insurance, she spends her time with her pets, playing video games, or enjoying long weekend hikes.
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