How Long to Charge a Car Battery

Sometimes things don’t always go to plan and you may find yourself trying to start your car whilst the battery is dead. If you’re in a hurry it can be frustrating knowing that it’s going to take a while to get your car charged fully so you can reach your destination. Chances are that you have a car battery charger in your garage, and you can use to charge your car at any given moment.

In times like this, it’s useful to know how long it takes to charge your car battery, so you know what times you’re dealing with if you ever reach an emergency again. When it comes to charging your car, there’s a lot that goes into it and a few factors come into play that determines how long it’ll take.

How Long to Charge a Dead Car Battery

From when your car battery is dead to a full charge can take between 4-24 hours depending on the amperes your car battery is charged which and the size of your battery. Car chargers commonly charge at 4 amps and the average car size battery is 52Ah so to charge a dead car battery at this size to full will take 10 hours. If you don’t need your car battery fully charged but you just want it charged enough so that you can start your car, it’ll probably take 1 hour.

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If you do want to find out how long it’ll take to get your car battery charged, you’ll have to find out how many amps your battery charger charges at and the size of your car battery. The more amperes your car charger charges at, the faster it’s going to take to get tour car battery to a full charge. However, if you want to maintain a better car battery over a long period of time, then using a car battery charger with a low ampere that chargers your battery for longer is better.

The size of your car battery is also a factor when it comes to charging speed. Most mid-sized cars use a car battery size of 40-80Ah. And depending on the type of battery your car uses; this can also factor into the charging speed.

There are two types of battery your car could be using, AMG/gel or a standard flooded wet car battery. The main difference between them is the charging rate. AMG batteries can handle a higher charger and discharge rate than gel batteries so they will get charger quicker than a standard flooded battery.

How Quickly Should You Charger Your Car Battery?

You’re probably thinking to go get a charger that charges at a higher ampere but there are downsides to doing this. If you get your battery which 30 amps, it will charger your car super quick but there will be downsides to this.

If you want to charger your car battery at a quicker rate, then you should know that this can damage the car battery – to charger your car battery quickly, this will require a charger with a high ampere and this can damager the battery. Charging your car with low amps will ensure that your battery is prolonged for long term use however you’ll have to leave that car in the garage for hours.

Normal car battery chargers give out an ampere of 4-5 so depending on whether you want a full charge or you just want to get your car started, it can take 1-2 hours just to get your car started and 10-24 hours to get your battery from dead to full.

If you want to charge your car battery relatively quickly without damaging the battery, you should go for a charger that charges at a rate of 4-15 amps. If you go over this, chances are that you’re compromising your car battery health for a quicker charger.

Jump-Starting Your Car Instead

If you don’t need your car at a full charge but you need to get your car started. A jump starter is a convenient device that acts like the battery if another car and it comes with alligator clamps that you use to attach to your car battery. This will get charger your car started within a few seconds. Jumpstarters (View on Amazon) are a lot healthy for your car than jumper cables that require another vehicle to provide the power needed to boost the dead car battery. If you connect your jumper cables wrongly, you can damage your cars electrical system.

Using the Right Battery Charger

If you want to find out the right car battery charger to use, you want to make sure you know what your car battery size is and choose the appropriate charger. Choosing the wrong charger can result in your car battery being damaged. If you have a standard car charger, it should be able to monitor and regulate the amperes given out to your car battery.

Quality chargers usually give out lower amperes and keep your car battery healthy over a longer period than a charger that promises faster charging – these are usually of lower quality and your car battery health will be compromised.

If you are looking for a car charger that will charge your car at a healthy speed, the CTEK 56-959 (View on Amazon) will charge your car at a safe speed. It’s a well-known brand that provides quality car chargers that won’t compromise your car’s battery health.

Maintaining Your Battery

A car battery that has been maintained car last up to 5 years. If you don’t take care of your battery often or any other key components of your vehicle, you might have to get the battery replaced within 2 years. Failing to maintain key components of your vehicle can lead to a lot of problems and this can cost a lot of money to repair at the dealership.

If you want to avoid battery-related problems and save $100s of dollars that you’ll spend at the auto repair shop, you’ll need to service your vehicle often – you can use our mechanic-rated Auto Maintenance and Repair Manual to do this. It’s basically what mechanics use to go through your vehicle to check if there are any problems that need fixing. As soon as they notice the most minor problem, they’ll ask you to fork out some money even though it’s a problem you can fix yourself in minutes – the manual will teach you how to maintain your vehicle every few thousand miles and it’ll teach you how to fix minor problems that mechanics will ask you to pay for; saving you money in the long run.

A lot of our readers have the Auto Maintenance and Repair Manual printed on their garage wall and 92% of them haven’t visited the auto repair shop in the last year because they know what to do to avoid problems. All it takes is giving your vehicle a little attention every few thousand miles and you’ll never spend money at the workshop again.