How To Charge A Car Battery Depends On How Dead The Battery Is
Its important to know just how dead your cars battery is before you decide how to recharge it. A healthy battery will show 12.4 to 12.7 volts across both terminals when measured with a voltmeter, a handy device for diagnosing battery issues.
If the voltmeter reads lower than 12.4 volts, youll likely run into problems when trying to start your vehicle. How much lower will determine what method you should use to charge the battery after jump-starting your vehicle.
Battery Tender Junior Battery Charger
Deltran’s Battery Tender Plus ranks as our top overall car battery charger, but the company’s Battery Tender Junior is the perfect choice if you’re simply concerned about long-term battery storage.
Like the Plus model, the Battery Tender Junior is a fully automatic battery charger with a “float” feature that allows for it to be left attached to a battery, charging as it depletes and only as necessary. The Junior is a smaller, more affordable model, though, and while the 0.75 amperage of power won’t allow for a quick charge, you won’t need any more than that if you’re leaving it plugged in for an extended period of time.
The Battery Tender Junior is also quite versatile, as it can be used on standard lead-acid, flooded and sealed maintenance-free batteries, so long as they’re 12-volt. It’s also got an LED indicator that allows you to monitor the power level of your battery — which can tell you when your vehicle is ready for use, but doesn’t change the fact that the smart device handles the entire charging process for you.
The Battery Tender Junior is Amazon’s second-best-selling charger, with 4.7 out of 5 stars based on over 18,000 customer ratings. It’s also available at a discount on the site — and at $44, it’s one of the cheapest models on this list.
Car Battery Charging Guidelines:
- Make sure the battery terminals are clean and free from corrosion.
- Do not attempt to charge a dried-out battery. If needed, add distilled water to just above the battery plates. Do not overfill.
- Refer to any written instructions provided by the battery and charger manufacturers.
- Identify the positive and negative terminals of the battery and attach the correct charger leads.
- If charging a battery connected to a vehicle, be sure that the vehicles electrical system has protection against overvoltage or be sure that the charger will not have high-charging voltages that may damage the vehicles electrical system.
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Schedule Battery Is Dead Inspection
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Can A Completely Dead Battery Be Recharged
Many people are often faced with the problem of a faulty battery that will not seem to bring their cars to life. A dead battery is a problem that is not always easy to fix, especially if you are in a rush. So, can a completely dead battery be recharged?
There are a few ways to recharge your battery, though the phrase completely dead is a bit more difficult to assess. If your car does not start because of a completely dead battery, your only option might be to get a jump start from another car and purchase a new battery in the near future.
In this article, we will discuss how you might be able to recharge a dead battery and how to spot signs that might mean your car battery is dead. We will also talk about how you can get help from Mach1 Service, a technologically savvy company that can provide the fastest service possible.
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How Long To Charge A Car Battery
Fully charging a battery with a charger could take anywhere from a couple of hours to a couple of days, depending on the strength of the charger and the battery’s voltage. While a partially charged car battery will still allow you to drive your car, at least for a short distance, you run the risk of starting this process all over again if you don’t wait for a full charge.
If you use jumper cables, don’t turn the engine off right after the jumpstart. Instead, cruise around for at least 15 minutes so the battery can continue charging. Kill the engine too soon and you could find yourself needing another jumpstart.
If a battery is bad, it won’t hold a chargeno matter how long you leave it hooked up to another car or charger.
It Keeps Your Car Running
The car battery provides a steady stream of voltage to keep your engine and accessories running .
When your battery is too weak or old, it can’t do either of these things. You might need to charge your car battery if your engine is sluggish or slow to start, or if your battery is completely dead.
Beyond starting your car, charging your battery can help clue you in to whether or not it’s time for a new one. For example, leaving an interior light on overnight will drain your battery, but if the battery is “healthy” then it should quickly recharge. A battery that needs to be replaced, however, won’t hold a charge or will need to be recharged multiple times.
Battery Tender Plus Battery Charger
When it comes to picking the right battery charger, the kind of vehicle you drive typically doesn’t play a major role. After all, most cars, motorcycles, SUVs, trucks and other road vehicles use lead-acid batteries, which are relatively resilient and inexpensive to manufacture. A charger that can power up a lead acid battery in an SUV can do the same for one in a motorcycle, for instance.
The best overall charger for your vehicle’s lead-acid battery is the Battery Tender Plus . It’s an automatic charger, which means it will shut down on its own when your battery charge is full, preventing overcharging. It even has a “float” battery maintainer mode that will keep it at full power during periods of inactivity, compensating for the self-discharge associated with lead-acid batteries.
The 1.25 amps of power provided ensures a “low and slow” charge, which is best for the health of your vehicle’s battery. It’s easy and safe to connect and disconnect, spark-proof, and checks to make sure a connection is established before transmitting power. It’s also cited as working well in extreme temperatures — both hot and cold.
The efficacy and user-friendliness of the Battery Tender Plus have earned it a good deal of popularity on Amazon: it’s currently the site’s fourth best-selling car battery charger, with a rating of 4.7 out of 5 stars based on over 7,500 customer reviews.
Does A New Car Battery Make The Car Run Better
Replacing an old car battery with a new one completely resets the EMS system of the car. It goes back to its original factory configuration that your car came with. The Engine Management System is mainly responsible for the smooth functioning of your car. It leads to a great performance that your car came with.
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How Can Mach1 Services Help When You Have A Dead Battery
Mach1 Services provides a technologically advanced way to get roadside help fast. If you find yourself stranded with a dead battery, Mach1 Services will be there to help in an instant. By simply downloading the free Mach1 app, you can find the closest service provider to you by phone.
Mach1 will alert whichever worker is nearest to you, provide you with a run down of price of service dependent on region, and, through the use of an advanced GPS system, will allow the service member to find you quickly.
Mach1 does not require a membership, and the service can be paid for by credit card or debit card directly through the app. When you request help, the Mach1 app will immediately notify the closest service member to you. Plus, the app has a 24/7 phone service that will connect you directly with Mach1.
Can You Revive A Dead Car Battery
We have briefly discussed a few ways to revive your dead car battery. Obviously, jump starting your car is probably the most well-known way of doing this. It is important to check out how much a jump start costs and who to call in case you dont want to do it yourself.
A battery that simply will not start, no matter how much you try while punching the air and cursing the sky, can be brought back to full functionality with a jump start.
Also, driving your car around is a great way to fuel up your car battery, but this is not necessarily involved with reviving the battery, since the battery had at least enough voltage to start the engine.
If a battery is completely dead but has been revived by a jump start, there are ways to fully recharge your battery. The first is, as mentioned, by driving around. If that does not seem to work, however, car battery chargers can regenerate all of the charge into a battery. Keeping a car battery plugged in for twenty four hours can fully recharge your battery, and chargers are typically quite affordable.
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Schumacher Sc1325 Battery Charger
Let’s get the obvious out of the way first: the Schumacher SC1325 is big. It weighs almost 30 pounds, and, including the handle, it’s almost 2 feet tall. It’s also the most expensive charger on the list, coming in at just about $200. For those reasons, the SC1325 might seem more at home in an auto garage than in your own home .
That said, if you’re looking to get moving quickly, you can’t beat the SC1325 . While it has charging and maintenance modes that deliver 2 or 6 amps of power, it can also provide a boost of 40 amps to revive a battery, or — if necessary — a 250-amp jump start that will get even large engines running again. These fast charges have risks for your battery and vehicle , but in an emergency, they may be necessary.
The Schumacher SC1325 handles a wide array of batteries, including standard lead-acid, AGM, gel and deep-cycle units. That still doesn’t mean it’s necessarily the right choice for you. What it comes down to, in the end, is if the SC1325 suits your specific needs. If it doesn’t, you’ll be fine with a smaller, less expensive model. If you want a heavy-duty charger/jump starter that’s going to get you moving quickly should the need arise, this may be just right for you.
Figuring Out The Real Problem
Remember, unless you know the reason your battery died even though your vehicle starts and runs after you recharge the battery, something in your electrical system may be causing the problem. Expect your battery to run down again . If your battery soon weakens or gives out, consider removing it and hauling it down to an auto-parts store. Many will test the battery for you, and you can pick up a new one while you’re there. Alternatively, jump-start your vehicle and get it down to a repair shop. You either have a bad battery or an electrical-system issue; you’ll need the help of a technician to solve the problem.
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Connect The Battery Charger
With the steps mentioned above now complete, you are ready to hook up your battery charger.;
Before beginning any of the processes noted below, please note that your charger may have specific instructions for its operation. You should follow these if they contradict our guidelines below.
Here is how you need to connect your battery charger.
- First and foremost, ensure that the charger is powered off before beginning use.
- Next, hook the positive cable on the charging unit up to the corresponding positive terminal on your battery.
- Repeat the process by hooking up the negative cable to the negative terminal on your battery afterward. Do not reverse these steps the positive cable must be connected first.
- With both cables connected in the correct order, turn your charger on. Begin by setting it to the lowest rate by default, especially if you are using the charger for the first time
- If your charger has a timer, set it for the appropriate charge time. This timer will charge your battery for a set time. If you dont know how much time you need to charge your cars battery, consult your owners manual or an online search.
Charging Your Car Battery
If you havent been driving your car or its been left sitting idle, you may not have enough power in your battery to start the engine. And while it may seem like a good idea, running your vehicles engine five minutes a day is not enough to maintain your car battery.
To maintain the charge in your vehicles battery you need at least 30 minutes of driving – depending on the vehicle and the battery age. However, we recommend using a battery charger. With a fully automatic charger, it can be fitted to maintain your pride and joy or, used as a normal battery charger. Charge every two weeks and youll extend the life of your battery, restore battery performance and minimise the chances of breaking down.
If youre after a battery charger, or a battery for your car – the NRMA are here to help. Simply call .
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Does Revving The Engine Charge The Battery
Yes, revving your engine will charge your battery, but not all the time. Generally, the car system ensures the battery is charged at all times. However, significantly discharged batteries will require you to rev the engine to provide some charge.
Commonly used lead-acid batteries will usually be charged when the alternator is running. However, revving the engine can cause the battery to charge faster, as there is an increased amperage.
Revving over continued time will use more fuel and energy, causing consumption to rise. Although it can be helpful at times, we do not advise doing this long-term, as revving your car can damage the engine.
Revving can cause abrupt temperature changes that will cause stress between the components of the engine, leading to expensive damages if done over extended periods.
It’s All About The Amperage
Imagine you’re sprayed with 120-degree water, coming from a 1/4-inch spigot. You might be uncomfortable, and a small spot on your body might get burned, but that’s about it. Now, imagine you’re sprayed with the same 120-degree water, but it’s coming out of a fire hose. Even if it wasn’t scalding hot, it would be painful. But scalding hot could be deadly.
In electrical power, think of the voltage as temperature. Think of the water flow as current . A car battery is typically 12 volts, not much more than our home electronics gadgets. A typical 9-volt gadget battery produces about 400mAh to 600mAh. Effectively, it can produce roughly five hundred milliamps for about an hour before it runs out of juice. A car battery has a capacity of about 48 amp-hours.
In other words, a car battery produces 96 times more current than a transistor radio battery. If you get a shock from a 9-volt gadget battery, you might feel a tingle. If you get a shock from a car battery, you could die.
Bottom line: When you start tinkering with car batteries, do it with care and respect.
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Thing You Need To Know Before You Buy A Car Battery Charger
- What kind of battery type does your vehicle use? Most likely, the answer is a regular lead-acid battery, but if you drive an RV, it probably has a deep-cycle battery. In any event, you’ll have to make sure any charger you consider is compatible with your battery.
- Do you want a manual or automatic smart battery charger? Automatic chargers are typically easier to use, as they regulate their charge to prevent battery-damaging overcharging, but manual chargers are better for reviving dead batteries.
- How much power do you need in a charger? Do you want one that charges a battery slowly and keeps it maintained while it’s not in use? Or do you want a charger that can power up a battery quickly and possibly provide a jump start, as well?
- What size battery charger do you prefer? Though all of the models on the list are technically portable chargers, some are much larger than others and might therefore be more difficult to use. More powerful chargers are generally larger.
- What do you want to spend on a battery charger? Again, there’s typically a direct relationship between the power provided and the cost of the unit, so if you want to charge more quickly, you’ll need to spend a bit more.
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Jump Starting Your Battery
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