My Car Battery Is Dead

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How to Fix Dead Car Battery

Roadside assistance is an optional car insurance addition that can sometimes swoop in for the big save during your hour of desperate need. If youve got roadside assistance, get on the horn and call in for help. Not sure if you do? Call your insurance company and find out.For a fee, most towing companies can come to you and jump start your car or tow you to a mechanic who can determine if your battery needs to be replaced, recharged, or simply jumpstarted.

Typically, all a dead battery needs is a jump start to get it going again. Once its been brought back from the Great Beyond, driving your vehicle should be enough for it to recharge back to its normal, fully functional state. If your battery continues to die after its been jumped, this is a sign that you may need to have it replaced. Fortunately, battery replacement is fairly inexpensive.

Parasitic Drain On Your Car Battery

Parasitic drain on a car battery means when a vehicles electrical system continues to drain energy from the battery, even if the vehicle is shut off.

A brand new car battery dies because of a parasitic drain, which is now common at auto repair shops.

The vehicle battery must be recharged to provide energy for the cars electrical system.

But when your new car battery keeps draining, it cannot be recharged properly, so the battery goes dead in the long run.

Check your car for a bad alternator, a faulty relay, headlight switch and other electrical components and fix them to avoid parasitic drain on your car battery.

The Radio Or Other Accessories Are Killing Your Battery

It is possible that leaving certain accessories on when the car is off can drain the battery and cause it to fail. These accessories include the radio, headlights, or interior lights. It is important to make sure to turn off all accessories when the car is not in use to avoid draining the battery. If you notice that your battery is dying frequently, it may be a good idea to have it checked by a mechanic to determine whether the issue is the battery or some other component.

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Find A Mechanic To Diagnose Or Fit Your Battery

It goes without saying, but make sure not to leave any of your electrics running for an extended amount of time when the car isnt running, as this is the easiest thing you can do to avoid your car battery dying.

Remember, the easiest way to get you car moving again is to enlist the help of a professional.

Engine Cranks But Doesnt Start

Car Battery Completely Dead No Lights : Car is totally dead  battery is ...

If your engine cranks or turns over when you turn the key, but it won’t start, I say the most likely culprit is your battery. It might be your starter, it might be something else, but 94% of the time, it’s really your battery, even if the car is cranking fairly vigorously. Even if an ammeter says the battery is good, it can still be a few volts shy of what your vehicle needs to run efficiently.

When you find yourself with a car that won’t crank hard enough to start, you’ll want to use jumper cables or a jump-starter box to get it running again.

Once your car is running again, disconnect the cable, then let your engine run for 30 minutes so that your alternator can charge up your battery again.

After that half-hour, when you are stopped at home or in a safe place, do a little test. After you turn the engine off, wait at least a minute, then start it again. Wait another minute and start it another time or two to make sure that you won’t be stranded at the gas station or wherever you go next.

Note: At this point, most batteries will have charged themselves up from the running of the alternator and be fine for a day or two. Do not take that time for granted. Use it to hunt down a new battery and replace the old one before you end up stuck in the middle of nowhere.

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The Headlights Were Left On And Did Not Turn Off Automatically

If you left your headlights on while the car was off, it can cause the battery to drain and eventually die. This is because the headlights consume power from the battery even when the car is not running. If you find that your battery is dead because you left the headlights on, you can try jump starting the battery using jumper cables and another car.

Ensure The Battery Is Connected Properly

If your car wont start and youve tested the alternator and found that it works, then you should check if the battery is connected properly.

Make sure:

  • The positive cable has a firm connection.
  • Theres no corrosion on the cables or terminals .
  • The negative cable has a firm connection.
  • The battery tray is secure in the engine bay.

Tighten the terminal connections if theres any corrosion and clean them with a wire brush before reconnecting to their respective terminals.

Heres a helpful YouTube video that shows you how to do this:

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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.

Frequent Car Jump Starting

How to Tell if a Car Battery is Dead

If you always have your jumper cables out to start your car due to the inability to start on a consistent basis, this is a sure sign that something is wrong with your vehicle. In this case, you might have finally had enough when your car is completely dead but the battery is good this indicates something is very wrong with the alternator, starter, fuel pump, or electrical components.

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Free Car Battery Checks At Halfords

Halfords can provide free car battery checks in-store and recommend either a charger or a replacement if youneed one. As we have the UKs biggest range of batteries, covering around 95% of vehicles on the road, itslikely well have the right one for your vehicle.

If you’re not sure what battery you need, just pop your car’s registration into our handy look-uptool.

Remove The Battery Clamp

The battery clamp holds the battery in place. Unscrew it with a wrench or socket to move it out of the way. Frequently, the battery clamp will be three pieces that are attached but independently mobile. So, if the clamp seems stuck at first, try to move the clamp’s sidearms up and down to remove them from the battery tray at the bottom. Once they’re free, the entire clamp will quickly come off.

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When The Starter Motor Grinds Or Clicks

If you hear other unusual sounds when you try to start your car, the problem probably isnt a dead battery. Clicking often has something to do with the starter solenoid, or even a bad starter, while a grinding sound may indicate a more serious issue.

When a car makes a grinding sound and doesnt start, its usually a bad idea to keep trying to start it. This kind of grinding can happen when the teeth on the starter motor don’t mesh properly with the teeth on the flywheel or flexplate. So continuing to crank the engine may cause serious damage.

In a worst-case scenario, replacing a flywheel or flexplate with damaged teeth requires removing the engine, transmission, or both.

Reason : Have A Bad Spark

Dead Car Battery? Here

Even after having a good battery, a car wont start if the spark malfunctions. A spark usually helps start the combustion explosion, which is responsible for starting the engine.

In that case, if the spark doesnt work, there wont be any spark, thus not igniting a combustion explosion in the engine. As a result, your car wont start. Although this is very difficult to identify the problem, below are some symptoms that help to notice the problem.

  • Engine Misfires

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A Sudden Slower Start

When temps drop below 20 degrees, generally any cars starting cadence will slow down. Get below 0 and it gets even slower. If you notice this behavior suddenly and the temperature hasnt dropped a slow, dragging start suddenly begins, get your battery tested as soon as possible, and dont ignore it. Eventually, the car will not start.

If a slow starting battery seems to be able to take a charge and test fine, its likely that a parasitic drain or draw is discharging the battery while the vehicle sits, and the electrical system will need to be looked at.

Signs of a Bad Starter or Alternator vs. a Car Battery

A bad alternator will exhibit many of the same signs of a dead car battery: dim headlights, electrical issues, difficulty starting, and a frequently drained battery. An alternator, however, will often have its own alternator light on the dashboard. Also, your car may experience unusual rattles and sounds. If youve replaced your battery or are thinking about it, it may be a good idea to check your alternator at the same time.

A bad starter, however, has a whole other set of symptoms. When you try to turn the key, for example, youll often hear a single click rather than a few rapid clicks. You wont be able to crank the motor. You might hear a grinding noise or even see smoke when attempting to start it.

Of course, sometimes a battery is replaced and these other problems continue youll want to ask your mechanic and continued issues.

How Long Can A Car Sit Before The Battery Dies Explained

Since the pandemic, many people are driving less. According to Metromile data, fewer miles were driven in 2020 and early 2021 compared to pre-pandemic levels. As more people ditch the commute and work from home, opt to take public transportation, or return to travel, cars are parked and staying put. While that may not seem like an issue, it could lead to a dead battery. Find out how long a vehicle can sit before the battery dies and best practices to keep your battery well maintained.

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How Dead Is The Battery

When you recharge a dead car battery, its very helpful to know just how dead it is before you decide how youre going to deal with it. A healthy battery will show 12.4 to 12.7 volts across both terminals when measured with a voltmeter, a simple device thats very handy when 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 you jump-start your vehicle and get it running again.

Common Problems To Look For

Is Your Car Battery Dead? Quick Way To Check Battery and Test Alternator

First, check your lights. If the controls were left in the “on” position, you may have accidentally drained your battery. If the controls are in the “off” position, try to turn on the lights. If they work, your battery may not be the problem. You may have a faulty starter or other problem preventing your car’s engine from turning over.

A car that occasionally refuses to start without a reason may have an old or weak battery. Open the hood and look at the battery terminals. If they are frayed, have a white buildup, or seem to be leaking, it’s time to consult a professional. You may need new cables in addition to a new battery.

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What Causes A Car Battery To Keep Dying

Some of the most common reasons for a car battery to die repeatedly include loose or corroded battery connections, persistent electrical drains, charging problems, constantly demanding more power than the alternator can provide, and even extreme weather. Some of these problems are enough to kill a battery on their own, while others are usually coupled with a battery that is already weak or on its last legs.

  • Headlights or dome lights left on.
  • Headlights, or even a very dim dome light, will drain a battery dead overnight.
  • Make sure to check for any interior lights when it’s dark outside.
  • Some headlights are designed to remain on for a while, but a malfunctioning system may leave them on permanently.
  • Battery in weak or poor condition.
  • A poorly maintained or weak battery may not hold a charge very well.
  • Even small drains, like the memory function in your car radio, may kill a very weak battery.
  • Corroded or loose battery connections.
  • Corroded battery connections can prevent the charging system from topping off your battery when you are driving.
  • Loose battery connections can also cause problems.
  • Other parasitic drains in the electrical system.
  • Parasitic drains can be difficult to find, but they are fully capable of killing batteries dead.
  • Common drains include glove box and trunk lights that come on, or remain on, when they shouldn’t.
  • Extremely hot or cold temperatures.
  • Extremely hot or cold weather can also magnify other underlying issues.
  • Charging system problems.
  • Loose Or Corroded Battery Connections

    Loose or Corroded Battery Connections

    The connection between the car battery and the car electrical system should always be strong and tight enough not to be loose.

    But, your brand new car battery dies when the battery cables are not engaging properly.

    Even a new car battery terminal connection can become loose for some reason that causes the battery to not charge completely.

    Take time to check your car battery connections regularly and tight battery cables whenever possible.

    You might experience corrosion even on your new car battery, but the battery connection should always be corroded-free.

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    How To Keep A New Car Battery From Dying

    How To Keep A New Car Battery From Dying

    Car owners do not want their new car battery dead after a week. Thats why you should know how to keep your new car battery from dying as a vehicle owner.

    Here are some tips to keep a brand new car battery from dying:

    • Regular battery inspection:The most important step you need to take to keep a new car battery from dying is battery inspection on regular bases. Regularly check your new car battery for loose connections, corrosion, and damage.
    • Keep your battery clean:Even a brand new car battery is also going to be dirty after a long drive. But, to keep a new car battery healthy, regular cleaning is important.
    • Avoid storing a new car battery:A new car battery should be used on the vehicle. If you need to store a new car battery, make sure to store your battery in a dry and normal temperature place.
    • Shut off all lights:When your new car battery keeps dying, check the lights of your vehicle to keep your new car battery from dying. Shut off the cars interior and headlights before you come out of the car.

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    What Is The Normal Charge For A Car Battery

    Fully batteries should measure at 12.6 volts or above. However, when the engine is running, this charge should measure at 13.7 to 14.7 volts. That said, if you don’t have a multimeter to tell you the voltage of your car’s battery, then you can do a test of your electrical system. You do this by starting the car and turning on the headlights.

    Dead Car Battery Tricks

    Jump-starting your battery is the primary suggestion, and the first step that should be taken is that safety should be ensured. Check for physical damage to the battery.

    Do not jump start if there is a leak or there are any cracks. You could take extra precautions and wear gloves and glasses to protect your eyes and skin from battery acid.

    Clean off the corroded battery cables. You could use a toothbrush and a mix of baking soda and water to clean the cables. Now, you need a good, functional battery.

    If you have another car with a charged battery, then use that or else ask another car owner for help.

    Why it is important to have clean and tight battery cables is because otherwise, you will face problems while jump starting.

    Park the two cars nose to nose so that batteries from both vehicles can be plugged together which is our next step.

    Turn on the ignition of the car having charged the battery and open the hood of both cars. If you are new to this then note that each battery has two terminals one positive and one negative .

    One positive end of the jumper cable should be linked to the lifeless battery, and there is another positive end to the jumper cable which should then be connected to the charged battery.

    The positive end of the jumper cable is usually red, and the negative end is black. There are two negative ends to the jumper cable as well, and one of them should be attached to the negative terminal of the battery which is in good condition.

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