Monday, January 30, 2023

What Can Drain Your Car Battery

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Car Battery Charging Time

The heat can drain your car’s battery

Before you buy a new battery, I suggest you recharge it first and see if that will solve your problem. Do you know how many hours to charge it? Well, it depends on how discharged your battery is. Usually, it takes up to 12 hours to recharge.

NOTE: If your battery becomes really hot while you charge it, disconnect it from the charger immediately! The battery should not have more than 125 Fahrenheit during charging. This means that your battery has malfunctioned and cannot be fixed.

My Car Battery Wont Start My Car What Should I Do

Well, now that you clearly understand what can drain a car battery when the car is off, it is important to contact a qualified mechanic to have a look at your car battery and properly diagnose the cause of your dead battery.

Preventive Measure to Avoid A Car Battery Draining When The Car is Off

Once your car battery issues have been resolved, you should take the following preventive measures to avoid a repeat of the same frustrating dead battery issue.

  • Train yourself to take time when shutting your car off to ensure everything is as it should be. Turn off all lights, close all doors properly, disconnect any electronic devices, and do not leave your radio playing.
    • Constantly check on the cables connecting to your battery. Make sure they are tight enough to reduce the occurrence of a faulty charging system for your battery. You can also regularly test your charging system using the following steps:
    • Clean the negative and positive cables to your battery and ensure they are tightly connected.
    • Get a voltmeter and set it to 20v on the DC scale.
    • Have someone start your engine and keep it running at 2000rpm.
    • Connect the voltmeter leads across the battery posts and note your meter readings, which should be a steady reading of between 13.5v and 14.5v. You can also consult the repair manual for your car model to get better information on the expected performance of your charging system.

    Keeping The Lights On

    Having the headlights switched on for long has known to be a common reason for the car batterys power drainage. A few of the newer car models come with the feature of automatically switching off the headlights if kept idle for long. Make a point to switch off your headlights when youre keeping your car idle to prevent a dead car 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.

    To avoid a dead battery, the first thing you need to know is whats causing it. Put those jumper wires aside and check out these seven things that could explain why your car battery keeps draining.

    Is It Ok To Leave Chargers Plugged In

    7 Things That Drain Your Car Battery

    You can leave it plugged in as when you remove it it will shut off the power to it. If you want to be SUPER safe then you can if you want. Its unlikely for a surge to happen from it not charging anything.

    Do cigarette lighter chargers drain battery?

    Besides the instances where we simply leave the lights on, here are a few examples: First, air fresheners, radar detectors, phone chargers, dash cams and other accessories that plug into the cigarette lighter socket can drain the battery.

    Does charging your phone in the car drain your battery?

    Turns out, charging your phone in your car could do more harm than good. Plugging your phone into a cars USB port could stall the charging and even damage the charger. Charging your phone could even drain a cars battery, especially if its an older model.

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    Causes Of A Drained Car Battery

    The most common reason a car battery is draining is parasitic drain caused by a faulty electric consumer like a bad door lock switch or a trunk lock switch. It can also be caused by a broken alternator or human errors, like forgetting electric consumers on.

    Any one of these issues can cause your car battery to die, leaving you stranded without a ride. Heres a more detailed list of the possible things that could drain your car battery:

    Leaving A Car Running With The Headlights On All Night: Draining A Car Battery:

    This is another way that your car battery can die. Make sure to turn off your headlights and interior lights when youre not using them. This will save you some money on your electricity bill and also help to preserve your car battery. Do not forget to turn off lights inside and outside of your vehicle before you leave it unattended for long periods of time

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    When Should You Not Use Hazard Lights

    The National Highway Code states that flashing warning lights “may only be used when your vehicle is stationary, to warn that it is temporarily obstructing traffic.” They must not be used, “as an excuse for dangerous or illegal driving or parking.” Some states will allow you to use your hazard lights while driving to …

    The Top 5 Things That Can Drain Your Cars Battery

    How to Stop Mystery Battery Drain in Your Vehicle

    Posted on July 3, 2017

    Its early in the morning in Winnipeg, and you walk out to your car, ready to go to work and start the day. You stick your key in the ignition and turn it, and then nothing. Your engine should have turned on but instead, nothing has happened.

    You turn your key again, and just hear a series of clicks. Your cars battery is dead, and youre not going anywhere.

    But how did this happen? Contrary to popular belief, there are quite a few things that can happen to drain your battery. Curious about what these might be? Read on, and learn about the 5 most common reasons that your car battery may be drained.

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    Youre Taking Too Many Short Drives

    Starting the engine uses a tremendous amount of power from your battery, but as mentioned earlier, the alternator charges your battery while the engine is running. However, if you make frequent short trips, the alternator may not have enough time to properly charge the battery between pit stops, especially if you have an older battery. In the long run, frequent short trips can shorten the life of your car battery.

    If I tell you, you can increase your battery life or run like new again. Check out How to increase battery life by reconditioning it.

    What You Can Do About It

    How do you stop a car battery from draining when not in use? You can avoid parasitic drain on your battery by unplugging optional equipment such as cell phones and chargers when you park your vehicle for the night. You can also turn off every light in your vehicle and make sure that your trunk, glove box and doors are all fully closed and latched before leaving your vehicle.

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    Battery Trouble Need An Expert Opinion Come To Ride Time Now

    At Ride Time, we understand how frustrating it is when your car battery fails, or when you cant get your car to start. So if youre having battery troubles, come to our Winnipeg location today!

    We stock a wide range of car batteries, and our advanced 8-service bay facility features advanced electrical diagnostic equipment. No matter whats going on with your car, we can help you understand what the issue is, and recommend the best next steps to get you back on the road!So dont wait, and dont risk getting stuck with a dead car battery. Come to Ride Time now, and see how our expert service technicians can take care of your every need!

    Car Battery Drain Test

    Items that drain your battery

    How long ago was it when you last replaced your car battery? If you have been using it for over four years, then the most probable cause of your car battery draining when the car is off is old age. It can no longer hold a full charge like it used to. Typically, you should replace your car battery between every 3 to 5 years of usage.

    A well maintained and high-quality battery can effectively serve your car for up to a maximum of 5 or slightly more years. A poorly maintained one, however, may need replacing in as little as 3 years of usage.

    Therefore, your constant car battery drains may be a tell-tale sign that your battery has reached its maximum years of service. Replacing it should resolve the car battery draining issue.

    Pro tip:If you have, a free maintenance battery, then the charge indicator should confirm to you whether you need to replace the battery or not. A yellow eye is an indication for a battery that needs replacement.

    If your battery is not old, but it still drains when the car is off, you should inspect the state of your alternator.

    The alternator is responsible for recharging the car battery and powering electrical systems of the car such as the radio, lights, ignition, etc. A corroded or defective alternator diode will faultily continue charging the circuit even when the car off. This, in turn, will drain your car battery and cause the car not to start.

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    How Fast A Car Battery Will Drain If The Terminals Are Disconnected

    Its easy to think that if you disconnect your car battery that you can avoid the parasitic draw and preserve your car batterys health, but thats not the case at all.

    Car batteries, which are lead-acid batteries, are just like any other battery in that they undergo self-discharge. What this means is that the chemical reaction inside of the battery reverses itself from a full charge to a state of discharge slowly over time as the result of not being connected to a float charger which keeps the battery topped off at 100%.

    Luckily, lead-acid batteries have a fairly slow self-discharge rate and youll lose about 4-5% of your overall charge on a monthly basis.

    Heat will increase the rate of self-discharge as it lowers the internal resistance within the battery, so if you store it in a 90 degree Fahrenheit garage your battery may lose more than the 4-5%.

    If you plan on disconnecting your car battery for any reason such as to go on vacation, or maybe you just dont use a certain vehicle throughout the winter, the best a way to keep your battery 100% peak shape is to hook up a smart charger that has a float mode that will keep your battery in optimum health while not in use.

    Faqs About Car Batteries

    1. What does a car battery do?

    A car battery is mainly used to power the starter motor during ignition.

    2. What should the voltage of my car battery be?

    You should get a voltage reading of around 12.6 to 12.8 volts to make sure that it is still in good condition.

    3. How much is a car battery in the Philippines?

    The price of a new car battery in the Philippines ranges from Php 3,000 to Php 7,000.

    4. What does an alternator do?

    An alternator provides electrical power to a car once the engine is turned on.

    5. How long do car batteries last?

    On average, car batteries last for around four to six years.

    That is all you need to know regarding car battery draining overnight. Here at, we value your interest in the automotive industry. Visit our website to find out more.

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    How Car Batteries Work

    Most vehicles today rely on lead-acid, SLI batteries to create a chemical reaction to get the car going. SLI, or starting, lighting, and ignition provides a quick blast of energy to supply power to headlights, accessories, and most importantly, the engine. Once the battery aids in getting the engine started, the alternator takes over by supplying power while the vehicle drives.

    Do A Battery Terminal Test


    The battery terminal test helps you check whether your terminals are making good contact with the battery posts. Basically, the test measures voltage drop between the battery post and its terminal.A high voltage drop indicates that the charging system has difficulty supplying adequate charging voltage to the battery. This means in turn that the battery has difficulty supplying power to the starting and fuel injection systems and other circuits during cranking and start up time.

  • First, disable the fuel system by removing the fuel pump fuse. To find the fuse, look for the fuse box or the power box . Removing the fuse will prevent the vehicle from starting during the test. On vehicle models with a distributor, you can keep the engine from starting by disconnecting the ignition coil wire from the distributor. Then you can use a jumper wire to connect the cable to a good ground on the engine .
  • Set your digital voltmeter to a low setting on the DC Volts scale.
  • Connect the negative voltmeter lead to the cable terminal of the positive battery post .
  • Connect the positive voltmeter lead to the positive battery post.
  • Ask an assistant to set the parking brake, put the transmission in or Neutral , and crank the engine for a few seconds, just enough to get a good voltage reading but less than 30 seconds. If you have to crank the engine again, let the starter motor rest for a minute or more before cranking the engine again.
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    The Battery Isnt Charging While You Drive

    Your car relies on your battery to start the engine. However, when your vehicle is driving, your battery relies on the alternator to keep it charged. If your alternator isnt working properly, it cant effectively power your battery, which can make your car difficult to start even if youve just been driving!

    If your car wont start after driving, there may be a possibility that it is your alternator.

    Power Loss And Slow Chemical Reactions

    Freezing weather drains your battery power by 30-60%. Your battery naturally recharges as you drivebut you must first face the challenge of getting it started. Why does the cold drain battery power?

    Most batteries work through an electrochemical reaction, which sends power signals to your terminal ends. This chemical reaction slows down in colder weather, weakening your batterys power.

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    Interior Lights Were Left On

    Internal lights can also drain the car battery, although they do not use as much power so they will do so at a slower rate. Whether the door has been left slightly ajar or you manually turned the lights on and left them, if your car doesnt have an automatic shut off feature, a courtesy light could be enough to run a weak battery down over night.

    The solution is the same as with the headlight problem get a jump start and run the car to charge the battery.

    Things That Can Drain A Car Battery When The Car Is Off

    The Top 5 Things That Can Drain Your Carâs Battery.

    What can drain a car battery when the car is off? If this question is also yours and you need an answer, then continue to read and take action to stop your car battery from draining when its off.

    Even a brand new car battery can drain when the car is off completely. Over the years, I have experienced many car battery draining issues when the car is off.

    Detecting dead car battery signs in the car is a little bit confusing, so knowing what can possibly drain a car battery helps you to keep the car battery healthy.

    But, letting your car battery drain for a long period of time makes the car battery obsolete, and eventually, the car battery needs to be replaced.

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    Battery Draining While Driving: Gmc Acadia

    If your battery is draining while driving, it is almost without exception the Acadias alternator that is causing the problem. If it is you should see the battery or alternator light on, it indicates that the alternator is not creating the necessary voltage to charge the battery.

    It could be a bad battery, or more likely a bad battery cable too. But its not very likely. If you hear a whining noise accompanied by the battery light, its almost guaranteed that its the alternator that is at fault.

    Reasons Why Your Car Battery Could Be Getting Drained Sooner Than You Think:

    Car Battery, Battery Tips, Bike Battery – October 27, 2020

    One of the scariest situations that you can or even might have faced is that youre running late for a meeting and your car refuses to start. rush to your car, only to find out that it wont start. The headlights are dim, the ignition is feeble and the engine simply stutters and dies with every turn of the key. It is only in such situations that we realize were dealing with a dead battery. But, have you ever wondered what are the most common causes of this? They are simple human errors like leaving the headlights on, not shutting the trunk of your car or maybe even leaving on some light inside the car.Here are the 4 reasons why your car battery could be getting drained sooner than you think:

    Take long trips or short, power up your phone or the phones of all your road trips, when it comes to longer battery life and hassle-free maintenance, rest assured #WeGotYourBack. Take to the roads with confidence only the best car batteries and two-wheeler batteries can provide you with. Switch to TATA Green Batteries!

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