How Long Does A Car Battery Last Without An Alternator

Do you need to learn how to jumpstart a car or find another way to charge a car battery? Generally, there are four ways to charge a car battery. 1 day ago · The trauma was real for Capasso, who lived in Battery Park on 9/11, directly across from the Twin Towers the day they came down. Different kinds of battery. Basically you should be thinking about how big a battery can you fit, and less about how small and cheap a battery you can get away with, now I know money does not grow on trees, however the larger the battery the less percentage wise you will be draining it each day, and the longer it will last for you, both in power usage (battery capacity. The reverse of that is that a partial charge will bring the voltage up dramatically, so that you may be able to start the car without waiting for full charge. Otherwiseif you give the battery a full charge (overnight is best) you've got an excellent shot at making it those 20 miles, especially during the day with your car headlights off. Story continues below. If you do any driving, the battery charging that takes place is enough to counter the drain until the next time, but if the car sits, the battery drains JUST enough to give you the. You also have to. Without knowing some of the other answers to those questions above it's really tough to say how long a battery should last. starting a car with no alternator? I wouldn't have thought the car would last too long without the alternator returning the charge to the battery to power these. The charging capacity of the alternator and the quality of the connections. Pop the hood and check the battery, and you might think you've found the culprit. Alternator Frequently Asked Questions. An average car battery has a lifespan of at least four years, but many give up before that while a rare few go even beyond five years without a problem. Do car batteries last longer in cold climates than in hot ones? Car batteries last an average of two thirds as long in hot climates as cold ones due to increased grid corrosion and water loss. I think it depends on the car, and how depleted the battery is what kind of car is it? My accord dies after ~5-6 miles if either the battery or alternator are not to spec. 6 volts to battery. You can change a battery in a matter of minutes almost anywhere with no mechanical knowledge at all. Most key fobs do at least have batteries that last a long time and aren’t in continuous use, so some car owners can go for years without having to worry about changing them. An alternator cannot sustain maximum output for long periods of time, it will overheat and fail. Such like a car battery will get completely discharged during the period from 2 to 3 months. Some would say it should last a good 5 years while others would claim you could very well extend it up to 6 or even 7 years. Story continues below. A dual battery setup with an isolator, for those who don’t know, is pretty much what it sounds like: connecting two car batteries to your vehicle’s alternator while adding in an isolator of some sort to keep the batteries separate (isolated!). 8° C) without first removing the negative battery lead to protect the vehicle's electronics or electrical system. Never had issues with battery in the last 6 years. Refer to OEM specifications in your Owner's manual or an OEM driven supplier such as ACDelco. In this article, you will find the best car battery charger to buy in 2019. If the charging system stopped working, the battery's charge would soon be depleted, leaving the car with a "dead battery. Cars with magnetos, yes, will run forever. , first opening up in 1958. This article will cover some additional information about what happens inside the chemistry of lithium-based batteries, like…why they die when they do, and how to avoid doing the wrong things as much as possible. What does registering the new BMW battery do? As your battery ages and loses charging capacity, the car adjusts how much it needs to recharge it to operate at an optimal level. It can be the most expensive battery or jump start of your life. Overcharging is generally worse than undercharging. Earlier this month, I read that new car sales are “collapsing” as Jalopnik put it. You may be able to drive the car a short distance, if you can keep any unnecessary electrical systems turned off. This is the EASIEST on car test for testing a BAD ALTERNATOR! If you've been wondering how to test the alternator on your car, this is the test to do. The trick is to get the car going, and jump-starting will often do the. A car battery will not last forever and has a finite life. So I asked the guys at Batteries Plus (in Cool Springs, TN) for their take on how long a cell phone battery should last. An alternator is a maintenance-free unit. So how long does it take to replace an alternator? This is a common question with an easy answer. Not only does it charge the battery, but it also supplies power to the entire vehicle when the engine is running. How Do You Recharge a Dead Car Battery With a Bad Alternator? There are two ways to recharge a battery with a bad alternator: jump starting it with another car or using a portable battery charger. Pop the hood and check the battery, and you might think you've found the culprit. That said, you may not necessarily operate your car every day. Replaced the battery 2 times in the last few week. DO NOT jump-start the car and DO NOT let any roadside assistance service install a new battery in your BMW. 1 day ago · The trauma was real for Capasso, who lived in Battery Park on 9/11, directly across from the Twin Towers the day they came down. Use caution, however, as a dying battery can only receive a charge for so long and may go completely dead at a later point despite the best efforts of the alternator. So, how long do Lithium-ion batteries last? To sum it all up, the bare minimum that most manufacturers expect from their batteries is around 3 years or 1,000 charging cycles. My recollection and notes may be in error; any errors are my fault. CarComplaints. 2 volts) to effectively charge a 12 volt car battery. With a battery having a 50 Ah capacity it would probably take over 1-2 hours to discharge the. The Family Handyman magazine explains how to test the battery and alternator to determine which one is not working properly. And then he spotted the Mission E study on the pages of a Norwegian online car magazine. If there is no such opportunity, there are other ways to do it. I’ll show you how to test yours without removing it from the vehicle and alternator replacement it if it’s bad. If your battery goes dead, have the alternator checked when replacing the battery so it doesn't happen again. The alternator's job is to recharge the battery while you're driving once the battery has started the car. It depends on the car, what electrical devices you have running in the car, and how well charged your battery is. Roughly how many miles will my car last with no alternator is a 60 mile round trip n 2 starts. If one did, then the maximum life of any battery would equal the available number of cycles and no battery would last more than 6 to 9 months. What Is an Alternator? When you go to start your car, your battery provides some of the initial power necessary to get your engine running. So just BC the light is on doesn’t mean it HAS to be replaced. Drive to an auto parts or auto repair shop test the alternator. Went to mechanic and they wanted too much so I went back to auto place and bought a remanufactured (OEM Denso was $300 and out of stock) for $115 and a new Serpentine belt. To develop current, the alternator relies on something called electromagnetic induction. Re: Alternator Dead - How Long Will Battery Last On Drive To Mechanics? I drove over 60 miles in a car with a bad alternator. Ditto and NO as more CCA may not be mandatory for starting this car. The most common problem with your car’s. Q: My minivan has failed to start a couple of times recently, because of a low battery. wondering how long a fully charged gel type battery would last running spark for a 4 cylinder car (ignore starting duties, a separate battery pack would be. 14) Do not shut off the engine of the car that was jump-started for at least 10-15 minutes (which will give the car’s alternator time to recharge the battery) and ideally, not until you get home or to a safe place. With a battery that has been that far discharged, if you just jump it and let the alternator charge it you will probably end up with a battery that dies again fairly quickly, as -D/a pointed out. A fresh battery and a malfunctioning alternator, however, will quickly leave you stranded again. These include the heater, the wipers and the lighting. The only time that the battery would supply power with the engine running is when the current capacity of the alternator is exceeded or when engine is at a very low idle. Some car owners buy and sell their cars again without ever having to touch the inside of a fob. If I drive 150 miles without lights, radio, or a/c, do you think I can make it? I might pick up a new battery at the Auto store just in case. They really do last the full ski day. I need to drive 150 miles (hwy) on a full battery without an alternator. With an average car battery price of $77. In some cars, it can last for up to 10-15 years without any repairs. Ignore this symptom, and your car eventually won't start at all. • Car radio or other auto electrical components to work intermittently, or cause a squealing noise in the engine. How long will diesel car battery last with no alternator. This is a car battery, not a deep-discharge marine battery. The reason why your battery dies is mostly to do from it sitting for too long. Your vehicle's alternator can keep a healthy battery charged, but it was never designed to completely recharge a dead car battery if the unit in question reads below 12 volts. I was surprised to make it home with all the electronics. For any car owner, this is essential information that you need to know to make sure that you won't end up with a dead car battery one morning. Driving a car will fully recharge a battery. Make sure the voltmeter reads at least 12. Just like we. The alternator can put out all the amps it wants but its main function is to provide enough power to keep the engine running. The last car that I’m likely to buy will be an electric vehicle. Because the headlights are powered by the same large battery pack as the charging ports, they last a very long time, making them suitable even for emergency purposes. I need to drive 150 miles (hwy) on a full battery without an alternator. Some would say it should last a good 5 years while others would claim you could very well extend it up to 6 or even 7 years. Namely the size of the battery and its general health. The mower battery will either have a cable end, like a car, or most will have a bolt that goes through the cable end and terminal to hold the cable on. How Long Does a Car Battery Last without Driving A new, charged car battery in good order should keep a high level of charge during two weeks without being charged from the generator. Weak or dead battery. A generator, however, can be used for charging a dead battery. I replaced the alternator and battery each more than once to no avail. However, the battery had not been fully charged. When you car battery discharges soon after shutting down the engine, it's commonly caused by one of three things: Your battery may have reached the end of its service life (often 4 or 5 years). Furthermore, if you are driving a vehicle that runs on diesel , not letting it idle can be considered a borderline criminal offense. The motor should be run long enough to determine that charging voltage is present. 1 day ago · He opted for a different car, but didn’t stop dreaming about a Porsche. Often we hear customers say that their golf cart battery charger does not work, or that it will not kick on and is showing no signs of life. , first opening up in 1958. When the car is off, the battery is not being recharged. How can I jump start my car without another car?. When I came back after the four months, I just hooked up the battery she started right up. Bad battery or bad alternator, how to tell the difference (brief version) - Auto Information Series - Duration. +1 for the Battery Tender. Q: My minivan has failed to start a couple of times recently, because of a low battery. If you’re a real car enthusiast, you might need to charge more than one battery at a time. How often do alternators need to be replaced? Alternator failure is fairly common, but an alternator can last well over 100,000 miles without incident. A battery kept in a good state of charge will last much longer than one left standing for weeks or months on end with a low state of charge. How Long Does a Car Battery Last Without Starting or Driving? So, you're going away for a long time, and want to know if your car will start when you return? Car batteries can keep their charge for 2 months or more without running, but the exact time depends on the strength of your battery and the draw of your car. If two systems fail, then it puts out only 1/3 of its rated capacity. If you are buying batteries that aren't lasting at LEAST five years, you need to get your batteries somewhere else. From your average power tool to emergency lighting systems you’ll find that NiCad batteries are the top choice in battery due to their ability to provide powerful surges of current. China had 466,101 public charging points by the end of last month, according to the China Electric Vehicle Charging Infrastructure Promotion Alliance. Can a car, once started, drive without its battery? you're fine as long as the car is running (the alternator provides all the current necessary) but you're screwed once you stop, cuz you need. If your alternator went completely dead and you had a fully charged battery, how far and/or how long could you drive your Focus before it shut down? No lights, minimal braking, no accessories and flat level highway driving at 55mph for the most part. It's a fast test and more importantly an effective test to find out if the alternator is in fact bad. A dual battery setup with an isolator, for those who don’t know, is pretty much what it sounds like: connecting two car batteries to your vehicle’s alternator while adding in an isolator of some sort to keep the batteries separate (isolated!). Enough about stimulating electrolytes. Do not allow extended unregulated charging to occur without carefully monitoring voltage levels. I charged the battery - it wouldn't charge fully, but it started. Often, when a battery fails, it's due to a fault with the alternator. An alternator cannot sustain maximum output for long periods of time, it will overheat and fail. So how long does it take to replace an alternator? This is a common question with an easy answer. Depends on the age of the battery, the cold cranking amps @ 0 degrees Fahrenheit, the number of electrical systems running in the car and weather the car is being operated during the day or night. Alternator Frequently Asked Questions. Do you want it charged 100% or enough to start it the next time. In reality, car battery is not a permanent unit, which will get exhausted after a period of time irreversibly. When It’s Time to Replace a Battery. Ive heard good and bad!. And learning how to recondition NiCad batteries is a worthwhile skill, because they are so common. The low voltage battery is basically a standard car battery, which means you’ll want to replace it every 3-5 years. It'll help you to diagnose a BAD alternator in a pinch. On the vehicles affected by this bulletin, the vehicle program has to be upgraded. The mower battery will either have a cable end, like a car, or most will have a bolt that goes through the cable end and terminal to hold the cable on. Typically, on a 6V car (1966 and older) it's mounted on top the generator (a silver box). If your car stalls, you have an issue with your alternator. A fresh battery and a malfunctioning alternator, however, will quickly leave you stranded again. How I can drive car without alternator. Under normal circumstances, starting your car will drain the battery a little, but the alternator will charge it back up as you drive. When you car battery discharges soon after shutting down the engine, it's commonly caused by one of three things: Your battery may have reached the end of its service life (often 4 or 5 years). The most popular way is to charge a car battery with another car. I've had it on a trickle charge for about a week. The station has a long history in Takoma Park, Md. When you car battery discharges soon after shutting down the engine, it's commonly caused by one of three things: Your battery may have reached the end of its service life (often 4 or 5 years). All you need to jump-start a car is a set of jumper cables and another car (a good Samaritan) with a functional battery. I would put my money on a bad alternator. Without a functioning alternator, the vehicle quickly uses up all of the battery's capacity, leaving it drained. Is this too high?, Toyota, Lexus, and Scion, 10 replies O2 sensor voltage, Automotive, 10 replies If a car sits for 3 weeks - will the battery still be charged. Most cars with 12-volt batteries have a life span of three to five years. As long as you can turn your car back on, the alternator will recharge the battery. When the car is running, the car's alternator recharges the battery. DO NOT get a Duralast!. Ive heard good and bad!. What the Battery & Alternator Do An auto battery supplies a big electric charge that travels through the starting system and turns some gears to start the car. When an alternator is going bad, the battery drains quickly. How long do tires last? Through exhaustive testing, Consumer Reports logged more than 1. It depends on the car, what electrical devices you have running in the car, and how well charged your battery is. By turning a magnetic armature inside a wire field it will produce AC (alternating current) voltage. Does this battery perform well in cold weather? It is important to have the right battery for your vehicle. Using a car battery to run a fridge will reduce the life of the battery and it will eventually fail. A car battery is rechargeable. It says on the site that for every hour the car charges, it can drive 62 miles, so I'm proposing that the car be designed with an alternator type charging system and TWO batteries each capable of going say 75 miles on a full charge. No trickle charging required, unless car has system drain, lithium doesn't lose charge by sitting unused like lead does. The STANLEY 15Amp battery charger features 3-stage charging capability (Bulk, Absorption & Top-off), a patented alternator and battery voltage check, a LCD display, and a battery reconditioning feature. After recharging, recheck the electrolyte levels after the battery has cooled, top off with distilled, deionized or demineralized water as required, but do not overfill. As such, electric bikes are still pretty niche here: they only account for 4 percent of total. How long does a car battery last? Posted on November 9, 2015 by Rick Muscoplat. According to Battery University, leaving your phone plugged in when it's fully charged, like you might overnight, is bad for the battery in the long run. Basically you should be thinking about how big a battery can you fit, and less about how small and cheap a battery you can get away with, now I know money does not grow on trees, however the larger the battery the less percentage wise you will be draining it each day, and the longer it will last for you, both in power usage (battery capacity. Battery dies. Customer drives off to Apple Valley (Way the hell out in BFE, over a 100 mile drive from dealer) gets there, goes to take wife for a drive in his new car. Story continues below. Particularly on smaller motors whose alternators charge slowly. Sondra Bernstein is the owner of the Girl and the Fig, a popular restaurant and catering company in Sonoma that was working four weddings in four different locations last weekend. Over the years, car manufacturers have learned how to minimize the possibility of a dead battery: by getting headlights to turn off by themselves, for example. So how long does a car battery last? The ‘Normal’ Lifespan of Your Car’s Battery. I've actually forgot how long I've had it in, but it's longer than the average 5 year lifespan of a car battery. The engine RPM won't really matter as anything from just above idle will have the alternator at full output. Technically, the term 'trickle charger' simply refers to a device that allows you to charge at low amperage. "It's a hard-working part," says Jeff Gunning, service manager with highly rated Addison Auto Repair & Body Shop in Denver. Get back on the road in minutes with the STANLEY BC15BS 15 Amp car battery charger. A car alternator draws power from and returns power to the car battery when the vehicle is running. It can be drained so much that it will damage the battery. You may be able to drive the car a short distance, if you can keep any unnecessary electrical systems turned off. That said, you may not necessarily operate your car every day. A complete electrical system check from Firestone Complete Auto Care will tell you whether the alternator is generating the proper amount of current and voltage, to let you know before your alternator fails. The reason why your battery dies is mostly to do from it sitting for too long. Drive to an auto parts or auto repair shop test the alternator. Preserving food has always been a strategy for surviving hard economic times without experiencing poor nutrition. all you have to do is take it out from the bottom, its tight but it will fit. Jump starting your car or truck does not turn over the engine at all. Battery isolators also have a built in voltage drop so now your starting battery and your trolling battery no longer get a full charge. The 2013 Honda CR-V has 19 problems reported for dead battery. Driving a car will fully recharge a battery. Roughly how many miles will my car last with no alternator is a 60 mile round trip n 2 starts. The batteries are specifically designed to last as long as possible. How long do tires last? Through exhaustive testing, Consumer Reports logged more than 1. For example, there is nothing you can do about your car idling while you are stuck in traffic. If your alternator is bad it won't recharge your battery while driving, meaning that the battery's juice will drain as you drive and try to start the car. Over the years, car manufacturers have learned how to minimize the possibility of a dead battery: by getting headlights to turn off by themselves, for example. How to Wreck your Battery. Most will do this for free and it will tell you what state your battery is in. The average car battery life can be anywhere from three to five years, but the exact time any given battery needs to be changed depends on a number of factors. When to replace a car battery UPDATE ON HOW LONG CAR BATTERIES LAST This is updated information on how long car batteries last because cars have been changing FAST. Both are types of generator , and are driven by a belt from the engine. The only downside I can think of is packing too many plates in the same size could make the battery less tolerant to vibrations and normal flaking with age with ordinary lead/acid type batteries,. Do you remember when you last had your battery serviced? The summer heat and winter cold take a big toll on your car's battery, which could wind up leaving you stranded. In some cars, it can last for up to 10-15 years without any repairs. Once the car is running, the alternator sends current back to recharge the battery as you drive. This is a routine for many diligent and responsible car owners, but there are still those who believe there is nothing to be done about their car. A battery cycle is measured by one full charge of 0 to 100. Benefits of Alternator Repair Without a functioning alternator, your car won’t start, so it’s an essential part of the engine. Originally Posted by powder11 if you have to resort to taking advice from the nitwits on this forum, then you're doomed. Six Ways Portland Can Kill the Car e-scooters and other battery-powered transport offer means to get around the city without breaking a sweat. I did a power draw test multiple times only to find nothing drawing power. Manufacturer Communication Number: SCI19-20. A dead battery is your initial sign that something could be wrong with the alternator. Charges AGM, GEL & WET 12V batteries. To check an alternator, pop your vehicle's hood and hook up a voltmeter to the car's battery by connecting the red lead to the positive terminal and the black lead to the negative terminal. Using the alternator to deal with such a depleted battery can actually damage your alternator. PG&E may shut off. An alternator is a maintenance-free unit. I hope this helps people avoid wasting money on parts. Bosch, DeWalt, Hitachi, Makita, Milwaukee, and Ridgid all warranty their Lithium-ion batteries for 3 years. If you are driving on a motorway, you should be able to charge your car battery in 30 minutes. If they are dim, that indicates the lights are running off the battery and that little or no charge is being produced by the alternator. Consider this fact: Bad alternators are the #1 cause of dead car batteries that leave millions of motorists stranded every single year. In terms of feeding electrical current back into the battery, two basic approaches were offered: (1) create a new battery to trickle charge the car battery, and (2) develop a means of using the vehicle's alternator to charge the battery. Quick charging could eventually shorten the cycle life of the battery. A generator, however, can be used for charging a dead battery. To find what amperage your alternator is, you must first understand the relationship between volts and amps. I need to drive 150 miles (hwy) on a full battery without an alternator. A new car for first time drivers should be cheap, easy to drive a. What I found was an initial voltage of 8v which slowly lowered to 6. A car battery should last about six years, but like most car parts, that all depends on how you treat it. Do not confuse the higher voltage reading seen right after charging with a proper voltage reading taken under a slight load. If you drive the car 30 minutes every week or two at a minimum, and the electrical system in the car is functioning normally, that should keep the battery charged. How can long charging cycles be avoided and the range of electric vehicles extended? This is the most annoying and frustrating problem every car brand at present is facing and the scarcity of public charging stations. Checking Alternator Voltage Output with a Multimeter. If you are a Toyota Prius owner, you would want to know how long does a Prius battery last. They are very wrong, of course. com, says cars that sit on a lot for too long can develop a variety of problems a consumer should look out. (bad alternator) Battery gauge went low and engine stalled after about 5 minutes (no lights or accessories on). They also have up to 18% more starting power which gives that extra confidence on cold mornings when batteries are strained the most. To be more precise, chemical reactions inside the battery will become inefficient for production of electricity. How often do alternators need to be replaced? Alternator failure is fairly common, but an alternator can last well over 100,000 miles without incident. When the battery runs out of charge the car will no longer start, and there’s not much you can do other than repair the alternator or have it replaced. A problem in an electrical system is affecting battery power. You can test the battery with a voltmeter, and most auto stores have the facilities to check a suspect battery, usually free of charge. How long does this battery last without losing its charge?. Allow the boosted car to run for at least ten minutes to partially charge the battery before driving off. *Based on GoPro engineering testing. Re: How long will it run with a bad alternator I have run hours and hours off of just the battery after losing the alternator (bearings - what a racket it made) in a car. If you disconnect the battery and the car conks out, you don't know if it conked out due to insufficient alternator current, or whether the resulting transients caused your ECU (the car's computer, which controls fuel mixture, timing, and much more) to spit out bad data, shutting down the car. All I did was fill the tank all the way, give it a good wash, and disconnect the battery. DO NOT jump-start the car and DO NOT let any roadside assistance service install a new battery in your BMW. I have a 2008 Honda civic hybrid and my IMA battery light has been on for two years and still hasn’t gone out. However, the battery had not been fully charged. PLEASE NOTE: Disconnecting the battery may result in the loss of setting information in the receiver, clock and other devices in your car. Running the radio for a long amount of time without your car running can drain your battery short term. Depending on what you are driving is how long it will run like that. Because of this, you can often jump start a car with a failing battery, then drive it to the auto parts store to get a new one. The battery, alternator and fuel pump aren’t the only culprits when your car dies off you while driving. When a car alternator is going bad, drivers will notice a reduced capacity for electrical use, often resulting in things like dim headlights. Thanks for your help. It helps kick-start the alternator into working at idle speeds when you first start the car, and it tells you if the alternator is putting out less voltage than the battery has in it, indicating a problem. A car battery should last about six years, but like most car parts, that all depends on how you treat it. Alternator wasn't charging at all. When battery level is low (11. CarComplaints. See how you can find the source of the problem here. So how long does a car battery last? The ‘Normal’ Lifespan of Your Car’s Battery. You will do much better in the long-term if you use a proper battery charger. Today, you risk frying every electrical device in your vehicle. However, if the car has an alternator, disconnect the battery terminals beforehand: otherwise some alternators - generally the older type - can be damaged. The low voltage battery is basically a standard car battery, which means you’ll want to replace it every 3-5 years. Ignore this symptom, and your car eventually won't start at all. A series of diodes (6) convert AC to DC voltage which is needed for the car electrical system and the battery. So how long does a car battery last? The 'Normal' Lifespan of Your Car's Battery. Divide this by 50 watts, and you get 9. The alternator charges the battery and runs the electronics in the car, including the 12 volt resistance electric heater. It's rear wheel drive (RWD) based, and will have a range of up to. except sometimes thr battery light will go off and will charge but. Test Your Charging and Electrical System. If your car continues to run with only the positive terminal connected, your battery is bad and won’t hold a charge. Does A Car Battery Charge At Idle, Or Does The Engine Need To Be At Higher RPMs Finally got my range rover started, left it idling for about 40 minutes, drove it around for about 15, and tried to start it — barely started. 25 miles should be fine. If you are driving on a motorway, you should be able to charge your car battery in 30 minutes. Multiple discharge/recharge cycles shorten any battery's life and using electronics in the. If you have an alternator and are using the factory style indicator light on your dashboard, it is a pretty helpful thing. When to replace a car battery UPDATE ON HOW LONG CAR BATTERIES LAST This is updated information on how long car batteries last because cars have been changing FAST. When the alternator can not produce enough electricity to keep the electrical systems running and the battery will have to be used to take up the slack. I would not be surprised if the old motors developed a humming sound back in 1910. If your alternator is failing, there's a good chance that you'll need to replace it. 75 volts and 100 amps. He woke up four days later in a different hospital, with a. if you dont have the ac compressor or power steering pump then you can dont have to take apart anything. But the big battery is still going fine. Advice please. Often, when a battery fails, it's due to a fault with the alternator. Granted, it may cost a little extra to replace a car battery before it has run its course. The 2013 Honda CR-V has 19 problems reported for dead battery. How To Tell When Car Battery Is Dead Battery is the life of a car. Can a car, once started, drive without its battery? you're fine as long as the car is running (the alternator provides all the current necessary) but you're screwed once you stop, cuz you need. Bad battery or bad alternator, how to tell the difference (brief version) - Auto Information Series - Duration. How do I retrieve or unlock codes for my Honda radio and/or navigation system? What are the number of miles or a range for oil change intervals? Why does my brake pedal sometimes feel like it sinks when I'm holding my car stopped at a light?. However, it is important for you to be able to understand how long you can expect your car radio battery to last. When the car is running, the car's alternator recharges the battery. An average car battery has a lifespan of at least four years, but many give up before that while a rare few go even beyond five years without a problem. But how long can an alternator last from the time when the car is new? What factors contribute to this auto part's longevity? Luckily, there are many ways to learn more about this problem and other car part information. I would not be surprised if the old motors developed a humming sound back in 1910. When to replace a car battery UPDATE ON HOW LONG CAR BATTERIES LAST This is updated information on how long car batteries last because cars have been changing FAST. If there is a power point handy, the battery can be left in the car, so long as the charge rate is only 3 or 4 amps. Under normal circumstances, starting your car will drain the battery a little, but the alternator will charge it back up as you drive. As long as you can turn your car back on, the alternator will recharge the battery. I had a dead battery in May, replaced it, found the new one soon dead in June, determined the alternator was the problem, replaced the voltage regulator in July, and ran fine for three weeks. That’s why it’s so important to know when to start considering a car battery change, as well as what you can do to extend its lifespan. And after each time, the car started in the first attempt. You can drive with either just an alternator or a battery. A car battery is rechargeable. The biggest variable in this equation is you, as in most situations you can make the difference between a battery that lasts only months and one which will last for years. Here’s how you can avoid it and what to do if your battery does go flat. See how you can find the source of the problem here. It's rear wheel drive (RWD) based, and will have a range of up to. This is a car battery, not a deep-discharge marine battery. On average, a car battery lasts between two and five years. SAFE UL APPROVED WIRING-DOES NOT BURN - Have the Warmth in a SAFE way. Is this enough to help electric mobility make the breakthrough into the mainstream?. An alternator is a maintenance-free unit. Comments: HI my alternator was replaced but still not charging battery. Using my Electrical Engineering degree and my understanding of alternators vs. Charging to maximum capacity might give you the most possible use for that one charge, but it is one of the worst things that you can do to lithium batteries. If your alternator went completely dead and you had a fully charged battery, how far and/or how long could you drive your Focus before it shut down? No lights, minimal braking, no accessories and flat level highway driving at 55mph for the most part. When the battery runs out of charge the car will no longer start, and there's not much you can do other than repair the alternator or have it replaced. This involves extra cables to the engine and often voids your warranty. How to Restore a Car Battery If you have an old car battery that has a low voltage output, it might be time to consider a small restoration project. Namely the size of the battery and its general health. High powered amplifiers for car stereos are often the culprits of battery drain. But these clues won't last long, because a partially charged battery usually has enough power to operate things like headlights and power windows, but will fail the next time you try to start the vehicle. Depends how big the battery is, or how many electrical devices the car's got, not long I wouldn't think.