How Long To Leave A Car Running To Charge Battery

Having your ATV battery not turn over can be a really terrible time. I personally do not like running my stereo when the car is off and i do not recommend it to anyone. Car battery chargers run off AC power and provide 12V DC at relatively low voltages, which is the best way to charge a completely dead battery. Once a car battery has been drained below a state of full discharge, the damage has been done. Like for a 2amp charge, it may take about 24 hours to charge a 12 volts battery while a 3 amp charge will take a lesser time that is less than a day to fill a 12 volts battery. Either hook the charger directly to the battery or maybe run some 8GA power cable (car amplifier wiring kits could be used) directly to the charger area. If you don't have a multimeter to tell you the voltage of your battery, you can do a test of your electrical system by starting the car and turning on the headlights. You can obtain the battery charger at any workshop where you can borrow or buy it. you could start your car periodically to refresh your battery. But how long should I leave it on, I don't want the car dying if the testers are testing the lights with motor. You can charge a battery with another car if this car is running but it'll take time and probably won't get to the maximum charge. He managed to get it going again with a jump start, but he wasn't sure how long he'd have to drive to ensure that the car would have enough battery to start again later. For instance, if a battery would take about 12 hours to become fully charged, it will take about 7 hours to charge it to about 90%. It keeps the electronics going and battery charged. Car batteries provide a vehicle's life force. A trickle charger works by charging your battery at a rate similar to the rate at which it discharges. how long do i leave car running after it's jumped? it died yesterday after i left the lights on. On average, car batteries last between 2 and 5 years. How long to Charge a car Battery at 2 amps. Charging a car battery is usually simple, but there may be times when you don't have access to the necessary materials or don't feel comfortable attempting to recharge it on your own. How long can a car sit before the battery dies May 14, 2017 By Richard C. That'll do it. Trick chargers usually run at around 2 amperates and it can take at least 24 hours to get your 48 amp battery up to an acceptable level, depending on the. Although it costs as much as a new battery, it is good for long-term applications. How long would a 12v coolbox take to drain a battery? fan that i want to leave in the car running via the 12v socket when the cars off. Follow the directions and fully charge the phone before using it. I'm not really looking for exact figures here, but more if it's 5 minutes, or an hour. Here at HOT ROD we untangle the mystery of why AGM batteries are so hard to charge and show you some simple steps on how to charge them before you toss them. The car with the dead battery will need to be charged for 8 hrs with a battery charger, but as long as the battery is good a 1hr run will likely allow the car to start again. This spring I was trying to charge a different battery and it would not charge up. A trickle charger provides a more sustainable charge than a quick jump start. The vehicles battery will hold a charge for a while, but not forever, especially if you're using the radio, heater, wipers and head lights, this will drain the battery quick and leave you stranded, so don't wait to have the battery checked if the warning light is on, if it's on, get it checked ASAP! Signs of a Weak Car Battery. Step 8: Start the dead vehicle. A battery charger is a device used to supply energy into a rechargeable battery by driving an electric current through it. When an alternator is not pushing out enough voltage, which should be between 13. Which means you can freely leave that USB charger plugged into the car's 12V jack if you want, provided you don't plan on putting the car in storage for around 117 days. It can be a serious inconvenience to find yourself with a dead battery, but recharging one can require very little in terms of tools or mechanical experience. How long does it take to charge a car battery? Battery charging times can vary from make and model, and can differ depending on the batteries amps and charger that you're using. Battery Charger: Battery chargers plug into a normal 110 volt household outlet, and they charge your car battery while it is not connected to your car. When the dead car is started, check the battery light on the instrument panel. Remember the main causes and some maintenance tips to avoid a battery failure and an embarrassing situation. It is safe to leave the battery in the car while charging when it has a power point and about 3 to 4 amps in charge. Leave your laptop plugged into the wall socket whenever possible. Battery size will not necessarily. Need to jump it, then leave it running to build up enough charge to fire up when it's collected for an MOT next week. Leave the car overnight and test before you start the car in the morning to get a really accurate gauge of the health of your battery. I had a 2amp trickle charger on my ferrari and forgot after 4weeks a big booooom at 6am i went in to the garage and there was acid all over the batterie compartment the side wall of the batterie was missing ,just for your info backing soda is the only thing to get rid of the acid i went to the store and got 10packs of it put it allover the batterie compartment let it soak up and hose it down. On average, car batteries last between 2 and 5 years. 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. If you are driving on a motorway, you should be able to charge your car battery in 30 minutes. How long can you leave your car headlights on until the battery dies? First Arsian to run their car battery down wins! most modern cars will also shut off power if you leave something on. How long to Charge a car Battery at 2 amps. 1 is right in that ballpark. In an average car, how long can you leave your headlights on before it drains your battery? I know I've drained my car battery down to 11V on accident, running a. take a trip up to the mountains, down the beach, off to whoop whoop, whatever. 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. If using your car battery, be sure to run the engine for approximately 10 minutes every hour to keep the battery charged. How Long To Charge A Car Battery At 2 Amps? Charging times for a battery can vary by a few different factors. He managed to get it going again with a jump start, but he wasn't sure how long he'd have to drive to ensure that the car would have enough battery to start again later. Leave the car running for at least fifteen minutes to 1/2 hour after you start it to allow the car to charge the battery. After that drive the car at least 5-10 km and let them start for 15-20 minutes. Car battery chargers run off AC power and provide 12V DC at relatively low voltages, which is the best way to charge a completely dead battery. See our full line of battery chargers at NOCO Genius Multi-purpose Battery Chargers. Trips of 3 weeks or longer, I would leave it plugged in at home. The final type of charger is a smart charger, which monitors the battery's charge progress. Driving it might not charge a car battery either. How long does a car last after it receives a jump-start because the battery is too discharged to start the car? It's a question often asked and we've read some absolutely terrible advice, such as driving a car for 10-15 minutes, which is not a good idea. My car battery is dead, how long should i let my car run to charge the battery? My car has been off the road for quite some time. BU-405: Charging with a Power Supply. With these tips and tricks, though, you can help keep your battery charged all winter long! Park your car in the garage, away from the wind. One of the best cars on the earth, hybrid cars has two main components to consider-an electric motor and the battery. Either hook the charger directly to the battery or maybe run some 8GA power cable (car amplifier wiring kits could be used) directly to the charger area. No running the engine is the best way and only way to charge the traction battery short of taking it out of the car and bench charging it. Safest method in my opinion. If left connected to the charger, (with the mains power switched on) for a long period of time (2 weeks plus) then the charger will keep the battery charge topped up. 4 volts and let it go no lower than 12. Dead Battery? Don't worry, you can bring that battery back to life if you charge it properly. Dear Car Talk: We have a 2004 GMC pickup, which we rarely use. The charge used in charging the battery will also dictate how long the battery will take for it to be full. Nobody can tell how long you need to drive get the battery fully loaded again, as this depends on state of (old might longer then could either leave car running driveway, or take it for a spin 15. Start the car with the good battery, and leave it running for 2 to 3 minutes before attempting to start the disabled car. The battery or 'power' light comes on when there is a problem with the car's charging system, and tells you that the car is running on battery power alone. When on a longer vacation in Europe, I leave the charger permanently on so battery is not being discharged when the car is not being used for weeks. Traction batteries, (also called deep cycle or golf cart type), should be used in order to be able to handle the repeated discharge/charge cycles that are required. A friend is able to keep an eye on the car, and turn the engine over periodically to maintain the battery charge. There are several ways to charge a car battery without charger. 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. But if we leave our '96 Chrysler van, which we have parked due to transmission issues, with the battery connected, we have to start it every couple of weeks or it won't be able to start. A 'surface charge' is all you have on brand-new batteries, otherwise, and as demonstrated, it won't last long! Charge the battery for 2 - 4 hours at 15 - 20 Amps, and you will be able to drive 150 - 200 miles without A/C. 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. If using your car battery, be sure to run the engine for approximately 10 minutes every hour to keep the battery charged. If your car does start, let it run for a few minutes to help charge the battery further. 2C charge rate. If the engine is running, the alternator is producing power for the car to use, so the battery basically just sits back and maintains it's charge. See our full line of battery chargers at NOCO Genius Multi-purpose Battery Chargers. If you've recently been for a drive, the battery is likely to give a higher reading than the resting voltage, and so could be misleading. Then it will theoretically run your stereo for 80/2 = 40 hours before it completely dies. The worst that can happen is that you come back to a flat battery and have to jump start the car. I left the map light on since saturday night and the battery is dead. Keeping this mind, here's how to safely use a car battery charger:. The general rule of thumb is C/5. At idle, the alternator will be turning, but it likely will not be producing the maximum current available. So, not much, really. If it's about 5 years old and has been dormant, it likely will need replacement. amperage) of the battery charger. After charging the failed battery for at least 20 to 30 minutes, turn off the engine. Up to a month If you're not sure the battery will last, and you have access to power, use a 'smart charger'. Then it will theoretically run your stereo for 80/2 = 40 hours before it completely dies. It runs great, but the battery died, i jumped started it, let it run about 10-15 minutes, the inspection is up so i cant run the car on the road, but i did drive it around my parking lot for a few minutes. An alternator needs power to. My charger has a discharge option and a store option but I don't know if I can put a charged battery on the charger and select store. I now use a photocell charger that I place on the dashboard. ← Battery Charging 3 Ways To Revive A Dead ATV Battery. how long should that take before it's ok to start on it's own again. If it's about 5 years old and has been dormant, it likely will need replacement. He says if you want to charge your car battery up decently, go on a long drive. battery isn't even a year old. The length of runtime that the battery will provide largely depends on the kind of device you are running. Battery died. Safest method in my opinion. Trick chargers usually run at around 2 amperates and it can take at least 24 hours to get your 48 amp battery up to an acceptable level, depending on the. I hooked it on and it took 3 days to charge the deep cycle. Do Charge Battery Completely: Be sure to leave the cordless tool battery plugged in until it's completely charged. Like for a 2amp charge, it may take about 24 hours to charge a 12 volts battery while a 3 amp charge will take a lesser time that is less than a day to fill a 12 volts battery. If you've recently been for a drive, as long as the charging system is working correctly, the battery is likely to give a higher reading than the resting voltage, and so could be misleading. Charge a car battery after jump start How to charge a car battery after jump start. The two charge controllers that you recommend are really just replacements for the battery isolator that I was going to install, but your alternatives are definitely worth considering. A Long drive it is. In the 2011 Nissan LEAF, there is a Long Battery Life setting that tells the car to stop charging at 80 percent. As facade says at idle you do need to let it run for a long while or actually end up 4 dec 2007 how i leave the car on, and is safe means it'd take 11 hours charge down 65 amp hour battery 6 2000. In reality if the battery is still starting the car or truck then you probably have at least 50% charge and likely more. Once the booster car is. A car uses quite a lot of electricity to work the ignition and other electrical equipment. Driving it might not charge a car battery either. Basically my question is, when i try and start my car can i leave the charger plugged in to the mains and connected to the car battery, as when i disconnect it it resets my alarm system and that seems to drain any charge that i have managed to build in the car battery. Leaving it running for longer than that would bring additional pollution to the air we all breathe. battery isn't even a year old. Below 12 Volts — Use a Dedicated Charger. But if we leave our '96 Chrysler van, which we have parked due to transmission issues, with the battery connected, we have to start it every couple of weeks or it won't be able to start. Maintain your battery between 10% and 90% charge and your car will have a long happy life. And when an engine runs, the alternator also runs, which charges the battery. If you store your car for the winter, or for other long periods, it's important to make sure that your car battery is properly cared for. Once the car being charged starts, it should be kept running for at least 20 to 30 minutes for the alternator to have enough time to recharge the battery. 85Ah at a 5. From time to time, drivers unintentionally leave the lights or radio running on the car and let the battery run dead. He managed to get it going again with a jump start, but he wasn't sure how long he'd have to drive to ensure that the car would have enough battery to start again later. how long do i leave car running after it's jumped? it died yesterday after i left the lights on. To be sure, you can test the battery with the voltmeter. Some day a well meaning mechanic or naive jump start specialist will attempt to disconnect your battery with the engine running. How long will battery last without alternator? This is the third month of my alternator and battery woes with the SDL. how long should i let the car run for until the alternator charges it enough to start again? how long to run engine after a jump? | San Francisco - Yelp. That'll do it. Q: If I leave my Mobility Scooter on charge for a day or more, can it damage the batteries? A: No, the charger will switch itself off internally once it is fully charged. Note that running ANY battery until it's completely dead is very bad for it - It won't last long in that kind of service. Nobody can tell how long you need to drive get the battery fully loaded again, as this depends on state of (old might longer then could either leave car running driveway, or take it for a spin 15. A typical tender will charge a 12-volt battery to 14. A battery that has been heavily discharged for a period of time would benefit best by a long, slow charge, especially if sulfated. It depends on the car, what electrical devices you have running in the car, and how well charged your battery is. How long does it take to recharge a battery from one car engine start? « on: 07/05/2014 15:15:47 » when I start the engine of my car, clearly some energy (units = current x time) is withdrawn from the battery. you could start your car periodically to refresh your battery. 6; any lower than that after the initial charge up and there may be a problem with the battery or the. I couldn't easily find how long the battery takes to recharge on DC but it says 7-8 hours from the wall so let's assume that for DC too. For instance, if a battery would take about 12 hours to become fully charged, it will take about 7 hours to charge it to about 90%. A quick reply is helpful if anyone knows, as i need to get to work!!!!. If you value your car and your money, don't let him! The man from the road service thinks he's being helpful. Multiple discharge/recharge cycles shorten any battery's life and using electronics in the. Idling a dead battery to recharge it won't work. Or you can use a battery charger plugged into an AC outlet to recharge the battery. Can You Recharge a Car Battery that Ran Out of Water? Recharging a car battery once it has run out of water is possible, but it may not continue to hold a charge. It should turn on. 25A constant current load. The battery can be recharged by running the automobile motor, or a gas generator, solar panels, or wind. I believe that keeping the battery fully charged at all times is the single most important factor contributing to a long battery life. On a standard small car battery i would say you could have it running for 30 minutes safely at moderate volume. If you've recently been for a drive, as long as the charging system is working correctly, the battery is likely to give a higher reading than the resting voltage, and so could be misleading. After that drive the car at least 5-10 km and let them start for 15-20 minutes. One is how much charge the battery has, and two is how many amps you are charging it at. How long would a 12v coolbox take to drain a battery? fan that i want to leave in the car running via the 12v socket when the cars off. Now, the proper type and amount of batteries must be selected. For a 12-Volt battery: 100 Amps DC x 3 hours = 300 A. A 'surface charge' is all you have on brand-new batteries, otherwise, and as demonstrated, it won't last long! Charge the battery for 2 - 4 hours at 15 - 20 Amps, and you will be able to drive 150 - 200 miles without A/C. Ideally it needs to go on a bench charger, the alternator on a car only does a shallow charge and if you leave the lights on or it has difficulty starting one day the battery will go flat very quickly,whereas a bench charger will give it a deep cycle charge, that said it will charge sufficiently to restart the car in about 20-30 minutes, better to drive it than just leave it idling as it will. So, not much, really. If the alternator dies, it's not "powering" the system anymore, leaving the poor battery as the only place for the power-using components to get power. Maintain your battery between 10% and 90% charge and your car will have a long happy life. A DEAD car battery can cause troubles to the owner anytime, anywhere. Today, most cars have a single maintenance-free 12-volt acid battery (in the photo). Traction batteries, (also called deep cycle or golf cart type), should be used in order to be able to handle the repeated discharge/charge cycles that are required. Battery size will not necessarily. The topic 'Does leaving a car to run actually charge the battery…' is closed to new. Long time Tesla owner Bjorn Nyland did an experiment with this a couple of years ago, leaving his car for almost a month in Norway while he was on vacation to log how much range it lost while he was gone. I charged them intending to use them but now I am not sure when I will be running the car. get a camping battery. Charging a car battery is usually simple, but there may be times when you don't have access to the necessary materials or don't feel comfortable attempting to recharge it on your own. This is solely dependent on the amount of. Bringing a Car Battery Back from the Dead: A Ch00ftech Halloween Tale Posted on October 30, 2012 by ch00f Yesterday, I hopped into my car to take a drive to Goodwill for some Halloween costume parts when I noticed that my car's battery was dead. Battery chargers have the same working mechanism-they supply an electric current to batteries so the cells can feed on these currents and regain energy. Because the alternator is bad, you will not have much time before the battery drains again, so it is best to get to a dealership or auto parts store to have the alternator replaced. Do not drive the vehicle until the battery dies; lead-acid batteries will not last as long if you completely discharge them. Battery Charger Frequently Asked Questions (FAQ) FAQ About Battery Settings. At idle, the alternator will be turning, but it likely will not be producing the maximum current available. See our full line of battery chargers at NOCO Genius Multi-purpose Battery Chargers. My car battery wont hold charge after sitting overnight? Assuming you didn't leave the headlights turned on!; this is caused by a faulty battery or a drain on the battery. This is the amount of time the battery will supply the vehicles electricals so the vehicle can continue to run in the event the charging system should fail. Yeah, I've been thinking I'll get one. The topic 'Does leaving a car to run actually charge the battery…' is closed to new. Although it costs as much as a new battery, it is good for long-term applications. No running the engine is the best way and only way to charge the traction battery short of taking it out of the car and bench charging it. Once the engine is running, the alternator take charge and provide power for the entire car's electrical system. Debunking Battery Life Myths for Mobile Phones, Tablets, and Laptops Chris Hoffman @chrisbhoffman Updated July 12, 2017, 1:21pm EDT Batteries need to be cared for properly — they're a critical part of our mobile devices and battery technology hasn't advanced as fast as other technologies. I believe that keeping the battery fully charged at all times is the single most important factor contributing to a long battery life. I don't have it, because I drive it every day. As long as you follow the instructions on your battery charger and take all the necessary safety precautions you will not have any problem. A 'surface charge' is all you have on brand-new batteries, otherwise, and as demonstrated, it won't last long! Charge the battery for 2 - 4 hours at 15 - 20 Amps, and you will be able to drive 150 - 200 miles without A/C. Leave the car overnight (preferably longer) and test before you start the car in the morning to get an accurate gauge of the health of your battery. I hooked it on and it took 3 days to charge the deep cycle. Dear Car Talk: We have a 2004 GMC pickup, which we rarely use. A typical tender will charge a 12-volt battery to 14. If you see that your battery needs this, it may be best to do it before you charge. Check the battery as explained earlier, and maybe get a good mechanic to run a diagnostic on the rest of the car. Battery cold or sulfated, reduce rate and charge longer. Make sure you use a charger with the correct amperage for the battery you need to charge. But if the car isn't being run often, the battery will slowly drain over time and soon won't have enough juice to send the necessary voltage to the starter. Batteries can be charged manually with a power supply featuring user-adjustable voltage and current limiting. The final type of charger is a smart charger, which monitors the battery's charge progress. A car phone charger will change your road trips for the better, but if you use yours wrong, you might drain your car battery or damage your phone battery. Because the alternator is bad, you will not have much time before the battery drains again, so it is best to get to a dealership or auto parts store to have the alternator replaced. Bringing a Car Battery Back from the Dead: A Ch00ftech Halloween Tale Posted on October 30, 2012 by ch00f Yesterday, I hopped into my car to take a drive to Goodwill for some Halloween costume parts when I noticed that my car's battery was dead. A quick reply is helpful if anyone knows, as i need to get to work!!!!. get a camping battery. It really depends on the battery charger and how long it's been running and how hard it has to work. Keep an eye on your battery's condition and charge it regularly. Dead Battery? Don't worry, you can bring that battery back to life if you charge it properly. When storing a battery, be sure to partially charge it. It should turn on. After charging the failed battery for at least 20 to 30 minutes, turn off the engine. The topic 'Does leaving a car to run actually charge the battery…' is closed to new. Maintain your battery between 10% and 90% charge and your car will have a long happy life. i just got a shulze 330 today and the instructions say do not have the engine running while you are charging. A PHEV has an electric motor and a rechargeable battery, but it also has a gasoline engine. 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. However, if the battery in the dead car has been dead for a long time, you may need to let the booster car idle a bit to get some charge into the dead car's battery. A faulty or unreliable charging system can also drain the battery while the car is running. it could be that you left a light on when the car was not running and it drained the battery down. When the charge given by the battery exceeds that which the alternator returns, there is a slow drain that eventually results in a weakened or dead battery. I have a Range Rover 4. How Long Do You Leave a Battery for a Full Charge on a Battery Charger? A battery can be charged in two ways, which can last a maximum of 12 hours. How long does it take to recharge a battery from one car engine start? « on: 07/05/2014 15:15:47 » when I start the engine of my car, clearly some energy (units = current x time) is withdrawn from the battery. Safest method in my opinion. If you are storing the car battery you should put it on a float charger, or charge it every 2 months to keep it from sulfating. Battery life is rated in cycle times with a depth of discharge percentage. It can be a serious inconvenience to find yourself with a dead battery, but recharging one can require very little in terms of tools or mechanical experience. The last time my alternator went out my car made it about 30 minutes before it died, and every progressive jump only lasted 5ish minutes. If your appliance needs a steady supply of power for a long period of time, that can put a heavy load on the battery. In the 2011 Nissan LEAF, there is a Long Battery Life setting that tells the car to stop charging at 80 percent. I was wondering how long you can store a charged 3s 5000 mah battery. Leave the car overnight (preferably longer) and test before you start the car in the morning to get an accurate gauge of the health of your battery. In an emergency situation or in other unusual circumstances, it's possible that you might want to run a household fan off a car battery. Only at www. This is solely dependent on the amount of. Use a Backup Battery Charger If your car is not equipped with a USB port, you can charge your Garmin with a backup battery charger. Leave the car running for at least fifteen minutes to 1/2 hour after you start it to allow the car to charge the battery. However, conscious of the fact that starting the engine itself requires power, I would like to know how long I should have her turn the engine over for, so as to charge the battery more than is taken from it in starting the car. The standard car battery is not a deep cycle battery and therefore cannot handle this type of battery drain problem for long. Basically, it is the alternator that charges the battery itself. An electric scooter can have a pedal assist mechanism which allows you to pedal the electric scooter for maximum performance and. You can charge a battery with another car if this car is running but it'll take time and probably won't get to the maximum charge. Bringing a Car Battery Back from the Dead: A Ch00ftech Halloween Tale Posted on October 30, 2012 by ch00f Yesterday, I hopped into my car to take a drive to Goodwill for some Halloween costume parts when I noticed that my car's battery was dead. Below 12 Volts — Use a Dedicated Charger. Also, the terminals and battery posts need cleaning regularly. When picking up the car, it won't start (sat on the lot too long and had a dead battery) Salesman jump starts car and says you live a long ways off, the alternator will charge the battery. All you can do is check the electrolyte and put it on a trickle charger. how long do i leave car running after it's jumped? it died yesterday after i left the lights on. He says if you want to charge your car battery up decently, go on a long drive. What's more, in some cases, leaving the engine running while the car is not moving can be dangerous for the passengers. you car alternator probably puts out 60 Amps, so if you assumed that the car used 3A for running and the battery charging is less than 100% efficeint, then running it at around 2000rpm (cruising speed on the road) woudl charge it fully in one hour. The worst that can happen is that you come back to a flat battery and have to jump start the car. amperage) of the battery charger. Or you can use a battery charger plugged into an AC outlet to recharge the battery. My car battery wont hold charge after sitting overnight? Assuming you didn't leave the headlights turned on!; this is caused by a faulty battery or a drain on the battery. After running the motor for a while, turn the car off. An electric scooter can have a pedal assist mechanism which allows you to pedal the electric scooter for maximum performance and. There are several ways to charge a car battery without charger. I think it was running at 10 amps and it has a. At its most basic, a car battery is constructed of alternating plates of dissimilar metals, usually lead and lead oxide (Pb and PbO 2 ), in an electrolyte bath, usually sulfuric acid (H 2 SO 4 ) in water. 85Ah at a 5. A running engine under the hood is already producing high levels of heat. Battery would not charge. One is how much charge the battery has, and two is how many amps you are charging it at. Use a Backup Battery Charger If your car is not equipped with a USB port, you can charge your Garmin with a backup battery charger. Start the car with the good battery, and leave it running for 2 to 3 minutes before attempting to start the disabled car. Long term car storage can wreak havoc on your battery. Because the alternator is bad, you will not have much time before the battery drains again, so it is best to get to a dealership or auto parts store to have the alternator replaced. Since this was a fairly new battery and under warranty, da spouse called up Subaru to see if we could get a new one but no they wanted to test it in car. (It starts in about 1-2 seconds). On average, car batteries last between 2 and 5 years. How long does it take to recharge a battery from one car engine start? « on: 07/05/2014 15:15:47 » when I start the engine of my car, clearly some energy (units = current x time) is withdrawn from the battery. Trips of 3 weeks or longer, I would leave it plugged in at home. Or you can use a battery charger plugged into an AC outlet to recharge the battery. It keeps the electronics going and battery charged. The slow charge, often referred to as the safest technique, requires at least 12 hours to complete the charge and a fast charge is completed in less than 12 hours. All you can do is check the electrolyte and put it on a trickle charger. this depends on how old the battery is and the state of electrolyte inside the battery. The vehicles battery will hold a charge for a while, but not forever, especially if you're using the radio, heater, wipers and head lights, this will drain the battery quick and leave you stranded, so don't wait to have the battery checked if the warning light is on, if it's on, get it checked ASAP! Signs of a Weak Car Battery. My charger has a discharge option and a store option but I don't know if I can put a charged battery on the charger and select store. If you can't get it to restart, this is a sign the alternator is doing its job of keeping the battery working while the motor is running, but the battery isn't retaining the charge when the alternator has stopped. A car uses quite a lot of electricity to work the ignition and other electrical equipment. I don't have it, because I drive it every day. How long can you drive a car with a broken alternator with a freshly charged battery? [more inside] I picked up a POS car a month or so ago because my previous car got destroyed in a freak snow/hail/rain storm/flood (in L. Battery life is rated in cycle times with a depth of discharge percentage. how long it takes to charge the car battery will depend on the capacity. If you've ever gotten slapped by a gust of cold wind, you have a general idea of how your car feels in the cold too. It takes less than 20 min to fully charge it. how long can I safely run radio with car "off"? will only run, as needed, to charge the battery. How long would a 12v coolbox take to drain a battery? fan that i want to leave in the car running via the 12v socket when the cars off. A car battery should last 6 or 7 years even with heavy charge/discharge cycles. Battery cold or sulfated, reduce rate and charge longer. Once the mower is going, just leave it running for a hour or two, and the mower's alternator, which functions like a battery charger, will do the rest. Be mindful however, that there is also a 12 volt battery used for normal startup and accessories. My charger has a discharge option and a store option but I don't know if I can put a charged battery on the charger and select store. At idle, the alternator will be turning, but it likely will not be producing the maximum current available. i just got a shulze 330 today and the instructions say do not have the engine running while you are charging. Yeah, I've been thinking I'll get one. How long it takes to recharge a dead car battery depends on how discharged the battery is, and the current rating (i. Bringing a Car Battery Back from the Dead: A Ch00ftech Halloween Tale Posted on October 30, 2012 by ch00f Yesterday, I hopped into my car to take a drive to Goodwill for some Halloween costume parts when I noticed that my car's battery was dead. The charger may get hot from time to time depending on how far the batteries were discharged and how long it takes to bring the batteries back up to 100% charged. Battery Charger: Battery chargers plug into a normal 110 volt household outlet, and they charge your car battery while it is not connected to your car. Safest method in my opinion. However, there should be no problem using a NICd battery to start or charge a car as long as you can generate the cranking amperage to do so. A car phone charger will change your road trips for the better, but if you use yours wrong, you might drain your car battery or damage your phone battery. Also, a 75amp vehicle alternator running at an engine rpm of 2200 WILL in fact recharge a 675CCA car battery in 30 minutes at 10 degrees Celsius ambient. I left the map light on since saturday night and the battery is dead. In fact, under certain conditions a car battery may explode while just sitting in a parked car or on a table [source: battery-chargers]. After you read this article, you will learn how to calculate the charging time for your battery and also the way to charge your car battery. In an average car, how long can you leave your headlights on before it drains your battery? I know I've drained my car battery down to 11V on accident, running a. 1 Comment This is one of the most asked questions about cars recently as more and more people are taking public transportation in order to save on the high cost of gas and downtown parking fees. 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. Only at www. Such like a car battery will get completely discharged during the period from 2 to 3 months. If separate cell caps are fitted, remove them for ventilation. If you were to end the day with a 7-8 hour drive and then stop for 8 hours the battery would keep the fridge running worst case. The battery does lose some charge, all of them do, but in this case the charge lost is not enough to have a noticeable effect on how easily the engine starts. 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. That'll do it.