27 Feb 2023 ... Once the battery is depleted, your vehicle will shut off, stranding you in potentially dangerous places like the side of a highway. To prevent ...Battery Keeps Dying Overnight . If your car battery keeps dying overnight, there are a few things you can do to try and fix the problem. First, check the battery terminals to make sure they are clean and tight. If they are corroded or loose, clean them and/or tighten them up. Next, check the alternator belt to see if it is worn or damaged.When your car battery starts acting up, it can be a sign of battery problems. Here are 5 signs your battery is dying: A Slow-Starting Engine. If you've noticed that your car takes longer than usual to start up, it might be time for a new battery. The battery is the power source for the starter motor, so if it is not working, the engine will not ...The better understanding you have of these problems, the easier it'll be to outline them to your mechanics when they ask you about the car's history. The biggest signs are: Your Vehicle Labors to Crank or Cranks Slowly. Labored or slow cranking when you start your vehicle is usually the first sign that you have something going on with …Before a car battery dies, some telltale signs may let you know that the battery is on borrowed time. Signs such as “check engine” light usually indicate that the battery is dying slowly. You should also keenly watch the vehicle’s reaction each time you start the engine. Here are several other symptoms that indicate your vehicle’s ...6 sign car battery replacement. ... Whether your car has a dying battery or excessive corrosion is resisting the car battery and the wires, we have the solution for everything. Your dying battery may slow down the rolling of your power window. You may notice it while the car's engine is not on. Usually, your power windows roll with just a push ...Leaking battery acid is one of the top signs a car battery is dying. A dying lead battery will produce hydrogen sulfide gas, which smells like …Oct 21, 2021 · Clicking sound when turning the key. If the engine does not crank at all, the vehicle will often make a rapid clicking sound, signaling the available power is too low to crank the engine. If your car won’t start and all you hear is a clicking noise, your battery is either almost or completely dead. Sometimes a jump start from another vehicle ... Headlights draw significant power from the battery. A dim headlight is a sign of insufficient power from your car battery to go around. 3. Problems With The Electrical System ... Diagnosing A Dying Car Battery And Possible Repairs. Diagnosing a battery problem or a faulty charging system is a simple process but can be dangerous if not executed ...Nov 23, 2020 · Leaking battery acid is one of the top signs a car battery is dying. A dying lead battery will produce hydrogen sulfide gas, which smells like something between rotten eggs, a sewer or well water. 4. Dim Headlights. Your car will experience sudden electrical issues when you have a bad battery. Learn how to recognize the symptoms of a failing battery, such as slow engine crank, dim headlights, and dashboard warning light. Find out …6 signs that a battery is dying. There are a number of signs that might suggest that your car's battery needs replacing, and doing so when you see these signs can prevent you from having to deal with the drama of a completely dead battery. 1. Trouble starting. If your car is taking longer than normal to start or there is little to no noise when ...Feb 26, 2024 · Knowing the signs of a dying car battery is crucial to preempt unexpected breakdowns. Recognizing these signs—dim headlights, slow engine cranks, electrical malfunctions—helps drivers identify battery problems early, allowing timely interventions or replacements and preventing inconvenient and potentially hazardous situations on the road. If your car doesn’t start, it may be because the battery needs to be charged or replaced. You can check the battery yourself by using a voltmeter to measure its voltage. A healthy battery should have a voltage of 12. 6 volts or higher. If the voltage is below 12. 6 volts, it indicates that the battery needs to be charged.2. 2. Hollywood, Florida. May 24, 2023. #1. My 2021 Tesla model 3 12 volt battery just died without any warning. A few months ago my nieghbor had the exact same issue with his 2021 Y. When this happens it’s like a stroke one half of the car is paralyzed and only the passenger side door will unlock. You are unable to remove the charger plug ...Car batteries are very robust, lasting for years on average, but any interruption can lead to frustration. Here are eight reasons your battery keeps dying.5 Feb 2024 ... 1. Slow Engine Crank · 2. Dim Headlights and Electrical Issues · 3. The Check Engine Light · 4. Swollen Battery Case · 5. Corroded Connec... Recognizing the signs of a dying car battery is crucial for taking timely emergency measures. Should your battery fail, immediately turn off all electrical accessories to conserve power. If possible, attempt a jump-start with jumper cables and another vehicle. 24 Feb 2024 ... Dimming Lights: A damaged or old battery may cause the headlights, interior lights, or dashboard lights to dim when you start the car or when ...16 Dec 2020 ... 8 Signs of a Dying Car Battery · 1. Car Won't Start. This is a pretty obvious sign that the battery is dead. · 2. Dim Lights · 3. Malfuncti...Sep 22, 2019 · Regardless of the make and model, you’ll likely experience at least one of the following symptoms when a hybrid vehicle’s battery begins to fail. 1. A decrease in fuel economy. If you’re not getting the gas mileage you expect from a hybrid, it likely indicates that the battery is dying. The purpose of the hybrid vehicle’s battery is to ... The battery light on the dashboard may light up. Although this is not always an indication the battery is going to die, the light relays information about the battery and charging system. It would be advisable to get the charging system checked. Check for any signs of battery leaks and any scaly build-up on the battery terminals. Signs Your Hyundai Hybrid Battery is Dying. Recognizing when your Hyundai hybrid battery is nearing the end of its life can save you from unexpected breakdowns. If you’ve noticed warning lights on your dashboard, a sudden drop in fuel efficiency, or your car’s battery struggling to stay charged, it’s time to pay attention.So, if the clamp seems stuck at first, try to move the clamp's sidearms up and down to remove them from the battery tray at the bottom. Once they're free, the entire clamp will quickly come off. 5. REMOVE THE DEAD BATTERY. Have a level, dry place to set down the old battery before lifting it from the car.8 Jun 2022 ... If the engine starts but dies immediately, your alternator probably isn't keeping your battery charged. If a jump starts and keeps your car ...The check engine light is one of the most common indicators of something wrong with your car. If this light comes on and stays on, it could indicate that your battery is not providing enough power to the engine. Several things could cause this, but a failing battery is one possibility. A bad battery will make the check engine light come ON.2. 2. Hollywood, Florida. May 24, 2023. #1. My 2021 Tesla model 3 12 volt battery just died without any warning. A few months ago my nieghbor had the exact same issue with his 2021 Y. When this happens it’s like a stroke one half of the car is paralyzed and only the passenger side door will unlock. You are unable to remove the charger plug ... The Warning Signs of a Bad Battery. Oh, the dreaded feeling of helplessness when you turn the key in the ignition and hear nothing. Your battery is dead, and you're stranded wherever you happened to be parked. Don't let it happen to you. The first step is knowing when to replace your battery. Feb 25, 2021 · Clicking Sound When Turning the Ignition. The next time you start your car, listen carefully. If you hear a clicking sound when turning the ignition, your battery is likely about to fail. Corrosion on the Battery Terminals. Corrosion is a flaky substance that forms on car battery terminals over time. Often blue or white in color, corrosion ... Battery Keeps Dying Overnight . If your car battery keeps dying overnight, there are a few things you can do to try and fix the problem. First, check the battery terminals to make sure they are clean and tight. If they are corroded or loose, clean them and/or tighten them up. Next, check the alternator belt to see if it is worn or damaged.Investors should consider investing in battery stocks as they are an attractive investment option owing to the growth in electric vehicles. Investing in EV is a good idea, but ther...Here are seven telltale signs that your car battery is dying: 1. A SLOW STARTING ENGINE. Over time, the components inside your battery will wear out and become less effective. When this happens it takes the battery …Apr 28, 2023 · Swollen Battery Size: Fast charging or overcharging is unhealthy for your car’s battery. Continued use of either method will cause the battery to swell and gradually render it useless. If you notice any signs of a swollen battery, it means the battery is either dead or dying. Here are seven telltale signs that your car battery is dying: 1. A slow starting engine. Over time, the components inside your battery will wear out and become less effective. When this happens it takes the battery longer to create a charge for the starter and you’ll have to wait a few extra seconds for the engine to turn over.10 Apr 2020 ... Symptoms of a Dead Car Battery · The engine struggles to turn over and makes a grinding noise · Your car won't start in the morning but starts no&...Sep 22, 2019 · Regardless of the make and model, you’ll likely experience at least one of the following symptoms when a hybrid vehicle’s battery begins to fail. 1. A decrease in fuel economy. If you’re not getting the gas mileage you expect from a hybrid, it likely indicates that the battery is dying. The purpose of the hybrid vehicle’s battery is to ... When the battery warning light on the car's dashboard lights up, it indicates that there is a problem with either the battery, or your charging system. Even if ...A dying car battery is like that sneaky friend who cancels plans at the last minute - you never see it coming, but boy, does it mess up your day! In this article, we’re going to unravel the mystery of those ten warning signs your car battery is giving you before it decides to go on vacation. Slow Engine Crank. Imagine this scenario: you’re ...What does "maintenance free" mean on your car battery? Does it mean that you have to discard it if it goes dead? No. It simply means that you do not need to add water to it on a re...If a battery is dead and reading like 10V, then the alternator running at 14V is going to charge it. With a 4V difference, a lot more current is going to flow through the battery than if the battery was at 12.5V. Another example: If there's a sudden large draw like heated seats or rear defrost, the current draw at 14V is high and the alternator ...Apr 28, 2023 · Swollen Battery Size: Fast charging or overcharging is unhealthy for your car’s battery. Continued use of either method will cause the battery to swell and gradually render it useless. If you notice any signs of a swollen battery, it means the battery is either dead or dying. Nov 23, 2020 · Leaking battery acid is one of the top signs a car battery is dying. A dying lead battery will produce hydrogen sulfide gas, which smells like something between rotten eggs, a sewer or well water. 4. Dim Headlights. Your car will experience sudden electrical issues when you have a bad battery. When your car battery starts acting up, it can be a sign of battery problems. Here are 5 signs your battery is dying: A Slow-Starting Engine. If you've noticed that your car takes longer than usual to start up, it might be time for a new battery. The battery is the power source for the starter motor, so if it is not working, the engine will not ...Fortunately, there are numerous, unmistakable signs that your car battery is on the verge of failing. Here are the 10 most common symptoms of a … 3. Dashboard warning symbol. An illuminated battery symbol could be down to a loose starter terminal, a failing alternator or even damaged cabling. If the light stays on while driving, there's likely a problem with your alternator belt (responsible for charging your battery while on the move). This shouldn't be overlooked - a faulty charging ... Dec 23, 2020 · Over time, your battery will gradually lose the ability to hold the same charge. This is totally normal with use but you will start to notice signs of lower battery power after a few years or so. Keeping up with regular car maintenance can prolong the life of your battery – as well as catch a dying battery before it causes you real trouble. After five years, it is common to see a 5-10% drop in range. Some vehicle models follow a fairly linear 1.5-2.0% per year, while most others drop 2-3% in the first couple of years before leveling ...Signs of a Dying Car Battery. If you are driving your car daily, your vehicle’s battery should be getting a full charge. To maintain your battery’s health and avoid car problems, it is important to know the signs of failure. Here are the top ten signs of a dying car battery, in no particular order. 1. Lights Turn On, Car Won’t Start6 sign car battery replacement. ... Whether your car has a dying battery or excessive corrosion is resisting the car battery and the wires, we have the solution for everything. Your dying battery may slow down the rolling of your power window. You may notice it while the car's engine is not on. Usually, your power windows roll with just a push ...Leaking battery acid is one of the top signs a car battery is dying. A dying lead battery will produce hydrogen sulfide gas, which smells like …If the reading is 12.5 volts or lower, there could be a problem with either the alternator or the battery. Another way to test this is by starting the car and then turning on all of the accessories (lights, radio, etc.). If they dim noticeably, it’s probably just a weak battery that needs to be charged.In order to avoid this potential problem, it's important to know the warning signs of a bad or failing key fob battery. Listed below are a few of these symptoms that will alert you that it's probably time to replace your fob battery. 1. Reduced signal strength. Most of today's fob keys will send a signal to the vehicle up to 50 feet in many cases.Yes, a car battery can die while driving. However, if the car battery fails while driving with the alternator working, you may not realize the battery is dead until you turn off the car. Once you try to restart the car, it won’t turn over. If the alternator fails and can’t charge the battery, the car will shut off while driving.The Vehicle Won't Start At All. Nothing happens when you try to start the car. The engine …Jan 17, 2020 · 2. DASHBOARD WARNING LIGHT. If the dreaded “check engine” or “check battery” light turns on, your battery power may be waning. 3. SWOLLEN BATTERY CASE/CORROSION. Hot temperatures can often cause your battery to become bloated, ultimately leading to decreased battery life. Also, if you see any corrosion—a chalky residue built up around ... We can't know for sure exactly how we're going to die, but some ways of going are more common than others. The National Safety Council has calculated the probability of dying from ...Remove the sensor or coil from the vehicle, if necessary. Test the sensor resistance; or the primary and secondary ignition coil resistance. Compare your results to the specifications in your vehicle repair manual. Heat the sensor or ignition coil moderately using a hot air gun or hair dryer. Repeat step number 2. The Warning Signs of a Bad Battery. Oh, the dreaded feeling of helplessness when you turn the key in the ignition and hear nothing. Your battery is dead, and you're stranded wherever you happened to be parked. Don't let it happen to you. The first step is knowing when to replace your battery. One of the most common signs your car battery is dying is when the electrical system starts acting up. This can manifest in a number of ways, from dimming headlights to power windows that move slowly or not at all. If your car battery is starting to die, it’s likely that the electrical system will be one of the first things to go. ...So, if the clamp seems stuck at first, try to move the clamp's sidearms up and down to remove them from the battery tray at the bottom. Once they're free, the entire clamp will quickly come off. 5. REMOVE THE DEAD BATTERY. Have a level, dry place to set down the old battery before lifting it from the car.27 Feb 2023 ... Once the battery is depleted, your vehicle will shut off, stranding you in potentially dangerous places like the side of a highway. To prevent ...If the reading is 12.5 volts or lower, there could be a problem with either the alternator or the battery. Another way to test this is by starting the car and then turning on all of the accessories (lights, radio, etc.). If they dim noticeably, it’s probably just a weak battery that needs to be charged.Paying attention to the 10 "trouble" signs on this list can make it a little easier to diagnose car trouble caused by the alternator. Contents. Warning Light. Dim Lights. Flickering Lights. A Dead Battery. Broken or Loose Connections. Bad Belts. Strange Sounds.If a battery is dead and reading like 10V, then the alternator running at 14V is going to charge it. With a 4V difference, a lot more current is going to flow through the battery than if the battery was at 12.5V. Another example: If there's a sudden large draw like heated seats or rear defrost, the current draw at 14V is high and the alternator ...Bad smells. Another indicator that your car battery is dying are the smells that emit from your car. You may experience smells such as a “sulfur-rotten-egg” kind of smell, from your hood. If there is damage to the battery or you have some sort of internal short your car battery may be leaking gas.1. Plug your laptop in and charge it to 100% (or whenever your laptop says the battery is no longer charging). 2. While your laptop is doing it’s thing, it’s time to change some settings. Open Control Panel > Hardware & Sound > …When a car battery is overcharged, the most common effect is the battery rapidly dying, however, a battery that swells and becomes hot to the touch is also a direct result of overc...If the reading is 12.5 volts or lower, there could be a problem with either the alternator or the battery. Another way to test this is by starting the car and then turning on all of the accessories (lights, radio, etc.). If they dim noticeably, it’s probably just a weak battery that needs to be charged.Regardless of the make and model, you’ll likely experience at least one of the following symptoms when a hybrid vehicle’s battery begins to fail. 1. A decrease in fuel economy. If you’re not getting the gas mileage you expect from a hybrid, it likely indicates that the battery is dying. The purpose of the hybrid vehicle’s battery is to ...6 Apr 2022 ... If it takes a few twists of your key or pushes of the button to start your engine, this may be a sign that your battery is dying. You'll ...Learn the signs of a failing car battery and how your Subaru retailer can test your battery to see if it needs to be replaced. Popular Searches ... FREE towing to the nearest Subaru retailer if the vehicle can’t be driven due to a battery defect covered by the warranty (within the 30-month period) 85-month limited warranty (reimbursement for ...One of the most common signs your car battery is dying is when the electrical system starts acting up. This can manifest in a number of ways, from dimming headlights to power windows that move slowly or not at all. If your car battery is starting to die, it’s likely that the electrical system will be one of the first things to go. ...Headlights brighten when revving the engine. Headlights dim when engine is idling. Corrosion is visible on car battery cables and terminals. Frequent jump-starts needed. Takes longer for your Mercedes-Benz to start. Learn more signs your Mercedes-Benz car battery is dying.You have stopped on the road. Take this as a warning sign that your battery may be dying. You have charged up fully, but the car doesn't automatically come to life as it used to. It could be a ...Ensure the stereo’s automatic power-off feature is functioning correctly. #3. Turn off unnecessary features like the display or lights when not in use to conserve battery power. #4. Consider installing a battery-saver device to prevent the battery from draining when the car is not in use. #5.Signs Your Mercedes-Benz Car Battery Is Dying. Headlights brighten when revving the engine. Headlights dim when engine is idling. Corrosion is visible on car battery cables and terminals. Frequent jump-starts needed. Takes longer for your Mercedes-Benz to start. Learn more signs your Mercedes-Benz car battery is dying. 1. No Response At Ignition. If your car doesn’t start when you turn the ignition key, it probably means the starter motor is getting zero power from a dead battery. 2. The Starter Motor Cranks But The Engine Won’t Turn Over. Sometimes, the starter motor might crank slowly, but the engine won’t start. The Headlights Go Dim When Idling. If your battery is losing power, you’ll find that all your vehicle’s electrical components will feel the effects. When you’re idling in your car, you might notice your headlights go dim. Then, upon acceleration, they brighten right back up. This is a tell-tale sign that your car battery needs to be replaced.Sign #1 - Dim Headlights. A clicking noise when you turn the key means your battery is either dying or already dead. Testing your headlights is one of the easiest ways to tell if your car battery is dying. If your headlights dim while you’re idling and brighten when you accelerate, you likely have a weakening or dying car battery.Sep 22, 2019 · Regardless of the make and model, you’ll likely experience at least one of the following symptoms when a hybrid vehicle’s battery begins to fail. 1. A decrease in fuel economy. If you’re not getting the gas mileage you expect from a hybrid, it likely indicates that the battery is dying. The purpose of the hybrid vehicle’s battery is to ... White, blue, or orange fuzz forming around the battery may indicate that its connection is about to fail. Signs a Car Battery is Dying. There are a variety of …If a car dies while in operation and the interior battery light turns on, this is typically a result of the battery dying completely. In other cases, the battery light may turn on ...The windows roll slowly. Rolling your windows up and down while the engine is on may be easy, but to put your battery to the test, try rolling them up or down when the engine is off. If they are slow to respond, your battery is struggling to power them properly. Physical resistance like a blockage could also be the culprit, so be sure to look ...Investors should consider investing in battery stocks as they are an attractive investment option owing to the growth in electric vehicles. Investing in EV is a good idea, but ther...Without the car battery, we aren’t going anywhere. The car doesn’t start, the radio doesn’t play, the clock flashes 12:00; all signs that your car battery is dying. I am going to call this the Will My Car Battery Die series and we will discuss some common and not so common situations that may kill our car battery. The Warning Signs of a Bad Battery. Oh, the dreaded feeling of helplessness when you turn the key in the ignition and hear nothing. Your battery is dead, and you're stranded wherever you happened to be parked. Don't let it happen to you. The first step is knowing when to replace your battery. Paying attention to the 10 "trouble" signs on this list can make it a little easier to diagnose car trouble caused by the alternator. Contents. Warning Light. Dim Lights. Flickering Lights. A Dead Battery. Broken or Loose Connections. Bad Belts. Strange Sounds.The average lifespan of a car battery is between three and five years. However, battery life can vary based on a few factors. Where you live, the model of the car you drive, and the type of battery all play a part in determining car battery life. Extreme temperatures are known to weaken a car battery. For example, hot weather can add to the car ...Signs Your Mercedes-Benz Car Battery Is Dying. Headlights brighten when revving the engine. Headlights dim when engine is idling. Corrosion is visible on car battery cables and terminals. Frequent jump-starts needed. Takes longer for your Mercedes-Benz to start. Learn more signs your Mercedes-Benz car battery is dying.The Warning Signs of a Bad Battery. Oh, the dreaded feeling of helplessness when you turn the key in the ignition and hear nothing. Your battery is dead, and you're stranded wherever you happened to be parked. Don't let it happen to you. The first step is …
How to Tell if a Car Battery is Dead. Part of the series: How to Change a Car Battery. Diagnosing car troubles. Learn how to spot the signs that your car bat.... Best credit card for online shopping
Aug 26, 2023 · Slow cranking. Hard to start the engine. Battery losing its charge. Corroded battery terminals. However, before you blame your car battery for any of these symptoms, there are some things you need to check to make sure your battery is at fault. One or more of these symptoms can be the work of a bad charging system or circuit, a parasitic draw ... Aug 26, 2023 · Slow cranking. Hard to start the engine. Battery losing its charge. Corroded battery terminals. However, before you blame your car battery for any of these symptoms, there are some things you need to check to make sure your battery is at fault. One or more of these symptoms can be the work of a bad charging system or circuit, a parasitic draw ... Here are seven signs to watch out for. 1. Dim Headlights. One of the first signs that your car battery is dying is dim headlights. When you turn on your headlights, they should be bright and clear. If they’re dull and yellow, it’s a sign that your battery isn’t providing enough power.The windows roll slowly. Rolling your windows up and down while the engine is on may be easy, but to put your battery to the test, try rolling them up or down when the engine is off. If they are slow to respond, your battery is struggling to power them properly. Physical resistance like a blockage could also be the culprit, so be sure to look ...InvestorPlace - Stock Market News, Stock Advice & Trading Tips It’s a good time to accumulate undervalued, quality electric vehicle batt... InvestorPlace - Stock Market N...Jan 11, 2016 · In order to avoid this potential problem, it's important to know the warning signs of a bad or failing key fob battery. Listed below are a few of these symptoms that will alert you that it's probably time to replace your fob battery. 1. Reduced signal strength. Most of today's fob keys will send a signal to the vehicle up to 50 feet in many cases. Signs Your Mercedes-Benz Car Battery Is Dying. Headlights brighten when revving the engine. Headlights dim when engine is idling. Corrosion is visible on car battery cables and terminals. Frequent jump-starts needed. Takes longer for your Mercedes-Benz to start. Learn more signs your Mercedes-Benz car battery is dying.Learn how to tell if your car battery is dying and what to do about it. Find out the common symptoms, causes and solutions for a dead car battery, …Often, purchasing a new key fob battery is all it takes to get your handy dandy fob back in working order. If you notice any of the following symptoms of a dying key fob, don’t wait. Contact your local auto locksmith for a quick diagnosis and cure: Symptoms Of A Dying Key Fob Battery: 1. Worsening Signal StrengthInvicta watches are known for their style, durability, and precision. However, like any other timepiece, Invicta watches rely on batteries to keep them ticking. Over time, these ba...Headlights brighten when revving the engine. Headlights dim when engine is idling. Corrosion is visible on car battery cables and terminals. Frequent jump-starts needed. Takes longer for your Mercedes-Benz to start. Learn more signs your Mercedes-Benz car battery is dying.Nov 23, 2020 · Leaking battery acid is one of the top signs a car battery is dying. A dying lead battery will produce hydrogen sulfide gas, which smells like something between rotten eggs, a sewer or well water. 4. Dim Headlights. Your car will experience sudden electrical issues when you have a bad battery. Jun 22, 2022 · 9. Odd Smell from Your Battery. The stink of sulfur is a sign that your battery acid is leaking. Leaking battery acid is one of the top signs a car battery is dying. A dying lead battery will produce hydrogen sulfide gas, which smells like something between rotten eggs, a sewer or well water. The car battery isn’t just there to power the starter motor and the ignition system. It plays a part in the running of anything powered by electricity in the car, as it offers addi...If you own a Mazda car and are in need of a battery replacement, it’s important to choose the right one to ensure optimal performance and longevity. With so many options available ...The most common sign is when your car takes longer to start up than usual. If your car takes multiple attempts to start or makes clicking sounds when you attempt to start it, it’s likely that your battery is dying. Additionally, if you see any warning lights like the check engine light or battery icon on your dashboard, your battery may be dying.A healthy alternator puts out around 14.1 to 14.7 volts, as much as is needed to keep the battery fully charged. If the voltage falls below 14, you may start to notice the car’s electrical equipment not working properly; below 12V and the car will struggle to function at all. If that’s the case, it’s likely the battery is failing.We provide roadside assistance for customers across Ireland, offering 24/7 help that includes personal cover & an 80% repair rate. If you're interested, or you're an existing AA car insurance customer who wants added protection, give our team a quick call at 0818 227 228. Published 25th September 2023.Driving faster than 100 km/h (60 mph) will use more battery capacity per 60 miles than assumed by the battery meter. This is not a battery efficiency issue, just physics: all cars will use more fuel at higher speeds due to air drag, which is proportional to speed to the power 3. Secondly is battery temperature..