How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

If the alternator is working fine, the search for the problem will move to other parts of the starting and charging system. Got a Bad Alternator? It may have damaged your battery. Since the alternator regulates how much electric current gets fed back to the battery during recharging, the battery may have overheated due to overcharging.

How long will a battery last with a bad alternator

Car batteries last from three to seven years if maintained properly. An alternator, meanwhile, is designed to last the life of your vehicle, though that doesn't always happen. Let's take a look at some of the common signs of a bad alternator and a bad battery. Signs of a Bad Car Battery vs. Alternator.I replaced my battery a couple weeks ago and have been having problems weak starting ever since. The battery was 7 years old so I figured it was toast when my car failed to start. I know that my alternator is putting out 14.0 -> 14.2 voltages while my car is running because the onboard computer tells me that much.

How long will a battery last with a bad alternator

Answer (1 of 143): So - without a working alternator - there is nothing to recharge the 12v battery…so this is really a question of how far the charge in the battery will last. If the battery is already somewhat discharged - then who knows? But if we assume that the battery is fully charged - t...Oct 26, 2021 · Bad Alternator. The alternator – the part that recharges the battery while the engine runs – is another factor. A bad alternator might overcharge or undercharge the battery. If your car won’t start, or the battery runs down repeatedly, checking the alternator is a good idea. Maintenance for Older Batteries

How long will a battery last with a bad alternator

Oct 26, 2021 · It matters because you will undoubtedly take different approaches to resolving the problem. A defective alternator can actually destroy a fresh battery, but that’s a topic for another day. So, let’s look at the differences between a bad alternator and a bad battery. The following are some signs that your vehicle’s alternator is failing: posted by Myself at 12:58 AM on August 30, 2007. If you have a voltmeter/multimeter available, check the voltage (while the car is running) from the battery's + terminal to an exposed metal surface under the hood. If the alternator is working correctly, it should be somewhat higher than 12v.The symptoms of a bad alternator and a dead battery can be very similar. Thankfully both are fairly simple problems to fix. With some simple troubleshooting you can get back on the road fast.

How long will a battery last with a bad alternator

posted by Myself at 12:58 AM on August 30, 2007. If you have a voltmeter/multimeter available, check the voltage (while the car is running) from the battery's + terminal to an exposed metal surface under the hood. If the alternator is working correctly, it should be somewhat higher than 12v.

How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

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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. Ideally, what you need is a battery (batteries) that will provide the power you require without being cycled (depleted from resting full charge) by more than 20 to 50% before being recharged.

How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

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How long will a battery last with a bad alternator

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How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

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How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

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    Bad Alternator on a New Battery Although the car's battery might be new, it will not stop the bad alternator from damaging the battery. Hence, it is better to take care of the problem as soon as possible if the alternator is damaged.2018 Honda CRV batteries naturally last between 3-5 years, but this is variable depending on driving habits, weather conditions, the type of battery, and more. You can prolong the life of your CRV battery by: Starting your 2018 Honda CRV continuously is needed. Don't let your battery go unused for long periods of time.

How long will a battery last with a bad alternator

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    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. Ideally, what you need is a battery (batteries) that will provide the power you require without being cycled (depleted from resting full charge) by more than 20 to 50% before being recharged. Things like a bad battery or a faulty fuel pump can result in similar symptoms, ... It's hard to say exactly how long an alternator will last since so many factors affect its longevity. Some cars may experience a faulty alternator after 40,000 miles, whereas others will go 100,000 miles without running into issues.How long does the alternator last? On average, an alternator fails after 100,000-150,000 miles. In cars that are driven daily, an alternator tends to last longer. Tip: one of the reasons an alternator can fail prematurely is when an engine splash shield is broken or missing and road dirt and moisture can get into the alternator.

How long will a battery last with a bad alternator

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    It depends a lot on how much load you place on the battery, but by the time your headlights dim, you generally don't have long; maybe two minutes tops. A car with a carburetor will last considerably longer, especially if it also has a mechanical fuel pump. Without a timing belt, about 0.07 seconds at best.

How long will a battery last with a bad alternator

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    How long will bad alternator last? The battery's job is to start the car, and the alternator keeps it running." Gunning says an alternator typically lasts about seven years — or about 100,000 to 150,000 miles, says Waits.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. By the time I stopped (at home) the battery was so low it wouldn't re-start with jumper cables. Then, another time I threw the alternator belt on a different car ('79 280-ZX).

How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

How long will a battery last with a bad alternator

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    Minimally, the battery can last up to 30 minutes and maximally to almost two hours. In cases where you start your car without having an alternator, do not try turning off the engine on your way. Starting the car engine flattens the car battery fast. Headlights follow, starting the engine and draining the battery. Took my alternator to to have it tested any it was fine. Took my battery to the shop and the cold cranking amps where way low. Changed the battery and have no problems since. A good way to check to see if it is the alternator start your jeep and disconnect the battery. If the alternator is good your jeep should keep running.

How long will a battery last with a bad alternator

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    Feb 05, 2013 · Less than an hour long drive will nearly fully charge a dead battery. This article is totally wrong. The whole "batteries only last 3 or 4 years" thing is a myth. They "might" only last that long but often last much longer. Same as needing to change your oil every 3k miles, you can if you want to but you hardly need to. August 1, 2014 at 10:16 AM However, between a bad alternator vs. bad battery, how do you know what makes your car not start? To diagnose your problem, you should understand the functions and operations of both parts in a car. To start and run a car engine , you turn the ignition for the battery to deliver an electric jolt to the starter.

How long will a battery last with a bad alternator

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    Sep 01, 2021 · Similarly, the vehicle owner may assume it’s a bad alternator since their battery isn’t too old and then spend a lot of money replacing or repairing the alternator which didn’t need fixing in the first place. Even though car batteries come with warranties (ie: 48 months, 60 months, etc.), it doesn’t mean they will actually last that long.