How long will a battery last with a bad alternator, good question but lets flashback to what an alternator is and what a car battery is. An alternator is device that converts mechanical energy to electrical energy in the car.
A car depends on the battery to start and run the ignition system and then get the engine running. While the alternator supplies continues electrical charge to the battery to keep it charged and healthy.
The battery depends on the alternator to stay alive and thereby keeping other electrical components functional. The headlights, electric steering, power windows, windshield wipers, heated seats, dashboard instruments, and radio all greatly depends on the alternator.
how long Can a new car battery last with a bad alternator
Like i have mentioned before, how long will a battery last with a bad alternator is not certain as it depends on many various factors. Factors that determines your cars battery life ranges from weather to engine type and amount of electronic components.
So therefore bear in mind your battery will not last with a bad alternator. Your car’s battery need to be charge by the alternator if its bad then the opposite will happen.
In most recent gasoline powered cars where most components greatly depends on the electrical power it is said that a new battery can last anywhere from 30minutes to 2 hours. However this is not certain when the battery condition is put to consideration.
There would definitely be difference between how long will a battery last with a bad alternator when the battery is new and old. Other factors like weather and climate also has a great impact on how long a battery lasts with a bad alternator.
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bad alternator vs bad battery which can your car live with
Well left to me i would prefer none of either a bad alternator or bad battery as this can cause disappointments and unpleasant experience. The alternator and the battery serve different purposes but they both depends on each other to stay in good shape and keep the car going.
A good alternator serves it purpose by continually sending charges to car’s battery so as to keep it alive and replenishing the electrical charges that are being used by the electrical components. The battery on the other hand does the work of helping the ignition system turn there by making the cars engine start and as well regulating the current being sent to other various electrical components.
Here are signs and symptoms that your battery is bad and what to do to manage the bad a battery condition.
- Dim headlights
Whenever your car’s battery starts going bad, the headlight’s brightness tends to start shining dim. This happens as a result of the not receiving enough current flow from the alternator to keep it charged up or the battery is totally dead.
The headlights of the cars consumes the most amount of battery current after the the car ignition which consumes the most and drains the battery charge. The headlights consume 10 times the amount of current all the electronic gadgets consumes all together.
- Clicking sound when you turn the key
This happens when the car is about to ignite, when the amount of current from the battery to the Kickstarter tends to delay and start making clicking sounds when the ignition is put on. The clicking sound that happens whenever the car is about to start is another good indicator of a bad battery.
- Needing to Press on The Gas Pedal to Start
Whenever you try starting you car and it wouldn’t start until you you have to press down the gas or have to flout the carburetor before the cars starts is a sign of a dead or bad battery.
Among other signs and symptoms of a dead or bad battery includes the following
- Slow crank
- Needing to press on the gas pedal to start
- Egg smell
- Corroded battery terminals
- An old battery
What causes a car battery to die quickly?
The battery is charged and kept charged from the current flowing from the alternator when the car is been driven. So if you alternator is bad then expect your battery too to die very soon because its not being charged.
You should also know that if your car sits in the driveway for long periods of time you run the risk of killing your battery. other factors too like how old your battery is and climate condition would greatly determine how fast your car’s battery would last or die.
Similarly, making a lot of short trips that don’t allow the battery to recharge can strain the system. And last but not least, don’t forget to turn your lights off — we all know how that ends!
Can a car run with a bad alternator?
The simple and direct answer to this question can a car run with a bad alternator is yes but there are conditions to it. A car can be jump started even if the alternator is bad or not working at all.
Your car will start when jump started if your alternator is bad but the battery is either new or fully charged. But you have to bear in mind that the alternator keeps the battery charged and alive so if it is not working then you battery stand the chance of dying in no time.
I guess you wouldn’t want a situation where you will spend a lot of money on getting new batteries every time. My adverse is that if you know that your alternator is bad or not working well then endeavor to get i replaced or fixed.