I have Chrysler 300c. Battery light came on, changed battery and alternator but power still getting drained and battery light still comes on. And once it shuts off the car battery goes down to 10.5 and won't start, just clicks
Hi, thanks for writing in. This may be a sign of a failing starter relay. The starter relay is a small unit near the starter that directs power to the starter from the battery. When this fails, it may cause a clicking sound and will not allow the starter to engage the flywheel when you turn the key. I would suggest having a professional from YourMechanic come to your home to diagnose your starting issue to determine the solution to get you back on the road.
How to Identify and Fix Common car Problems ?
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An illuminated battery light could be due to a number of issues, including: A loose or corroded battery cable. A problem with the alternator or voltage regulator. Damaged cells or plates inside the battery.
If your Chrysler 300 battery warning light comes on while driving, be sure to turn off your accessories, so the battery doesn`t drain further. The warning light ordinarily means that the alternator isn`t running accordingly meaning you are operating solely on battery power.
Basically, the light indicates a battery charging problem. If the light comes on and stays on while driving, this means that your alternator is running solely on energy stored in the battery. If you continue driving, your battery will eventually drain and your vehicle will stop working.
However, some vehicles (notably higher-end European imports) have more than one battery. There`s the primary battery under the hood, but there`s also an auxiliary battery. These are used to power other systems on the car that require 12 volts of power, and which the alternator is not capable of powering directly.
Probably, the most common symptom associated with a bad regulator is flickering, dimming, or pulsing lights. To be more specific, you may notice that the vehicle`s: Headlights fluctuate between bright and dim, without you doing anything. High beam isn`t working as expected.
The red battery light could indicate a problem with the alternator, battery or other parts of the electrical and charging system in the car. It could be a minor problem such as a malfunction rectifier unit, blown fuse or cabling short circuit.
If your battery warning light comes on whilst you`re driving, it means that your battery is no longer being charged by the alternator and is running only on its own charge. That means that your car is only running on battery power that will eventually run out, bringing your car to a halt.
The battery light on your car dashboard signals a charging problem with your car battery. If the light turns and stays on, it might be that your alternator isn`t generating enough voltage to charge it. Common causes can be a broken alternator belt, damaged battery cells or a failed alternator.
The short answer is: Yes, it can. It could also drain the battery even faster if you repeatedly try to start your car with a faulty starter. A faulty starter is also one of the leading causes of battery overcharging.
The alternator light will either be a battery or an ALT, both can indicate that your alternator isn`t working properly. Without an alternator, your battery isn`t going to stay charged.
A Chrysler 300 has both a starting battery and an auxiliary battery. The auxiliary battery works as a backup for the starting battery and also provides power to the onboard technology in your car.
If a charging source is present, such as the alternator when the engine is running, the smart relay will connect the two batteries so they can both charge together. If the smart relay senses a drop in voltage it will disconnect, thus isolating the batteries.
Symptoms of a burnt out diode:
The engine will begin to run rough, lack power and eventually stall and not start again. The battery warning light will turn on, warning you that there is a problem with your alternator charging system. The headlights will become dim due to reduced battery voltage.
There are many reasons your car`s battery might be dead, and one of them happens to be a broken voltage regulator. This is because when this part burns out, the battery will no longer charge, meaning it will eventually die.
If your alternator voltage regulator is working correctly, your battery`s voltage output should cap around 14.5V. If the reading is above 14.5V, you likely have a faulty voltage regulator. If the reading is below 13.8V, your battery is weak and will probably need a replacement.
But when someone mentions the “alternator fuse”, they`re generally referring to the primary, high-amperage fuse (or fusible link) between the alternator and the battery. Like any fuse, the primary alternator fuse acts as a circuit protection device.
A corroded or defective alternator diode will faultily continue charging the circuit even when the car off. This, in turn, will drain your car battery and cause the car not to start.
The standard alternator designed for road vehicles has a voltage regulator mounted to the back of the alternator and set to a single charge voltage of 14 or 28 volt. This is sufficient for a car battery, which is rarely (if ever) discharged.
If you hear a whine or the sound goes fuzzy when you hit the gas, your alternator is probably failing. If the vehicle won`t crank or start but the headlights are still working, look to problems with the starter or other parts of the engine.
One of the most common reasons the battery light comes on and the car battery stops charging is because of corrosion. Whether the corrosion is on the battery cables or cable terminals, it is still a problem that needs to be addressed. Another common culprit for the battery not charging is a problem with the alternator.
What may drain a car battery when it`s off are things such as interior lights, door lights, or even bad relays. While your engine runs, the alternator recharges the battery — which is why you typically don`t have to worry about the battery dying while you`re blasting the radio on your drive to work!
The starter is part of your car`s electrical system and subject to blown fuses and short circuits. When you`ve been desperately attempting to start your car, the starter can overheat making electrical issues—and the accompanying smoke—more likely.
Why won`t my car start but the battery is good? If your car won`t start but the battery is good, the most common cause is a faulty starter – though it could also be to do with your fuel. You may have insufficient fuel to get the car going.
Bad Spark Plugs
If the engine holds compression well, and the fuel system is working correctly, but it still won`t start, that tells us that your car`s spark plugs may not be working. The spark plugs ignite the air/fuel mixture inside the engine`s cylinders. It`s the resulting explosion that actually powers your car.