Why does my battery keep dying but alternator is good?
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Why does my battery keep dying but alternator is good?
Some of the most common reasons for a car battery to die repeatedly include loose or corroded battery connections, persistent electrical drains, charging problems, constantly demanding more power than the alternator can provide, and even extreme weather.
Can a faulty alternator drain battery?
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.
What could be draining my car battery while driving?
Poor Charging – Ordinarily, as you drive, your battery is charged by the alternator. However, if the charging system is faulty, your car’s battery can drain even while you’re driving. This is because many vehicles rely on the alternator to maintain power to the radio, lights, and other electrical devices.
Can loose alternator belt drain battery?
Dead Battery. If the alternator belt is a little bit loose, it can charge the car battery but not good enough. If it sounds exhausted on the starter, it can be a sign of a loose alternator belt. If it gets bad enough, it can even cause the car battery to be completely dead the next time you are trying to start your car …
How do you know if its the alternator or the belt?
5 Symptoms of a Loose Alternator Belt (and Replacement Cost)
- 1) Flickering/Dimming Lights.
- 2) Vehicle Stalls.
- 3) Battery Warning Light.
- 4) Chirping or Squealing Noise.
- 5) Dead Battery.
Why does my car battery die when I start it up?
The battery puts out the most power when starting the car, shutting off your vehicle before the alternator has the chance to recharge could explain where the battery continues dying or does not seem to last long. The charging system cannot top off your battery while driving if the battery connections have corroded.
What happens when a car alternator goes bad?
A car alternator recharges the battery and powers certain electrical systems like lights, radio, air-conditioning, and automatic windows. If your alternator has a bad diode, your battery can drain.
Why is my car battery draining while driving?
If your charging system is not working properly, then your car battery can drain even while you are driving. Many cars power their lights, radio, and other systems from the alternator which can make the battery drain worse if there is a charging problem. The alternator may have a loose belt or worn out that keeps it from working properly.
Can corroded battery connections kill a car battery?
Corroded battery connections can put off the charging system from topping off your battery when you are driving. Loose battery connections can also cause issues. Extremely hot. Hot or cold weather won’t kill a battery that’s new or in good shape, but a weak or old battery may fail in extreme conditions.