how to know if your car battery dead?
39478
['When you attempt to start the car, there is a low whining sound.', 'If jump starting gets your engine started and running, but the car will not start again once you turn it off, the battery is probably the problem.']
4522
['Battery drains easily. Batteries perform at its best in the first 2 years. ... ', 'Phone does not charge after being plugged in. This is another common sign of a bad battery. ... ', "The phone doesn't hold the charger. If the battery has started to deteriorate, the device won't stay on for long. ... ", 'Phone restarts on its own.']
891095
If you're turning the key in the ignition and your engine is lagging, or not catching at all, nine times out of ten it's a sure sign your battery is close to dying, or completely flat. Normally turning your key in the ignition invites the battery to start supplying power to the starter.
61179
['Car does not start or cannot move. ... ', 'Transmission goes into different gear than selected. ... ', 'Vehicle goes into limp mode.']
36808
['Slow engine crank: When you attempt to start the vehicle, the cranking of the engine is sluggish and takes longer than normal to start. ... ', 'Check engine light: The check engine light sometimes appears when your battery power is weak.']
693983
Alternator at Fault: However, a very simple way to check if the alternator is working is to run the car and disconnect the positive terminal of the battery. If the vehicle stops running, then you probably have a bad alternator. You can also examine your interior and dashboard lights.
369074
Another simple test is to check your interior lights. An alternator charges your battery when the car is running. If the interior and dashboard lights come on brightly but slowly start to fade, then it indicates a problem whit the alternator.
1227989
2) Take a Voltage Reading If your battery is: Reading 0 volts, chances are the battery experienced a short circuit. Cannot reach higher than 10.5 volts when being charged, then the battery has a dead cell. Fully charged (according to the battery charger) but the voltage is 12.4 or less, the battery is sulfated.
652939
Alternator at Fault: An illuminated dashboard light can indicate a problem with an automobile charging system. However, a very simple way to check if the alternator is working is to run the car and disconnect the positive terminal of the battery. If the vehicle stops running, then you probably have a bad alternator.
692632
['Your engine has a rough idle. ... ', 'Your car has poor performance. ... ', 'You have increased fuel consumption. ... ', 'Your car frequently stalls when idling. ... ', 'You can smell fuel. ... ', 'Your engine management light stays on. ... ', 'Your car produces more emissions. ... ', 'You hear knocking noises coming from the engine.']
409893
["Engine Doesn't Crank or Start. ... ", 'Engine Barely Turns Over. ... ', 'Dim Lighting. ... ', 'Engine Starts and Stays Running When Jumped. ... ', 'Dim or Overly Bright Lights. ... ', 'Discharged Battery. ... ', 'Alternator Noise. ... ', 'Electrical Issues.']
429202
['Car Has Difficulty Starting. This could be a sign that your filter is partially clogged and on its way to being completely dammed up.', "Car Won't Start. This could be caused by varying issues, and one of them is a fuel filter problem. ... ", 'Shaky Idling. ... ', 'Struggle at Low Speeds. ... ', 'Car Dies While Driving.']
50376
['A slow starting engine. Over time, the components inside your battery will wear out and become less effective. ... ', 'Dim lights and electrical issues. ... ', 'The check engine light is on. ... ', 'A bad smell. ... ', 'Corroded connectors. ... ', 'A misshapen battery case. ... ', 'An old battery.']
370445
["Your engine cranks, but it doesn't start.", "Your engine doesn't crank or start, and the lights don't come on!", "One day it starts fine, then the next day it won't start at all.", 'Cold cranking is hard work.', "You've jumped it a lot already."]
1197623
['Turn the ignition key. If the engine does not turn over, either your battery is completely drained or your starter is bad. Listen carefully for a click. ... ', 'Open the hood. Wiggle the connections on your battery. ... ', 'Lightly tap the starter with a hammer a couple of times. Try starting the car again.']
554475
['Problems starting the vehicle. Difficulty starting the vehicle is one of the first symptoms of a problem with the battery terminals. ... ', 'Corrosion on the battery. One of the most common symptoms of a battery terminal issue is visible corrosion. ... ', 'Loss of electrical power.']
127340
Slow engine crank. This is probably one of the most common symptoms of a dying battery. The engine pulls amperage from the battery each time it starts. If your battery is close to dying, you will likely find your engine slow to crank. If you hear your engine cranking slowly, bring the vehicle in as soon as possible.