Generally if a car battery is dead, the lights will dim and there'll be other electrical issues like not being able to open windows. there are some simple ways you can test for the problem yourself, however. the first thing to do is take it to an auto shop or check voltage with a meter at different points on your system before anything else—starting with the engine may help you narrow down the issue even more than just checking batteries alone.
what are the signs of a dead battery in a car?
a dead battery can produce an orange, blurry headlight– which indicates the voltage regulator is not operating and the alternator is stuck charging near its maximum output.
a major symptom of a bad or dying battery and/or electrical problem in a vehicle is dimming headlights. due to the fact that headlights consume more current than anything else on a vehicle's electrical system, they will always be first to signal that something has gone wrong with the car’s power supply (even before an engine light comes on).
another common symptom of a battery failing is roaring sounds from under the hood; this roaring sound arises from high-voltage coils of copper wire spinning near their permitted revolutions per minute– if these coils don't get enough
