well most obviously, charge the battery and turn on the mp3 player, if it doesn't turn on it's most liky dead, housever you should use a multimeter to check the actual battery. well most obviously, charge the battery and turn on the mp3 player, if it doesn't turn on it's most liky dead, housever you should use a multimeter to check the actual battery.
Remove the battery and check it with a volt meter.
If the battery is dead the alarm will not go off
Your car won't turn on.
If the battery will not hold a charge it more than likely has a dead cell. If the battery is over 4 years old, replace it.
Remove the battery and take it to an Auto Parts store. They will check it and tell you if it is defective.
the computer will shut off entirely
The battery keeps going dead.
It wouldnt work
Try start the car. Check the voltage.
turn the key, and if the interior lights don't come on or flicker, then its dead.
If your car battery is dead, you will not be able to start your vehicle without a jump using jumper cables. When the car won't start and the lights on the dash aren't working, it is most likely your battery.
It's just called "eye black." Real creative, I know.