If this is the first time that it has been discharged you should be able to fully charge the battery and continue using it but every time it is discharged below that threshold of 10 5 volts the damage is done. It can be low from lights being left on an internal failure extreme hot or cold temperatures a failing alternator long term storage without being used or any number of other reasons.

How Long Will It Take To Charge A Dead Car Battery The Vehicle Lab

All you can do is check the electrolyte and put it on a trickle charger.

If your car battery is dead can you charge it. Recharging the battery can get you back on the road and can preserve the life of the battery. At least 30 minutes of driving will help charge the battery back to a safe level for your next start. If it doesn t the battery might need to be replaced.

If you re having car battery trouble it s time to head to your local autozone for free battery testing. Let the dead battery charge for a few minutes and then turn the ignition on the vehicle of the dead battery to see if it starts. Below 12 volts use a dedicated charger your vehicle s alternator can keep a healthy battery charged but it was never designed to completely recharge a dead car battery if the unit in question reads below 12 volts.

If the battery fails the test we can help you find a suitable replacement. If the battery is discharged but still technically sound we can charge up the battery so you can be on your way. The battery in your car can go dead for any number of reasons leaving you stranded.