Contents
Why does my battery die after 2 days?
Some have had the dead battery problem because of a bad cell in the battery, faulty battery cables, a bad diode in the alternator, or even a problem in the car’s radio. A dead battery after a few days has been a problem on several makes of car, not just my 2012 Hyundai Sonata.
How long can a new car sit before the battery dies?
When stored properly out of the car in a secure place, a detached car battery has the chance to last up to six months. Just like any other car battery, it will need charging, but not as often as if it were attached. Giving the battery a charge around every 12 weeks is a good rule of thumb.
Is it bad to leave a car battery dead?
While normal sulfation is reversible, excessively draining a battery, or leaving it in a state of discharge, will allow the soft lead sulfate to crystallize. At that point, charging the battery will still cause some of the sulfation to reverse, but any crystallized lead sulfate will remain on the plates.
What can cause a car battery to die overnight?
Leaving the headlights on can kill a weak battery in the amount of time it takes you run a short errand like shopping for groceries, but even a small interior dome light can drain a battery dead overnight.
What should I do if my battery dies after driving?
If it dies after driving, then check the altinator as tazz says. I’ve it dies while sitting still, then you have a drain or short in the electrics… need to insert an ammeter in series with the battery, pull all the fuses, and replace them one by one ’til you find the bad circuit. Try another battery.
Why does my Pontiac Solstice battery keep dying?
At least one was a brush/contact issue where the starter wouldn’t work if the armature was in a particular position. Similarly, an intermittent starter relay could cause the same symptom. Two weeks ago my car was dead, charged battery and car was okay for an hour but then battery died again.
Why does my car battery draw power in the morning?
If you know the battery is good because it has been replaced recently and it’s dead in the morning there is an electrical draw causing this problem. There are several “live” electrical circuits that bypass the ignition switch that can draw electrical power when the key is in the off position.