My car's battery goes dead overnight. I charge it, get to work and it goes dead again. I have taken it to a repair shop they have checked the alternator and the battery and both checked out good and they have no idea what it could be. Overnight they put it on a machine or something to see if they could find what the draw? was from, but found nothing. When I get my car charged and started for a very brief second they is a message that pops up EL Power System, what is this? Help, what could be happening. My car is a 2002 xc70 Volvo.



tsherman1023

 

How old is the battery? And the alternator? Very rarely is your problem something exotic and hard to fix - usually just a bad alternator, connection or battery.

One thing you could try - is disconnect the battery and let it sit overnight. (if that is when it dies) Reconnect the next day. (yes it takes a few minutes to get to).

If the car has consistently been going dead every night - that test will tell you -

If it starts normally - there is something draining the battery when parked.

If it does not start normally - you have a battery that loses it's charge overnight when disconnected - so the battery is bad.

 

My battery is a few months old.
The alternator and battery have both been checked they both are good.
T