Dead Battery

[mikejohnson]

Hey guys I have a 1990 lincoln mark Vll only 39,000 miles. I had a dead batery so, I just bought a new one. Worked fine for a few days. Since it's my fun car it sat for about 3 days dead battery again...recharged died again. I had the alternator tested it was fine. Unless I unhook battery takes 2-3 days to kill battery. Everything is still factory in car....any ideas??

 

[JoshMcMadMac]

Check the voltage regulator if you are sure that the battery and alternator are good. Then check your draw from the battery with a multi-meter with everything off. If you have an abnormally high draw on the battery you can start narrowing it down by checking the draw with certain electrics removed.

 

[mikejohnson]

Thanks I will give that a try.....