My 2009 mini drains the battery overnight

Asked by James Jun 28, 2020 at 04:13 AM about the MINI Cooper

Question type: Maintenance & Repair

Had trouble starting  engine, then when it did start no power,  now I've  have
the battery will not hold a charge overnight .put the battery on charger during  
the  day  take it off charger by morning  dead. Ive  replaced battery once same
event by morning  dead .

2 Answers
41,660

TDolby answered 4 years ago

You have a a drain which is called a parasite draw. You will need to have the car tested to see what circuit is drawing enough amps to discharge the battery. If you want to try yourself, there are some tutorials on how to perform the test on youtube.

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