new battery ,nothing left on ! Car s dead.

Asked by Dec 04, 2015 at 09:26 AM about the 2011 INFINITI G37

Question type: Maintenance & Repair

Replaced battery new,car sat for a few days went to start it dead now today
started really slow.I'm in pennsylvania .But I'm worried something else is
going on.Cause old car starts fine.

2 Answers

228,715

Check the battery cable/terminals, and wiring. If they are OK, you have a parasitic draw on the electrical system, It take hours or diagnostic work to find the one circuit causing the issue. Search online for "parasitic Draw" If you are handy with a multimeter and pulling fuses, you might find your issue. Best to have the pro's find it for you.

3,650

Before chasing a parasite try FULLY charging ANY battery...or jump-starting the car and driving a half hour at speed to charge battery. If car won't start NEXT day try a second battery, as some NEW batteries don't hold charges. If SECOND battery fails same way look for a parasitic draw. I just replaced battery in G37x with supposedly "new" one that wouldn't charge, and was finally going to start looking for parasites, but decided to try a second new battery. Annoying, but better than chasing non-existent parasites!

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