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Why my Battery is Dead?


oskar27

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2016 Edge Titanium, FWD, 2.0L EcoBoost (leased new for 4 years and then bought my lease). Always serviced at the dealer, no problems, change the battery myself about 2 years ago. In the winter I have a digital charger and used it occasionally but not in the summer. Went out today shopping, stopped in few places and in my last stop when I went to start - no luck, says something like "...power is off to conserve battery....". Friend suggest to boost and did it and started like new. Saturday today so dealer is closed but planing to go on Monday. Car is always parked inside my garage with all doors closed and windows open. Any ideas to trouble shoot myself? Thanks

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Thanks for the tip however searching there are no Autozone outlets in my area (Quebec). I'm charging my battery now and it looks like its completely dead so there must be something wrong in the charging system. My charger has 4 indicating lights to indicate the progress and after 2 hours it still blinks on light one (when the 4th light blinks the battery is fully charged).

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Remember years ago when I had a bad battery the engine will turn slow and eventually will start if I was lucky. However with the current problem I have in my Edge after the first few stops I did the engine turn once or twice and started like new but in my last stop the battery was dead. That I don’t understand how the battery went dead instead of going dead "slowly" meaning it will turn the engine but at very low RPM.

 

Any explanation to make me understand what went wrong?

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Any explanation without testing would be a thumb-suck.

 

Testing is what's needed, and the "Autozone" testing suggestion was meant to be an example of the service such stores offer, and most likely some in Canada do the same.

 

A dead/discharged battery could be the symptom of a failed/failing battery or a parasitic drain or a charging system failure.

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