Why does battery die if don’t use 2016 GT for 14days?

[Wheelc1]

Hi, I’ve got a 2016 GT, which I love, but if I go away for more than 2 weeks, the battery dies if I don’t disconnect it. Yet all the other cars I’ve had can be left for months… I’ve tried with and without alarm on, and no difference. Anyone else seen this?

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[Rapid Red]

I believe there are plenty of threads & answers to be found on the forum. Nothing unusual regarding the car and your dead battery.














Hint > battery tender

 

[TricarboNate]

Yep, completely normal. I killed two batteries during storage when I had my Mustang.

 

[Cobra Jet]

It's funny you mention the 14 days interval... Here’s a thread I posted a while back - the S550 can go into deep sleep mode after 14 consecutive days of not being driven or started:

https://www.mustang6g.com/forums/threads/s550-deep-sleep-mode.141450/

So it may not always be a “dead” battery.

If the issue is not related to the 14-day deep sleep mode, the battery could also have a bad cell and will never be the same again as far as holding a charge.

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