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      01-15-2020, 10:17 PM   #19
335i101
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Drives: 2008 E60 M5
Join Date: Dec 2010
Location: ND

iTrader: (2)

It was 20 below and my f85 sat outside all day. I took a short trip to the hardware store and got a "battery drained, start car and drive for a long distance" or something like that.

Went home and hooked it up the the c-tek for the night. No other issues.

Does this mean the battery is shot, or just a combo of sitting outside at -20 with minimal driving in between trips for the last 3 days?

At home, it is in a heated garage.

Do you know at what voltage the warning is triggered??

Thanks
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