Can i leave the battery charger connected to the car during all winter season?

fulike · 12-19-2020, 02:44 PM

Hi!

I have an F32 435I XDrive BMW (2013) and i don't use it in the winter season.
Can i leave the charger connected to the car during all winter to maintain battery voltage?
Or this is harm anything?
The car is in a garage that is not heated.
I have a CTEK MXS 5.0 charger.

Astone22 · 12-19-2020, 03:32 PM

I don't see any harm in leaving it connected! I have left my CTek connected for weeks while I was out of town. It won't over charge the battery.

Billfitz · 12-19-2020, 05:15 PM

No harm at all. I only drive on average once a week in winter, my maintainer is plugged in the rest of the time.

im_an_alien · 12-20-2020, 12:27 PM

Mine is on a charger thxgiving to easter....six months straight. CTEK charger. I don't drive the f30 much due to a combination of covid and having too many wheels. Might sell it, barely did 4k this year...but I digress...

Skyhigh · 12-20-2020, 01:38 PM

Most chargers have a "maintainer" function intended specifically for that. I however do not like the thought of having the battery (and car) hooked up on an electrical socket whilst I am a few thousand km away on holiday, so I typically charge it fully just before I leave and again when I come back, if needed.

fulike · 01-29-2021, 04:15 PM

Thanks the answers!
I left about a month plugged in the car... I started the car at the last week and its all ok!
It's a great solution when I don’t use the car in the winter.

12-19-2020, 02:44 PM	#1
fulike New Member 0 Rep 4 Posts Drives: BMW 435I XDrive (2013) Join Date: Dec 2013 Location: Hungary iTrader: (0)	Can i leave the battery charger connected to the car during all winter season? Hi! I have an F32 435I XDrive BMW (2013) and i don't use it in the winter season. Can i leave the charger connected to the car during all winter to maintain battery voltage? Or this is harm anything? The car is in a garage that is not heated. I have a CTEK MXS 5.0 charger.
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12-19-2020, 03:32 PM	#2
Astone22 First Lieutenant 86 Rep 388 Posts Drives: F30 320 xdrive, f32 428 Join Date: Mar 2017 Location: Stl iTrader: (1)	I don't see any harm in leaving it connected! I have left my CTek connected for weeks while I was out of town. It won't over charge the battery.
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12-19-2020, 05:15 PM	#3
Billfitz Lieutenant General 8620 Rep 16,671 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	No harm at all. I only drive on average once a week in winter, my maintainer is plugged in the rest of the time.
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12-20-2020, 12:27 PM	#4
im_an_alien Lieutenant Colonel 1247 Rep 1,630 Posts Drives: 2016 340i Join Date: Jul 2019 Location: Florida/NH iTrader: (0)	Mine is on a charger thxgiving to easter....six months straight. CTEK charger. I don't drive the f30 much due to a combination of covid and having too many wheels. Might sell it, barely did 4k this year...but I digress...
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12-20-2020, 01:38 PM	#5
Skyhigh Brigadier General 1980 Rep 3,988 Posts Drives: BMW F36 Join Date: Apr 2018 Location: Europe iTrader: (0)	Most chargers have a "maintainer" function intended specifically for that. I however do not like the thought of having the battery (and car) hooked up on an electrical socket whilst I am a few thousand km away on holiday, so I typically charge it fully just before I leave and again when I come back, if needed. __________________ "Large increases in cost with questionable increases in performance can be tolerated only in cars and women."
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01-29-2021, 04:15 PM	#6
fulike New Member 0 Rep 4 Posts Drives: BMW 435I XDrive (2013) Join Date: Dec 2013 Location: Hungary iTrader: (0)	Thanks the answers! I left about a month plugged in the car... I started the car at the last week and its all ok! It's a great solution when I don’t use the car in the winter.
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