Power cut off to 12v ports after cut shut off?

Roman G · 07-29-2015, 08:50 AM

How long does it take for the power to shut off to the 12v ports after the car is shut off?

I am running a dashcam and a 12v power source is plugged into the rear unit cigarette adapter ( behind arm rest and under rear ac ) and it will not shut off after I turn the car off. I waited for the lights to go out and it still wont shut off.

Does anyone know how long it takes? I don't want it to drain the battery, though I'm sure there is a fail safe built in to make sure if the battery is running low it will shut off everything so I can still start the car.

Zooks527 · 07-29-2015, 12:10 PM

The sockets in mine turn off somewhere after 5 to 10 minutes.

Easy way to time yours. Lock the car, walk into the camera FOV, wave, and walk off. Come back later to see how many minutes later the camera shut off.

Viffermike · 07-29-2015, 12:53 PM

I believe the 12V sockets (the ones in the cabin, anyway; not sure about the one in the trunk) are on the same time-delay circuit as the HU after shutoff which, IIRC from the manual, is 8 minutes.

EBM235 · 08-02-2015, 02:42 AM

Mine don't shut off. I've had a dash cam run for over 8 hours once by accident as I forgot to unplug. I use a usb adapter and just plug/unplug when I get in and out of the car . Bit of a hassel, but have yet to hardwire the camera

Roman G · 08-03-2015, 10:41 AM

Just to confirm, but does the car has a shut off switch to kill all power if the battery power is getting low, so you would still be able to start the car?

isthar · 08-10-2015, 02:16 PM

I want the answer cuz I want to know if I can/should leave a USB power thing connected at all times! (Yes, I know, the amps there must be minuscule.. but still! if it doesn't turn off...)

Roman G · 08-10-2015, 03:45 PM

So I noticed that when I had my G37s I always left the dashcam connected to a 12v plug and it would start whenever I start the car - meaning, Infiniti sends power to 12v cigarette adapter when you start the car.....

BMW, the 2er in particular, sends power to 12v cigarette adapter whenever you unlock it or open the trunk - I noticed this when you first unlock the car or open the trunk before unlocking the car, it starts recording the moment you press unlock or open the trunk button.

So yes, it does cut off power, and starts it right up as soon as there is any action on users part with the remote key fob.

07-29-2015, 08:50 AM	#1
Roman G Private First Class 98 Rep 168 Posts Drives: a few Join Date: Jul 2014 Location: world iTrader: (0)	Power cut off to 12v ports after cut shut off? How long does it take for the power to shut off to the 12v ports after the car is shut off? I am running a dashcam and a 12v power source is plugged into the rear unit cigarette adapter ( behind arm rest and under rear ac ) and it will not shut off after I turn the car off. I waited for the lights to go out and it still wont shut off. Does anyone know how long it takes? I don't want it to drain the battery, though I'm sure there is a fail safe built in to make sure if the battery is running low it will shut off everything so I can still start the car.
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07-29-2015, 12:10 PM	#2
Zooks527 Captain 310 Rep 886 Posts Drives: 2015 M235xi / 2005 Tacoma 4x4 Join Date: Jul 2009 Location: Mansfield, MA iTrader: (0)	The sockets in mine turn off somewhere after 5 to 10 minutes. Easy way to time yours. Lock the car, walk into the camera FOV, wave, and walk off. Come back later to see how many minutes later the camera shut off. __________________ 2015 M235xi coupe, Black Sapphire Metallic, Black Leather, Fineline Stream trim, Steptronic, xDrive, ZPP, ZTP, ZCW, ZDA, ZDB, 5DP, hk w/BimmerTech amp, Enhanced BT Prior 40 years: 67 BelAir wagon / 68 LeMans Tempest / 70 Mustang Mach 1 / 72 El Dorado / 78 Corvette / 81 Subaru GL wagon 4WD / 83 s10 Blazer 4x4 / 85 Bronco 4x4 / 96 Bronco 4x4 / 04 Passat 4mo / 09 BMW 335xi
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07-29-2015, 12:53 PM	#3
Viffermike Colonel 1753 Rep 2,942 Posts Drives: '18 black-n-blue 718 Cayman Join Date: Jan 2015 Location: Big D iTrader: (0)	I believe the 12V sockets (the ones in the cabin, anyway; not sure about the one in the trunk) are on the same time-delay circuit as the HU after shutoff which, IIRC from the manual, is 8 minutes. __________________ --Life is a journey made more exciting with a fast car.-- --Helmets are for closers.-- <<Current: "Blackened" '18 NBM Porsche 718 Cayman ... Gone (but not forgotten): "Blackened" MG '15 228i M Sport w/aFe filter/scoop, Hertz drivers, P3Cars multigauge, other goodies>>
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08-02-2015, 02:42 AM	#4
EBM235 First Lieutenant 89 Rep 310 Posts Drives: M235i Join Date: Apr 2014 Location: SoCal iTrader: (2)	Mine don't shut off. I've had a dash cam run for over 8 hours once by accident as I forgot to unplug. I use a usb adapter and just plug/unplug when I get in and out of the car . Bit of a hassel, but have yet to hardwire the camera
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08-03-2015, 10:41 AM	#5
Roman G Private First Class 98 Rep 168 Posts Drives: a few Join Date: Jul 2014 Location: world iTrader: (0)	Just to confirm, but does the car has a shut off switch to kill all power if the battery power is getting low, so you would still be able to start the car?
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08-10-2015, 02:16 PM	#6
isthar Second Lieutenant 60 Rep 273 Posts Drives: M235i xDrive Join Date: May 2015 Location: Boston, USA iTrader: (0)	I want the answer cuz I want to know if I can/should leave a USB power thing connected at all times! (Yes, I know, the amps there must be minuscule.. but still! if it doesn't turn off...) __________________ //M235ix Alpine White
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08-10-2015, 03:45 PM	#7
Roman G Private First Class 98 Rep 168 Posts Drives: a few Join Date: Jul 2014 Location: world iTrader: (0)	So I noticed that when I had my G37s I always left the dashcam connected to a 12v plug and it would start whenever I start the car - meaning, Infiniti sends power to 12v cigarette adapter when you start the car..... BMW, the 2er in particular, sends power to 12v cigarette adapter whenever you unlock it or open the trunk - I noticed this when you first unlock the car or open the trunk before unlocking the car, it starts recording the moment you press unlock or open the trunk button. So yes, it does cut off power, and starts it right up as soon as there is any action on users part with the remote key fob.
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