Power to USB connections/cig lighter when engine is off

[Long Run Nick]

Attempted search. I failed. Bought a $44 digital GPS HUD speed gauge. The device is supposed to turn off when you turn off the car. It has a USB cable that connects to a plug that goes in the cigarette lighter. When I turn the car off and wait some minutes(4-5) the device does not turn off.
Thanks for providing with info on this. I continue to learn so much from folks on the forum. Thanks. Nick

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[zuki_dan]

The cigarette outlet does not turn off when you cut the car off. It does have smart discharge though and will cut off if the battery voltage drops too much.

I use it to charge my old phone that I use as my V1 radar detector user interface.

 

[Long Run Nick]

The cigarette outlet does not turn off when you cut the car off. It does have smart discharge though and will cut off if the battery voltage drops too much.

I use it to charge my old phone that I use as my V1 radar detector user interface.

Thanks. How about the other USB connections? If I can get the devices USB cord to fit in the other USB ports in my car- is that a different circuit?
I will go see what happens. Thanks again.
Oh, I really like the device. I used as free standing- takes a few minutes to get GPS signal, then is spot on. Though sometimes when stopped it will reflect a few MPH.

 

[TruBlu16GT]

The USB ports should turn off after a few seconds. I notice the light goes out on my USB about 10 seconds after I shut the car off.

 

[Drugdealr]

USB cuts power right after you turn off the car. The cig lighter i believe stays on for 90 minutes after the fact that you have turned off the engine.

 

[berserker_sid]

the cig lighter also.. shuts down once ur car is completely shut down. I use that to charge my car. and as soon as i shut my car down with 10 15 seconds the charger goes off.

 

[Bill-O]

I've got a dash cam plugged into the cig lighter outlet. The dash cam, i.e., cig lighter outlet, stays on for 90 minutes after I turn the ignition off. Never fails, always 90 minutes. Just check yours out and it should do likewise.

 

[berserker_sid]

I've got a dash cam plugged into the cig lighter outlet. The dash cam, i.e., cig lighter outlet, stays on for 90 minutes after I turn the ignition off. Just check yours out and it should do likewise.

thats interesting because i tried with my navigator and phone charger it cuts off...

 

[Bill-O]

thats interesting because i tried with my navigator and phone charger it cuts off...

Will be interesting to see what others have to say as well.

 

[Long Run Nick]

I guess my question has resulted in several different outcomes concerning duration of USB/cigarette lighter power once the car is turned off. More comments welcome.
After all this, I unplugged the USB cord from the cigarette lighter gizmo. Plugged into a USB port. The device worked and turned off when I turned the car off. Reconnected to the cig lighter gizmo- now the device does not get power and turn on.
Geez, had Ford simply put a digital speed display option in the car, I would have saved $44 and some aggravation.
Keep fit my friends. Nick

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