OBDII bluetooth power always on

SouthArk370Z · 04-19-2013, 04:54 PM

Quote:

Originally Posted by lineyho

I bought an OBDII bluetooth scanner which is powered on even when the car is off. There is no on/off switch on it. The led is lit. It's a battery drain issue. I have not checked the actual draw on the battery yet, but the unit is slightly warmer than the iother plastic nterior componets sitting overnight. Is it typical that all these units are on once they are plugged in and has anyone checked the draw ? My unit was purchase off amazon, but it is probably the same as all the other Chinese units on Ebay. Thanks

I have an OBD-to-USB adapter and a USB temperature module that stay powered up all the time. No problems so far in my DD. If I were going to go a week or more without driving the car, I'd unplug everything.

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