USB port question: power and connectivity

Apr 2, 2015 | 09:54 PM

cheerful

Thread Starter

Member

Joined: Nov 2014

Posts: 213

Likes: 6

C300

USB port question: power and connectivity

Just got my car today. One thing I noticed is that the USB port appears to have power even with the engine off. Is this case?

If so, do I need to worry about leaving a device plugged in and drain the car battery?

Another thing is if I plug a Windows CE device, it should show as connected to a computer. Is there any setting to change?

thanks

Last edited by cheerful; Apr 2, 2015 at 09:59 PM.

Apr 3, 2015 | 03:04 AM

trustoryson

Junior Member

Joined: Mar 2015

Posts: 21

Likes: 0

From: Los Angeles, CA

2015 C300 4-Matic

Quote:

Originally Posted by cheerful

The power will turn off when you exit the vehicle, so you can leave it plugged in and it will not drain your car battery.

I didn't know anyone still used CE

cannot confirm whether it would show as a computer; but an important note, the port is powered at up to 1500mA which is a nice boost (charges your batteries faster) compared with previous models at 500mA.

Apr 3, 2015 | 04:25 AM

Eilers

Member

Joined: Nov 2014

Posts: 249

Likes: 1

S205

The power appears to remain on in my car. I noticed when i used an older type USB storage device that blinks when powered up.

Apr 3, 2015 | 08:53 AM

StanNH

MBWorld Fanatic!

Joined: Sep 2014

Posts: 1,822

Likes: 33

From: Whitefield, NH

2015 C300 Sport: Palladium, Premium, Multimedia, Leather, BLIS

I haven't tested this in my C300, but every other car I've owned has had a battery saver feature that shuts down any accessory after 10 or 20 minutes of use. I would be surprised if the W205 didn't have this type of battery protection.