GLC Class (X253) Produced 2016-2022

USB Ports

Old Jun 4, 2016 | 03:27 PM
  #1  
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USB Ports

Does anyone know if the GLC's USB ports can be used to charge an iPhone? Or, are they a read-only type? It seems to me that, if they do provide charging capability, it must be a very low trickle charge at best.
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Old Jun 4, 2016 | 04:22 PM
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I think someone posted before that they are mostly for data but will charge slightly. I honestly haven't used them to charge so I can't say for sure. I ordered one of these for the socket in the ashtray and it works great -
Amazon.com: Aukey CC-S1 4.8A Dual USB Car Charger for Smartphones - Black: Cell Phones & Accessories Amazon.com: Aukey CC-S1 4.8A Dual USB Car Charger for Smartphones - Black: Cell Phones & Accessories
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Old Jun 4, 2016 | 05:32 PM
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Good solution. Thanks.
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Old Jun 4, 2016 | 06:20 PM
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It definitely charges the phone as well. It is also nice that I can close the center storage covers while using the USB cable.
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Old Jun 5, 2016 | 06:52 PM
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Okay, I see when the phone is connected to the USB there's a charge icon on the phone. But I'm assuming it's a very slow rate of charge (can anyone verify?); nonetheless it's a charge. My guess is that maybe 8 hrs on the USB will deliver a full charge on a 10% charged phone. Apparently, the USB has power even when the ignition is off; at least that's what the phone icon tells me.
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Old Jun 5, 2016 | 10:00 PM
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The usb charges my iPhone 6+. It definitely is a slow charge. I don't have a measuring device with me but am estimating 0.5A-1.0A based on the observed speed.

If you want to run a better test, plug in an ipad. If it can charge the ipad without the warning coming up, it will be at least 1A which it requires at min. without displaying the warning.
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Old Jun 6, 2016 | 12:28 PM
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Originally Posted by B2FiNiTY
The usb charges my iPhone 6+. It definitely is a slow charge. I don't have a measuring device with me but am estimating 0.5A-1.0A based on the observed speed.

If you want to run a better test, plug in an ipad. If it can charge the ipad without the warning coming up, it will be at least 1A which it requires at min. without displaying the warning.
The iPad test passed -- no low charge warning. I mentioned that the USB has power with the ignition off; however, once the car is locked power to the USB is killed.
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Old Jun 7, 2016 | 03:52 PM
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Those USB ports are definitely not the "fast charger" type. My phone indicates whether or not it is connected to a fast charger.
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Old Jun 7, 2016 | 03:55 PM
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I did buy this low profile dual port unit. 4.8amps (2.4A x 2).
Amazon.com: Aukey CC-S1 4.8A Dual Port USB Car Charger - Black: Cell Phones & Accessories Amazon.com: Aukey CC-S1 4.8A Dual Port USB Car Charger - Black: Cell Phones & Accessories
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Old Jun 8, 2016 | 07:21 AM
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From the charging speed I would assume it is the USB 1.0 and 2.0 specification, a standard port capable of delivering up to 500mA (0.5A)

I use a low profile lighter socket usb rated at 2.1 amps which quickly charges the phone and still allows me to close the console cover.
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Old Jun 8, 2016 | 08:44 AM
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I've been using the 115 volt receptacle at the rear of the console.

Don't know how the rate of charge compares with the other ports.
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Old Jun 21, 2016 | 11:06 AM
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The USB 12v charger several of us purchased is on sale right now...
http://deals.kinja.com/this-discount...-it-1781020928
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Old Jun 21, 2016 | 11:24 AM
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Originally Posted by JEVA
The USB 12v charger several of us purchased is on sale right now...
http://deals.kinja.com/this-discount...-it-1781020928
I bought three in the UK (two for my car, one for the wife's!) - they are on 'offer' as well on Amazon here :

https://www.amazon.co.uk/Charger-Ada...ords=usb+aukey
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Old Jun 27, 2016 | 04:16 PM
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Originally Posted by cyber3d
I did buy this low profile dual port unit. 4.8amps (2.4A x 2).
Amazon.com: Aukey CC-S1 4.8A Dual Port USB Car Charger - Black: Cell Phones & Accessories
If you leave in this 12v -> USB charger will it constantly draw power even when the car is not on? As in, if you don't drive your car for a few days will your battery be suddenly dead?

Not sure if the 12v outlets turn off when the car is off....
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Old Jun 29, 2016 | 01:15 AM
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Originally Posted by guido3
Does anyone know if the GLC's USB ports can be used to charge an iPhone?
Yes, it charges iPhone. I use it all time!
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Old Jun 29, 2016 | 03:37 AM
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Originally Posted by Mlbny
If you leave in this 12v -> USB charger will it constantly draw power even when the car is not on? As in, if you don't drive your car for a few days will your battery be suddenly dead?

Not sure if the 12v outlets turn off when the car is off....
They will turn off shortly after turning off the car. They are triggered by the ignition.
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Old Apr 29, 2017 | 04:27 PM
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Iphone wont't charge at USBs, C300 '15 won't charge iphone from either USB in center box anymore..... We have been charging since day one, actually we have never attached memory to it. Anyone know where the fuse is for this interface part? Or if it even has a fuse since its electronic? Or anything?

Last edited by CTHOR; Apr 29, 2017 at 04:49 PM.
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Old Apr 29, 2017 | 05:25 PM
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Well nevermind she had (2) bad lightning cables......ugh
Checked w memory stick, worked. tried third lightning cable, worked..........

GF will continue to charge with usb..... will get her the Aukey ccs1 thing

Last edited by CTHOR; Apr 29, 2017 at 05:30 PM.
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Old Apr 30, 2017 | 06:37 AM
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It will be perfect if they include a 12v socket beside the USBs. Allows me to use a higher amperage 12v socket usb adaptor while keeping the mess of wires hidden from view.

Last edited by vratenza; Apr 30, 2017 at 09:14 PM. Reason: Spellling corrections
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Old Apr 30, 2017 | 08:10 PM
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Charges mine, but seems to be slower than through a regular charger
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Old May 1, 2017 | 10:00 PM
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Someone once measured that it charges at 0.5A.

Which is the same as the wallplug that it comes with. Dont expect the speed to be like iPad chargers (which I use at home).

My Lexus charges at around 0.25A which is slow charge and when the GPS is on, the battery will not top up.
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Old May 3, 2017 | 02:08 AM
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Originally Posted by cyber3d
I did buy this low profile dual port unit. 4.8amps (2.4A x 2).
Amazon.com: Aukey CC-S1 4.8A Dual Port USB Car Charger - Black: Cell Phones & Accessories
I picked up two of these and a pair of Rampow cables for the front cigarette lighters. They work great and allow quick charging for my Galaxy S7.
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