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  #1  
Old 11-06-2014, 05:41 PM
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Any USB Ports 2amp?

I thought I read somewhere that the USB port under the radio (2014 Summit) was 2.5amp. Is that right? What about the two behind the console? Are they standard 1amp USB ports?

iPhone 6Plus running Waze slowly drains the battery on 1amp. Need a 2amp port.

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  #2  
Old 11-20-2014, 08:22 PM
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Re: Any USB Ports 2amp?

sadly NO unless the GC is different than the Durango-

I played around in my Durango with an amp meter-

Wireless and/or USB phone charging

short version is front is like 1.5 ish and rears (while apparently 2 different circuits) are about 1.0 each.

And more importantly you need the "right" cable to max them out. Basically from my understanding of USB if you use a data/sync cable then the device will attempt to negotiate with the host. The host will supply 0.5 amps as the default amount and then depending on what USB version it can provide other higher increments. I used an amp meter with a data cable and my android phone and NONE of the 3 ports are smart enough to do the proper negotiation to get the phone anything beyond 0.50 amps.


this cable will draw every last bit for an android phone:
http://www.amazon.com/dp/B00HAAPREM/ref=cm_sw_su_dp

the same manufacturer has an adapter on amazon that will apparently do the same for apple products.


If you want the full 2 amps then a cigarette lighter adapter or a 110 wall wort is what you'll need.
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Old 12-03-2014, 11:04 PM
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Re: Any USB Ports 2amp?

Quote:
Originally Posted by michaelk View Post
sadly NO unless the GC is different than the Durango-

I played around in my Durango with an amp meter-

Wireless and/or USB phone charging

short version is front is like 1.5 ish and rears (while apparently 2 different circuits) are about 1.0 each.

And more importantly you need the "right" cable to max them out. Basically from my understanding of USB if you use a data/sync cable then the device will attempt to negotiate with the host. The host will supply 0.5 amps as the default amount and then depending on what USB version it can provide other higher increments. I used an amp meter with a data cable and my android phone and NONE of the 3 ports are smart enough to do the proper negotiation to get the phone anything beyond 0.50 amps.


this cable will draw every last bit for an android phone:
http://www.amazon.com/dp/B00HAAPREM/ref=cm_sw_su_dp

the same manufacturer has an adapter on amazon that will apparently do the same for apple products.


If you want the full 2 amps then a cigarette lighter adapter or a 110 wall wort is what you'll need.
For Android... (or anything NOT Apple)
Short the 2 data leads together (white & green).
This tells the device that it can pull as much power as possible (rather than limiting it to 0.5 amps).

I bought a dual port cigarette lighter adapter that has 1amp and 2.1 amp. Took it apart and soldered a 'short' across the 2 inner contacts and I get a nice fast charge off the 2.1amp port on my Android phones.

If you have never used a soldering iron, please find someone experienced. You don't want to short the power/ground to one of the data lines.
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Old 12-07-2014, 03:22 PM
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Re: Any USB Ports 2amp?

FYI.
This is the 12v to USB adapter I bought:
Amazon.com: Bracketron Universal Dual USB Car Adapter (UGC-298-BL): MP3 Players & Accessories

It's fairly easy to take apart and solder across the two inner data contacts on the circuit board which ensures that an Android device charges at full power.

I just need to buy/modify another one for my boat now as I use an old Android phone as my GPS speedo.
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Old 12-07-2014, 04:12 PM
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Re: Any USB Ports 2amp?

Quote:
Originally Posted by Todd3.6 View Post
FYI.
This is the 12v to USB adapter I bought:
Amazon.com: Bracketron Universal Dual USB Car Adapter (UGC-298-BL): MP3 Players & Accessories

It's fairly easy to take apart and solder across the two inner data contacts on the circuit board which ensures that an Android device charges at full power.

I just need to buy/modify another one for my boat now as I use an old Android phone as my GPS speedo.
If you're ever worried about enough USB power in the car, get one of these:

Amazon.com: PowerGen 4.2Amps / 20W Dual USB Car charger Designed for Apple and Android Devices: Electronics

It's awesome, I have two.
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Old 12-14-2014, 08:37 PM
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Re: Any USB Ports 2amp?

Quote:
Originally Posted by docpaul View Post
If you're ever worried about enough USB power in the car, get one of these:

Amazon.com: PowerGen 4.2Amps / 20W Dual USB Car charger Designed for Apple and Android Devices: Electronics

It's awesome, I have two.
If you use an adapter like that, you need to ensure you use a 'charging' cable for Android, otherwise you will only get 500mA output to your Android device.

On the other hand, if you don't have Apple products, you can just take it apart and solder the 2 inner (data) traces together.
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Old 12-16-2014, 08:38 PM
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Re: Any USB Ports 2amp?

Is there a way to turn off the 12V in the center console when the engine is off? I bought an adapter and have an Apple lightning cable hooked up to it. I imagine the drain would be minimal without it plugged into a phone but I'd rather not find out the hard way.
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