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99 of 108 people found the following review helpful
on January 14, 2013
Summary:
The product I received was not able to supply the advertised current with the supplied USB cable or any other USB cable. The supplied USB cable would never be able to supply >500mA regardless of the charger, AC or USB. I needed to modify the 2.1A port in able to draw the advertised current. I needed to modify a USB cable to draw the advertised current from the non-modified 1A port.

Detailed Description:
Out of the box, this charger will not provide the advertised 2.1A or 1A to your USB device. I used my HTC Rezound android phone and the Battery Monitor app to see two things: 1) The charge mode when plugged into each USB port, and 2) The amount of current being sourced to the phone.

1) The phone only recognized the "USB" charge mode, and not "AC" charge mode. In the "USB" charge mode, the phone will limit itself to 500mA only. In "AC" charge mode, the phone will remove the 500mA restriction and take as much power as it can handle. I used both the supplied USB cable and ones that came with AC adapters that when plugged in, indicate "AC" charging. There was no USB cable that I tried that allowed AC charging from this product.

After some research, I found that the 2 inner pins (data +, data -) on the physical USB connector need to be shorted together in order for the phone to recognize AC charging. I opened this charger and soldered the 2 data pins together on the 2.1A port, but left the 1A port alone. Using a USB cable known to source >500mA from an AC adapter, I connected my phone to the charger's 2.1A port in the car. The charge mode indicated "AC" and no longer "USB". I then removed the cable from the 2.1A port and plugged into the unmodified 1A port, and the phone indicated "USB" charging.

I then used the supplied USB cable in both ports, but the phone only indicated "USB" charging for each one. I tried the cable on an AC adapter and the phone still indicated "USB" charging. I disconnected the cable and sliced it open to find that there were no wires for data + or data - (the 2 inner pins). This means that regardless of the charger, this cable would not allow full-rate charging at 2.1A or 1A since the USB device would see data + and data - as an open circuit, instead of a short circuit, and limit itself to 500mA.

2) After the soldering modification, I witnessed current rates on the phone via the Battery Monitor app exceeding 900mA from the 2.1A port, which is the net amount of current going to the battery after supplying power for existing phone functions (CPU, screen, radios, etc).

Further, I took another USB cable that has data lines, cut open the outer insulation and spliced together the 2 data lines (green & white insulation). After re-insulating the cable, plugged it into my phone and the 1A port (the not modified port). The phone indicated "AC" charging and >500mA net current to the battery.
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11 of 11 people found the following review helpful
on November 21, 2012
My experience with this product has been very positive. My micro usb car charger's wire recently split exposing the wires and I thought it best to replace it sooner rather than after having a short. I got this product as a replacement and figured the extra port would be beneficial for additional charging of my higher powered devices such as my ipad or Nexus 7 while I charged my phone or ipod. The charger is very sturdy, sleek looking and is the right size for my car and has a cool blue light that glows to let you know when it is powered. The light is strong enough that it is visible during the day. It also is sturdy and compact if you want to move it between cars. I was very impressed how well this compact and sturdy device performed. It was able to charge my Android phone(with an extended battery connected) with the 1 amp port much more quickly than my old micro usb charger and was able to also charge my tablets simultaneously with my phone using the 2 amp port at a very fast rate. I didn't realize just how much being able to charge two devices simultaneously would be appreciated and I find myself charging ipods and tablets as I drive along with my phone all the time now. I also like having the option of charging my device at 1 A or quicker using the 2A port provided. The included micro usb cable is also a great bonus as is knowing that I can replace the wire if necessary and won't have to replace the whole unit, unlike my old one piece charging unit. I am very impressed with this sleek, efficient and powerful little device's charging capabilities while driving and am very glad to have replaced my older less functional device. I would definitely recommend using this device for all of the features above.
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20 of 24 people found the following review helpful
on November 21, 2012
I have to say this is the only charger that could charge my GS3... I've used so many not realizing that they were my older I phone chargers. I didn't know the whole 2A and 1A difference. But this does the job! I could charge my wife's I phone and my Android phone at the same time.

I'm just a little upset that it stated 15w on the Site yet the box says it's 10w. Honestly this was the only reason I went with trent. I was told about another brand called powergen. It's listed @ 10w 2A charger for a dollar less. Oh well, I guess they got me? It is kinda deceiving to do this... That's why I gave it 4 stars....
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4 of 4 people found the following review helpful
on February 15, 2013
I want to use my Nexus 7 (N7) tablet as GPS navigation (BIG SCREEN!) and bought this charger, thinking that it will delivery enough juice (3.1A) to power the N7 while being used.

My N7 was in this state:
- ON
- Brightness 75%
- Wifi ON and tethered to my cellphone
- Google Navigation running.

Even though N7 shows that it is "Charging" at AC rate, the battery actually goes down. So it looks like it does NOT charge the N7 while it is being used.

However, if the N7 is OFF, then it charges, albeit slowly.
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4 of 4 people found the following review helpful
on November 19, 2012
The New Trent 1 Dual high-speed USB charger has a nice, shape, which fits comfortably into my car's DC slot, and a gentle
blue LED light that signals that the charger is functioning. The supplied USB cord is long enough to power a 
device that may have to be stored in a seat pocket, etc. Over an hour's
 drive it got warm, but not unreasonably so, which suggests that it discharges heat in a safe manner.

I tested the 2A slot with an ipad 3, and the 1A slot with a Samsung Android
phone. Both charged quickly. I then individually ran their mp3
 audio through the car's sound system while charging - a topic not addressed by many 5* reviews. The ipad sounded fine,
 but there was a lot of hiss and cycle hum with the Android, hence the 4 stars. All together a great charger if you aren't simultaneously going to play music through your phone!
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3 of 3 people found the following review helpful
on January 26, 2013
A lot of the reviews on this are a little misleading. The included micro-USB cable is NOT a high speed charging cable. The data lines of the cable need to be tied together for it to have high speed charging capabilities. Thus, the included cable is limited to 500mA, regardless of whatever it is plugged into. This gives the impression that the charger does not provide the claimed 1 or 2 amps, when in fact the cable is limiting the charging. For some, 500mA is only enough to power the device and not actually charge it, giving the illusion that the charger doesn't even work. As far as the person complaining about the 10W vs 15W, it definitely provides a total of 15W, but with a max of 10W on one device (2A*5v=10W). It looks like the USB cable was thrown in last minute as an addition to the charger, but unfortunately it may have been better to not include it so as not to confuse the end user. Bottom Line: If they are going to include a USB cable, make sure it is a charging cable that can handle the high current.

Ignoring the cable and focusing on the charger:
PROS:
+Inexpensive, especially for dual ports
+Snug fit of charger and USB connections
+Aesthetically pleasing
+Seems durable enough
CONS:
-A little long; I would prefer it to be flush with the car socket

Overall a great deal. Just be aware of the limitation of the included cable and get your own high speed charging cable. Hopefully the company can fix this by including one in the future. For the charger itself, I can definitely recommend.
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3 of 3 people found the following review helpful
on January 5, 2013
The usb cable that came with the unit didn't charge my Galaxy Note II at 2A. I replaced the cable with an old one that came with my old HTC EVO and now the Note 2 shows it's charging at 2A. (go into Settings, Battery, at the very top it will tell you if Charging at AC or USB. 2A is AC)

I also purchased the New Trent Arcadia Rapiduo (1PC) 10W 5V/2A Dual Port high-speed USB car charger w/ Free Full Speed Micro-USB Charging Cable (IMP80C) and it charges correctly out of the box.
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3 of 3 people found the following review helpful
on November 14, 2012
I recently purchased a Nexus 7 Tablet, and along with my Samsung Galaxy S2, needed a car charger that would be able to accommodate both products. So I purchased this simple charger because it has ports for both. So far, in my experience it works well, just as expected. I was able to use GPS on my phone for about an hour, and with concurrent charging my battery only dropped by 5%, while it would usually drop by 60% (~1% per minute of GPS use without charging).

Positive Features:
-Black plastic looks shiny and expensive (like my OEM Samsung Galaxy S2 wall charger)
-Blue LED light shows user when device is plugged in properly
-2 USB ports, with one for android smartphone and other for tablet
-Fits securely in the cigarette lighter, and does not shift out of position with normal movements

Areas for Improvement:
-It comes with a normal USB to micro USB cord, which could be better if it were the retractable type
-It is rather large, and could certainly be smaller
-The 2 USB ports can be hard to reach and/or differentiate (especially while driving). It would be better if they were angled on separate sides of the charger (like the New Trent Arcadia Rapiduo).
-Ideally, I'd like a charger that is able to actually charge my phone while GPS is in use, but I haven't seen this from any car charger thus far.
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2 of 2 people found the following review helpful
on February 13, 2013
It was a good deal in a sense that it was a 2 for 1 deal. But it was an overall disappointment. One of the port car chargers works, but it is not high-speed as it says. It charges very slow. The 2nd port car charger is defective. The power goes on and off... so its pretty much useless.
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2 of 2 people found the following review helpful
on February 6, 2013
Not charging the new galaxy note 10.1 .As mentioned 15w 5v@3 but not charging the New Samsung Galaxy note 2
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