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[Review] Tronsmart Quick Charge 2.0 54W 4 Port USB Car Charger

I have many chargers, but this one seems to be a winner for multiple ports with the added quick charge 2.0 port.
http://www.amazon.com/Qualcomm-Cert...mer-Included/dp/B00ZF7XLJU/ref=cm_rdp_product
I've had some more time reviewing this charger since I use it on a daily basis in my car. My original review is still true and can be found below. I've added a couple images of the product to show the quality of the finish as well as a size comparison between a couple other multi-port chargers I have. While this charger is the largest of my stash, it also provides the most charging ports while incorporating a quick charge 2.0 outlet. The size is a double edged sword in my opinion. Many 12v outlets are recessed, so the longer adapter of the Tronsmart charger can be quite beneficial. I know it would help in my Toyota Camry, but not so important in my Honda Odyssey. Due to the longer adapter size, I'm concerned I will one day drop something on it and damage my 12v outlet.
Anyways, on to the review.
Pros:
+4 USB charging ports (1 QuickCharge 2.0 + 3 auto detect 2.4Amp)
+Slim simple design
+No bright annoying LED
Cons:
-none to report (possibly the size)
The Tronsmart 4 port car charger is simply amazing. I have tested it thoroughly over the past week and have decided to use it as my primary car charger! I own many many car chargers, but there are very few that provide 4 powerful charging ports in such a compact design. This charger is rated at 54 watts, but all you really need to know is that it will charge all of your devices with ease. The primary advantage this car charger offers is the 4 port design with 1 being Qualcomm Quick Charger 2.0 certified. This means it is designed for long term use as new phones and products are just now being developed to work with this technology. The remaining 3 ports are not to be forgotten either, rated at 2.4 Amps each. They are also smart charging ports (Tronsmart calls them Volt IQ ports) which basically means the port will automatically sense and charge the connected device at its maximum rate.
I tested this charger using a variety of devices (Samsung Galaxy S6, S5, iPad, iPhone 6, and battery banks) and they all accepted the charge immediately and at similar charging currents as I've seen on with other chargers. My Galaxy S6 registers this charger as fast charging when connected to the Quick Charger 2.0 (blue) port. I used a Portapow V2 USB current meter to verify the charging rates while all four ports were in use. I alternated devices between the ports and the results are consistent with advertised rates. Through my experience testing many chargers, I've come to learn that the charging limitation comes down to either the charger, the USB cable, or the device itself. Rest assured that this car charger is not the limiting factor when you are maximizing your charging speeds.
I received this product at no charge in exchange for an honest review. I am using this charger on a daily basis as my primary charger, so I will update if I notice anything out of the ordinary. Please also let me know if you have any specific questions and I will do my best to answer them.

I agree. I also received this charger from Tronsmart, and it's been great!.
(Mine was sent for free, in exchange for my writing an honest review. [http://www.amazon.com/review/R9A6YSQ37WQZE] And, if I didn't like it, I wouldn't hesitate to say so. After all, it's a $20.00 item. Definitely not worth being a shill for that. Fortunately, I like it very much.)
The charger seems to be one of a number of quality items being manufactured in China, and repackaged under the Tronsmart, Anker, and Aukey brand. (Most of those items were purchased, including others from Tronsmart). But, this isn't a bad thing, as I've used many accessories from each over the past couple of years, and they've delivered good performance at a good price.
My setup is a Nexus 6, while my wife uses (my old) Nexus 5. We both drive Honda CR-Vs. My N6 charges quickly using the Qualcomm QC 2.0 port, although it also charges well with the Volt IQ "intelligent" ports as well. My wife's N5 charges quickly, too, albeit without the QC 2.0.
What I like about this charger is that it's still relatively small, despite having the 4 ports. This is VERY HANDY when my kids are in the car for a long drive, and their own tablets are sucking down battery life. When used with a longer USB cable from Tronsmart (or, Anker, which I've also purchased), they can charge from the back seat.
I bought a single-port Tronsmart QC 2.0 car charger, as well as a two-port Aukey (one port QC 2.0, one a "smart" charging port), and though they all work well, this is the one I have stuck with. Dependable, good quality, and very reasonably priced. If you have more than two devices to charge in the car, you can't really do much better than this at this price-point.

Nice car charger, I have bought a note 5. And also find that tronsmart has the dual 2.0 ports car charger. Both of the ports have QC 2.0. I will get it when it is available at amazon

haic said:
Nice car charger, I have bought a note 5. And also find that tronsmart has the dual 2.0 ports car charger. Both of the ports have QC 2.0. I will get it when it is available at amazon
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Click to collapse
The model you are talking already list on amazon, check it here:
http://www.amazon.com/Tronsmart-Qua...TF8&qid=1441770789&sr=8-12&keywords=tronsmart
it's great this model comes with two micro usb cables.

I bought this charger and am mostly happy with it. It does charge at fast charger rates most of the time. Sometimes I have to plug it in a second or third time before the phone recognizes it as a fast charger. The problem I have with it, is it won't stay in the car outlet. It is so skinny, and the side spring contacts cause it to continuously eject from my jeep power outlet. It will pop out just far enough that it will stop charging with out noticing it. Might have to rig it with tape or something.
Sent from my iPad using Tapatalk HD

I bought the Tronsmart 2-port Quickcharge 2.0 Car Charger... Holy good god, Its become essential in my car for charging my S6 using GPS/Music Streaming. Never had any issues with my S6 or girlfriends Note 5.

Jumping Off the 3A Bus!

Considering how screwed up the 5V3A situation is, I decided to jump off that bus and order some regular, high quality, low price, 2.4A (per port) Aukey chargers that can be used with cheap ass cables that no one wants. They will be Type A to Type C so other phones and tablets can use them. And no QC 2.0 because they are about 1/2 the price and if QC 2.0 or 3.0 becomes an issue with other devices in my house, I will buy new ones. The car charger is $12.99 (They sell a bigger one for $6.99) on Amazon and the wall one is $7.99. Google's massive FUBAR solved!
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Yep don't know what half the smartphone world is on about with all this 3A rubbish.
How many people charge their phone over night - MOST
How many people are truly upset and really feel annoyed that their device is not charging at 3A to the point where they will go out their way to get 3A everything.
Chances are alot of these people come from using 1.2A chargers or turbo chargers or QI charging - did you see them whine about how slow it was back in those non 3A days ? not many
its just the utterly butt hurt whiners and those who suck the exlixer from googles every word andneed 3A leads / chargers.
if you charge over night a 1A or a 1.2A or a 2A or QI wont make any difference when you wake up in the morning.
A have a 3A from the phones box and a turbo charger and "normal" chargers from older phones and a 2.4A car charger and it charges plenty fast enough.
for those who wish to tell me that the turbo charger wont work with fast charge go do one, I plug it in and it charges fast enough for me to not cry all over the internet simply beacuse some google pixel dude is reviewing usb leads and mine is not one yadda yadda.

Isn't the problem with cheapass (USB-C) cables is that they pull more power than the adapter can push? and possibly fry it?

hutzdani said:
Yep don't know what half the smartphone world is on about with all this 3A rubbish.
How many people charge their phone over night - MOST
How many people are truly upset and really feel annoyed that their device is not charging at 3A to the point where they will go out their way to get 3A everything.
Chances are alot of these people come from using 1.2A chargers or turbo chargers or QI charging - did you see them whine about how slow it was back in those non 3A days ? not many
its just the utterly butt hurt whiners and those who suck the exlixer from googles every word andneed 3A leads / chargers.
if you charge over night a 1A or a 1.2A or a 2A or QI wont make any difference when you wake up in the morning.
A have a 3A from the phones box and a turbo charger and "normal" chargers from older phones and a 2.4A car charger and it charges plenty fast enough.
for those who wish to tell me that the turbo charger wont work with fast charge go do one, I plug it in and it charges fast enough for me to not cry all over the internet simply beacuse some google pixel dude is reviewing usb leads and mine is not one yadda yadda.
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Neat.
catire said:
Isn't the problem with cheapass (USB-C) cables is that they pull more power than the adapter can push? and possibly fry it?
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Click to collapse
That is also my understanding. People can use any charging brick they prefer as long as they are using quality type A to type C cables that are designed to spec.

jTink010 said:
People can use any charging brick they prefer as long as they are using quality type A to type C cables that are designed to spec.
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Click to collapse
Exactly. Thank you.

catire said:
Isn't the problem with cheapass (USB-C) cables is that they pull more power than the adapter can push? and possibly fry it?
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Click to collapse
Both the phone and these chargers have over-current and thermal protection in the device circuits. Hence, the chargers won't try to provide more current than it can reliably deliver. No worries!

dwswager said:
Both the phone and these chargers have over-current and thermal protection in the device circuits. Hence, the chargers won't try to provide more current than it can reliably deliver. No worries!
Click to expand...
Click to collapse
I think what they are trying to say is, the problem is not on the charger itself, but on the cheap/wrongly spec'ed cables. If you had a bad cable which tries to pull 3A from any USB-A charger (which supports up to 2.4A), it would fry the charger.

ctbear said:
I think what they are trying to say is, the problem is not on the charger itself, but on the cheap/wrongly spec'ed cables. If you had a bad cable which tries to pull 3A from any USB-A charger (which supports up to 2.4A), it would fry the charger.
Click to expand...
Click to collapse
The issue is that the phone will think it can pull 3A because the cable design and the charger will try to deliver and will over heat and burn out. But the phone should have under-voltage lockout and the charger has both over-current and over temperature protection.

dwswager said:
The issue is that the phone will think it can pull 3A because the cable design and the charger will try to deliver and will over heat and burn out. But the phone should have under-voltage lockout and the charger has both over-current and over temperature protection.
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Click to collapse
...which is not even needed on a 3A charger because it supports the 3A current pull. By switching to another charger and lowering the maximum current output, you are actually increasing the risk of a fire, because now your faulty cable will try to pull 3A (when it shouldn't) from a 2.4A charger.

ctbear said:
......you are actually increasing the risk of a fire, because now your faulty cable will try to pull 3A (when it shouldn't) from a 2.4A charger.
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Click to collapse
Repeat after me, a cable represents an open circuit to the charger and draws no current. The phone is the load. The cable presents resistance to the flow of current.

Lightning deal
well reading more, 2.1a and 1.0a

dwswager said:
Repeat after me, a cable represents an open circuit to the charger and draws no current. The phone is the load. The cable presents resistance to the flow of current.
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Click to collapse
Except that a usb cable is more than just a conducting wire. There is a lot more information the phone requires before it "negotiates" how much current it should draw from the power source. The reason why this even makes the news is that some cables (with a USB-A end) uses a much lower resistor pullup value that expected in the USB specifications, which leads the phone to believe that the other end is capable of producing the 3A current (according to USB-C specs). This has been reported numerous times by different articles and mentioned by the Google engineer himself, and can be found in the actual USB-C specification document. If you don't believe me, at least read his reviews on Amazon. He certainly knows and explains a lot better than I do.

The Amazon basics car charger that I already have adds juice to the phone while Waze is running. Good enough for me. I don't charge my phone overnight, I just charge it when I get up before I leave for work. Leave with 100% battery every day

dwertz said:
well reading more, 2.1a and 1.0a
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Click to collapse
Without a link, I would suspect this is a standard dual port charger with one port 2.1A and the other 1A!

ctbear said:
Except that a usb cable is more than just a conducting wire. There is a lot more information the phone requires before it "negotiates" how much current it should draw from the power source. The reason why this even makes the news is that some cables (with a USB-A end) uses a much lower resistor pullup value that expected in the USB specifications, which leads the phone to believe that the other end is capable of producing the 3A current (according to USB-C specs). This has been reported numerous times by different articles and mentioned by the Google engineer himself, and can be found in the actual USB-C specification document. If you don't believe me, at least read his reviews on Amazon. He certainly knows and explains a lot better than I do.
Click to expand...
Click to collapse
Don't get me wrong, any cable should be designed to USB specifications. But so should the devices! The Fundamental problem is 5V/3A. Google apparently designed the phone around the connector spec instead of the USB 2.0 specification. 3A is the design requirement in USB Type C spec for what a standard cable must be able to handle, not a USB power specification. Look around and count the number of 5V/3A USB devices you find. I can only think of one...a specific Asus Transformer model that came with a captive 5V/3A charger with a Micro USB connector and warning labels not to plug it into any other USB devices. Even so, the Transformer did port detection so it wouldn't try to over draw from compliant source ports.
The BC1.2 (Battery Charging Spec) outlines three distinct types of USB port and two key monikers. A "charging" port is one that delivers currents higher than 500mA. A "downstream" port signals data as per USB 2.0. The BC1.2 specification also establishes both how each port should appear to the end device, and the protocol to identify what type of port is implemented. The three USB BC1.2 port types are SDP, DCP, and CDP:
1. Standard Downstream Port (SDP) This port features 15kΩ pulldown resistors on both the D+ and D- lines. The current limits are : 2.5mA when suspended, 100mA when connected, and 500mA when connected and configured for higher power.
2. Dedicated Charging Port (DCP) This port does not support any data transfer, but is capable of supplying charge currents beyond 1.5A. It features a short between the D+ and D- lines. This type of port allows for wall chargers and car chargers with high-charge capability without the need for enumeration.
3. Charging Downstream Port (CDP) This port allows for both high-current charging and data transfer fully compliant with USB 2.0. It features the 15kΩ pulldown resistors necessary for the D+ and D- communication, and also has internal circuitry that is switched in during the charger detection phase. This internal circuitry allows the portable device to distinguish a CDP from other port types.
Bottom line - if this phone is of such poor design that it starts fires, what will the common element of all those fires end up being? The Phone!

dwswager said:
Don't get me wrong, any cable should be designed to USB specifications. But so should the devices! The Fundamental problem is 5V/3A. Google apparently designed the phone around the connector spec instead of the USB 2.0 specification. 3A is the design requirement in USB Type C spec for what a standard cable must be able to handle, not a USB power specification. Look around and count the number of 5V/3A USB devices you find. I can only think of one...a specific Asus Transformer model that came with a captive 5V/3A charger with a Micro USB connector and warning labels not to plug it into any other USB devices. Even so, the Transformer did port detection so it wouldn't try to over draw from compliant source ports.
The BC1.2 (Battery Charging Spec) outlines three distinct types of USB port and two key monikers. A "charging" port is one that delivers currents higher than 500mA. A "downstream" port signals data as per USB 2.0. The BC1.2 specification also establishes both how each port should appear to the end device, and the protocol to identify what type of port is implemented. The three USB BC1.2 port types are SDP, DCP, and CDP:
1. Standard Downstream Port (SDP) This port features 15kΩ pulldown resistors on both the D+ and D- lines. The current limits are : 2.5mA when suspended, 100mA when connected, and 500mA when connected and configured for higher power.
2. Dedicated Charging Port (DCP) This port does not support any data transfer, but is capable of supplying charge currents beyond 1.5A. It features a short between the D+ and D- lines. This type of port allows for wall chargers and car chargers with high-charge capability without the need for enumeration.
3. Charging Downstream Port (CDP) This port allows for both high-current charging and data transfer fully compliant with USB 2.0. It features the 15kΩ pulldown resistors necessary for the D+ and D- communication, and also has internal circuitry that is switched in during the charger detection phase. This internal circuitry allows the portable device to distinguish a CDP from other port types.
Bottom line - if this phone is of such poor design that it starts fires, what will the common element of all those fires end up being? The Phone!
Click to expand...
Click to collapse
Actually no. The phone is compliant with the USB-C spec, which allows for considerably more than 3W (See: the Apple Macbook USB-C charger, the Chromebook Pixel USB-C charger and so on.) If you are using a C->C cable, with a compliant C charger, there should be no issue. The issue comes into play with a C->A cable which is not compliant, which causes the phone to think it's got a C connection and thus try to draw more power (3W) than the power supply can put out (effectively, it shorts out the power supply.) This can smoke the power supply. Literally.
Solution: (a) Use only C->C charging (this is your best bet, since it is the fastest) or (b) use a compliant C->A cable with any USB A charger. The phone will then negotiate an appropriate charging rate, either very slow (straight USB) or BC 1.2 (if available) which will still be slower than C->C.
Personally, I'd just stick with C->C and not worry much about the cable, *except* if you are using a C->A cable for data purposes, in which case, choose that cable wisely or risk frying your USB port.

I personally will be getting this http://goo.gl/CXIaHi to replace my car charger and possibly a second home charger. Along with getting a Type C - C cable from Google to eliminate any cable concerns. If you stick with Type c-c cables for charging you will be more than fine. I don't plan on charging my 6p using a Type A - C cable ever anyways.
Specifications:
Input (Micro): 5V/9V/12V 2A Max
Input (Type-C): 5V/3A Max
USB Output: 5V/ 2.4A
Type-C Output: 5V/3A Max
QC 2.0 Output: 5V/2.4A, 9V/1.5A, 12V/1.2A Max

dwswager said:
Bottom line - if this phone is of such poor design that it starts fires, what will the common element of all those fires end up being? The Phone!
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Click to collapse
Yes, because that's what a company like google willingly intends to do. Provide a phone that is capable of burning down houses and cars and entering into massive lawsuits in the process...because that's smart business.
It seems to me that companies are just inaccurately advertising to make a quick buck out the gate. They know that they can seriously capitalize on a situation when newer technology is involved. Doesnt that seem a little more feasible? Most consumers read reviews and only care the cable has proper connectors, a decent length, and doesnt feel thin and cheap. Most consumers dont realize how much more goes into cables as you can tell by 98% of the reviews.
At this point I'm just waiting for Google to get more cables in stock in the Play Store because the price is the just about the same as all these off brand cables and I feel they should work better since they make the damn phone.

ctbear said:
Except that a usb cable is more than just a conducting wire. There is a lot more information the phone requires before it "negotiates" how much current it should draw from the power source. The reason why this even makes the news is that some cables (with a USB-A end) uses a much lower resistor pullup value that expected in the USB specifications, which leads the phone to believe that the other end is capable of producing the 3A current (according to USB-C specs). This has been reported numerous times by different articles and mentioned by the Google engineer himself, and can be found in the actual USB-C specification document. If you don't believe me, at least read his reviews on Amazon. He certainly knows and explains a lot better than I do.
Click to expand...
Click to collapse
I'd be interested in reading his reviews, do you have a link?

DebauchedSloth said:
Actually no. The phone is compliant with the USB-C spec, which allows for considerably more than 3W (See: the Apple Macbook USB-C charger, the Chromebook Pixel USB-C charger and so on.) .
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Click to collapse
BINGO...and that is the fail! The Type C Spec is not a power spec, it is for the design of the connectors and cables which happen to carry power! You do not design a device around the specification for a 20 cent piece of metal. You design the device around the USB 2.0, 3.0 or 3.1 specification so it is interoperable with connected devices and when you decide to use a Type C connector, that spec also gets added to your design requirements. It does not replace the USB 2.0 specification which includes Battery Charging and USB Power Delivery.
BC1.2 requires comparing D- to Vdat-Ref at detection and then there are over and under voltage compliance allowing the PD to disconnect and renegotiate.
Under USB specifications, using a Type C connector you can deliver up to 100W. The Type C Spec is Item 34 in both the USB 2.0 and 3.0 specs. Point is, you don't get to pick and choose only what you want out of the larger spec and ignore the other applicable parts.
If a plethora of 5V/3A USB Type C products start appearing, then Google will have set a new standard. However, the Z5 and Lumia 950XL, both Type C, both are reported to support QC 2.0 which doesn't have a 3A capability. Even QC 3.0 doesn't support a 3A. It has voltage range from 3.6V to 20V in 200mV increments, but tops out at 2A.

Confirmed Rapid Charging Combo (MBP + Techmatte USB-C Cable)

So i can confirm that the following combo works for rapid charging on this phone.
Please delete this if a thread like this exists already
my combo is my Macbook Pro Retina 13" from 2013 (i think). it has USB 3.0
Techmatte USB-C to USB-A, 5FT
http://smile.amazon.com/TechMatte®-...8&sr=8-1-spons&keywords=techmatte+usb+c&psc=1
the phone registers as rapid charging.
Check out the Ampere screenshot as well
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I haven't seen a laptop let alone a MB that supports 2-3A on a dedicated/non dedicated charging USB port. I could very well be wrong but we need a picture of the phone plugged into the laptop to prove that rather than a screenshot. I'm not saying you're not correct but we need better evidence to confirm it

I concur with his findings. I plugged an A to C cable I bought off amazon into my 2012 MBP and it registered as rapidly charging as well but I didn't test the speed in ampere as I figured it was wrong lol.
Sent from my Nexus 6P using Tapatalk

toyanucci said:
I concur with his findings. I plugged an A to C cable I bought off amazon into my 2012 MBP and it registered as rapidly charging as well but I didn't test the speed in ampere as I figured it was wrong lol.
Sent from my Nexus 6P using Tapatalk
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I used to have a MB Pro as well (2011?) and it never fast charged my phone at the time. I have long since moved on to a PC (that was my only mac ever) and since I don't use it to charge my phone I couldn't tell you whether its just a MB thing.

Anything over 2000mA shows as rapidly charging. 2000mA is 2/3rd the charging rate of the oem type-c charger. Make of that what you will.

Pilz said:
I used to have a MB Pro as well (2011?) and it never fast charged my phone at the time. I have long since moved on to a PC (that was my only mac ever) and since I don't use it to charge my phone I couldn't tell you whether its just a MB thing.
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Click to collapse
You're right. My MBP doesn't charge even my regular samsung devices fast so idk how the 6P shows rapid charge.
Sent from my Nexus 6P using Tapatalk

toyanucci said:
You're right. My MBP doesn't charge even my regular samsung devices fast so idk how the 6P shows rapid charge.
Sent from my Nexus 6P using Tapatalk
Click to expand...
Click to collapse
I thought I was crazy for a minute because I had a s3/Note 3 when I had my MB Pro and they never charged faster. I'm glad you can substantiate that since I no longer have a Samsung phone or MB.

Read all of the information written by Benson Leung and co. An improperly made A->C cable will register as rapid charging because the wrong resistors are in the cable and allows the device to try to pull more amperage from the USB port than USB Type A is meant to handle. You shouldn't try to do this, it's going to damage your USB ports on your devices, or make your chargers burn up.
USB Type A cannot rapid charge a Nexus 6P without it defying the specifications for USB Type A and potentially damaging your charging source. If you have a cable that does this, you should not do it.
Only rapid charging from C -> C cables is safe.

smeggysmeg said:
Read all of the information written by Benson Leung and co. An improperly made A->C cable will register as rapid charging because the wrong resistors are in the cable and allows the device to try to pull more amperage from the USB port than USB Type A is meant to handle. You shouldn't try to do this, it's going to damage your USB ports on your devices, or make your chargers burn up.
USB Type A cannot rapid charge a Nexus 6P without it defying the specifications for USB Type A and potentially damaging your charging source. If you have a cable that does this, you should not do it.
Only rapid charging from C -> C cables is safe.
Click to expand...
Click to collapse
Read Leung's reviews again!
He is correct that the cables he is reviewing have the wrong pull-up resistor according to the specs.
However, any potential negative consequences (never confirmed in his tests, just a possibility) are confined to the Chromebook Pixel and what it might do in a situation faced with this cable. It tells us nothing about any other product.
He has recently dropped the scare tactics and now limits his remarks to the failure of the cable to charge the Pixel.
"Specifically, these adapters do not charge the Chromebook Pixel 2015 because the adapters leave the C-C lines floating, where the specification requires a Rp pullup to Vbus to identify the cable as a legacy adapter or cable."
You can safely get more than 2A to the 6P via a Type A to Type C connection. Therefore, you will be (in Google's estimation) "Charging Rapidly". It generally takes an out of spec cable and specific chargers. The easiest way is the Google Chargers that are Type C however. But there are no Type C 5V/3A car chargers available yet. The closest we have seen is the Tronsmart Car charger that has been shown to deliver 2.7A to the Nexus 6P, but will not charge a Chromebook Pixel 2015 because it does not have the correct pullup resistor.

dwswager said:
Read Leung's reviews again!
He is correct that the cables he is reviewing have the wrong pull-up resistor according to the specs.
However, any potential negative consequences (never confirmed in his tests, just a possibility) are confined to the Chromebook Pixel and what it might do in a situation faced with this cable. It tells us nothing about any other product.
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It absolutely is NOT confined to the Pixel. The video posted here proves it. Any device capable of pulling more current than the charger is rated to supply will pose this problem.
dwswager said:
He has recently dropped the scare tactics and now limits his remarks to the failure of the cable to charge the Pixel.
"Specifically, these adapters do not charge the Chromebook Pixel 2015 because the adapters leave the C-C lines floating, where the specification requires a Rp pullup to Vbus to identify the cable as a legacy adapter or cable."
Click to expand...
Click to collapse
Scare tactics? He's informing consumers of an out of specification product which could be harmful. Including more information on the specifics of how he tested this isn't "dropping" a scare tactic.
dwswager said:
It generally takes an out of spec cable and specific chargers.
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Click to collapse
Slightly misleading: Any charging current over (approx) 2.0A will show as rapidly charging, which can be accomplished with in-specification and out-of-specification cables.
dwswager said:
The closest we have seen is the Tronsmart Car charger that has been shown to deliver 2.7A to the Nexus 6P, but will not charge a Chromebook Pixel 2015 because it does not have the correct pullup resistor.
Click to expand...
Click to collapse
Which demonstrates that the device is unsafe. It's rated for 2.4A, the Nexus 6p pulls 2.7A. The device is not not greatly exceeding it's own rated output, but it is still exceeding the rated output. The Pixel, being able to draw far more current, browned out the charger altogether.

Elnrik said:
It absolutely is NOT confined to the Pixel. The video posted here proves it. Any device capable of pulling more current than the charger is rated to supply will pose this problem.
Scare tactics? He's informing consumers of an out of specification product which could be harmful. Including more information on the specifics of how he tested this isn't "dropping" a scare tactic.
Slightly misleading: Any charging current over (approx) 2.0A will show as rapidly charging, which can be accomplished with in-specification and out-of-specification cables.
Which demonstrates that the device is unsafe. It's rated for 2.4A, the Nexus 6p pulls 2.7A. The device is not not greatly exceeding it's own rated output, but it is still exceeding the rated output. The Pixel, being able to draw far more current, browned out the charger altogether.
Click to expand...
Click to collapse
1. Considering that Leung's points are that the "out of spec" cable can lead to fires and won't charge a Pixel, if the video doesn't show a charger fire and it shows charging of other devices, then it is confined to the Pixel!
2. His real point is that a Pixel 2015 will not charge from a cable with the wrong pull-up resistor. He threw in the charger fire issue to get attention and it worked. That is all anyone discussed.
3. Yes, it can be achieved with in spec cables, but what we are really hoping for is greater than 2.4A from Type A to Type C chargers and cables and that should not happen with in spec cables.
4. It's called margin. Tronsmart has said that it is designed to output 2.7A so that within quality limits, no unit will output less than 2.4A. And that means some lucky guys will get the ones at the other end that will output more significantly more than 2.7A. It would only be unsafe if the overcurrent or over temperature protection circuits allow the device to run over capacity. The rating is the least it should do.

Rapid charging displayed on the phone does NOT indicate more than 2000ma charging. My video proves this, the phone shows "rapid charging" using the cable with the incorrect pull-up resistor even when it is hooked up to a charger that is putting out significantly less than 1 amp. The rapid charging message seems to indicate only that the phone *believes* it is hooked up to a 3-amp, type-C charger.
For the original poster, a 2013 Macbook Pro supposedly will output a regulated 900mah to non-apple devices and 1100mah to apple devices (ipad etc). If you are succesfully getting 2000+ma out of it I suspect that either you are somehow pushing the ports well beyond safe limits (which shouldn't be possible), or there is a measurement error using the "Ampere" software.

dwswager said:
But there are no Type C 5V/3A car chargers available yet.
Click to expand...
Click to collapse
that's not true, the vinsic is rated 5w/3a and I can pull that either via the type a or c port. tested with ampere on both the 5x and 6p

ackattacker said:
Rapid charging displayed on the phone does NOT indicate more than 2000ma charging. My video proves this, the phone shows "rapid charging" using the cable with the incorrect pull-up resistor even when it is hooked up to a charger that is putting out significantly less than 1 amp. The rapid charging message seems to indicate only that the phone *believes* it is hooked up to a 3-amp, type-C charger.
Click to expand...
Click to collapse
That is extremely good information to have. It supports using some method of monitoring charging beyond the stock charging notifications.

kellybrf said:
that's not true, the vinsic is rated 5w/3a and I can pull that either via the type a or c port. tested with ampere on both the 5x and 6p
Click to expand...
Click to collapse
Cool. That's the first I seen of a car charger that can output 3A. Seems this is badged under a number of different brands and other had reported those other brand can't get to 3A. I'm assuming you are talking about this Vinsic.
It is a shame it is not 5.4A so you could use both ports simultaneously and still get 3A out to the 6P. They will come...I hope!
---------- Post added at 08:37 PM ---------- Previous post was at 08:21 PM ----------
ackattacker said:
Rapid charging displayed on the phone does NOT indicate more than 2000ma charging. My video proves this, the phone shows "rapid charging" using the cable with the incorrect pull-up resistor even when it is hooked up to a charger that is putting out significantly less than 1 amp. The rapid charging message seems to indicate only that the phone *believes* it is hooked up to a 3-amp, type-C charger
Click to expand...
Click to collapse
That matches my experience too. And considering there is no fast charging technology employed in the Nexus phones, it makes sense that it is based on what the phone thinks the charger supply.

[Review]CHOETECH USB Type C Charger & USB Type C - Type C Cable Review

Hello,
I got a great discount from <MODERATOR EDITED - SPAM LINK REMOVED> on a USB Type C charger & USB Type C - Type C cable bundle for an unbiased review.
I had to pay a few Euro though but that was ok for me since it is always good to have some spare chargers & cables, just in case the stock ones break
CHOETECH USB Type C Charger:
<MODERATOR EDITED - SPAM LINK REMOVED>
The charger is slighty bigger in comparison to the stock charger you get from Google when you buy a Nexus 6P device.
The build quality is nice, I didn´t see any sharp edges. The text markings are easy to read too.
This charger can deliver a max. power output of 18W at following values: 5V @ 3A, 9V @ 2A or 12V @ 1.5A
Pictures:
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CHOETECH USB Type C - Type C Cable:
<MODERATOR EDITED - SPAM LINK REMOVED>
I got the 1m version of this cable. There is not much to say about it, it looks good and seems to be of a similar quality like the stock USB Type C - Type C cable you get from Google when you buy a Nexus 6P device.
Both plugs have a <MODERATOR EDITED - SPAM LINK REMOVED> text engraved into the plugs. The contacts seem to fit well, the diameter seems to be the same like the stock cable.
Pictures:
Tests:
I used the App Ampere for the tests in order to have a good guess, if the charger and the cable is a good replacement for the stock accessories.
I got similar values, even when I combined all pieces together. It seems that these items can deliver what CHOETECH mentions in the descriptions.
The phone is charged fast and the best readout I could get was about 2950mA which is pretty close to the 3000mA you would expect in theory.
The charger feels quite warm in comparison to the stock charger but I guess it´s still ok.
I´m happy with these items and I hope that these will last for a while.
Did you make similar experiences too ?

I can confirm this. Bought the charger and a 2m cable one month ago and I'm still very happy.

That´s great to hear. Any more opinions ?

I´m waiting for mine. This is really good replacement product..

Just thought I'd throw my 2 cents into the discussion.
I got these CHOETECH cables to review and I was quite impressed with them. In all honesty they performed identically to the cable that came with my 6p. I noticed that my phone wasn't charging as fast as it was advertised (with both stock and CHOETECH cables) and was a little confused by it. I'm a musician and travel alot and on a recent trip I charged up in my hotel room and it was as fast as advertised (0-100% in about 97 minutes). It was then that I realised the issue may be with the power at my house.
Anyhow, if you're in the market for some additional cables to add to your arsenal, these are a worthy addition!

I did the following combinations:
CHOETECH charger + CHOETECH cable: The peak current shown by Ampere was about 2950mA, this combination charges the phone as fast as the stock items.
CHOETECH charger + Stock cable: The peak current was also around 2950mA or slightly lower. This combination also worked well, I couldn´t see any differences.
Stock charger + CHOETECH cable: The peak current was also near 2950mA. The phone also charged fast.
Now there are a few things to consider:
1) Ampere or similar tools are not 100% precise and can only be used to get a good guess if everything works out fine.
2) Even the slightest mechanical variation of the cable can also increase the resistance of the cable and lower the output voltage and the current. This can be tricky with USB Type C but the tolerances are so small that you might never notice a decrease of performance around 1-2%.
3) The built in battery doesn´t have a 100% exact capacity of 3450mAh. It can also have a slight +- tolerance which will affect the time measured to charge it.
Most people won´t check the exact time needed anyway It doesn´t matter if your phone needs 1,5 hours to charge from 3% -> 100% or 1,49 hours

I bought the chotech charger and 2 cables pack. Its working fine, but the cables don't seem to seat very well within the type c fitting in the ac adapter. They wobble. The stock ac adapter and cable are very solid. Wonder if anyone else's like that. The wobbly fit doesn't fill me with complete assurance and confidence over time.

I have this charger. I'm happy with the purchase. Recommended.

Choetech
After doing a few weeks of testing with the latest Choetech Type-C to C *9.9ft(3M) cable and the Type-C 2.0 rapid travel charger, I think it's time I say a few words about them.
From my first impressions I was like wow this cable is super long. *Which could be a good or bad thing. I've been using stock cables for all my devices for a long time, and they have all been 3 to 4ft long. Which in today's world not long enough and not really logical if you need to have it behind a desk or while using it.
But anyways the cable is very nice and it actually snaps into my Nexus 6p. You can literally hang your *device from the cable without it falling to the ground. I tested the cable with CheckR app and it is approved and never had a issue charging my precious Nexus.
*Now for the charger not much I can say about it except that it just works. Charges my device from 5% to 100 in just over a hour. My Nexus says its charging rapidly on the lock screen. I have noticed sometimes when the charger is working really hard it makes a slight buzzing sound. But once the device gets to a certain percentage it stops. Now this isn't all the time just every so often. But it never effected charging. I highly recommend you all purchase these two products. You won't be dissatisfied.
Links:
CHOETECH Hi-speed USB-C to USB-C Cable 10ft(3m) for USB Type-C https://www.amazon.com/dp/B017W2RWAO/ref=cm_sw_r_other_awd_5qXNwb614QDTE
USB Type C Charger, CHOE 5V/3A 15W Rapid Wall Charger with the Latest Charging Tech *https://www.amazon.com/dp/B017I7EX46/ref=cm_sw_r_other_awd_CNXNwbRDTYX41
Sent from my Nexus 6P using Tapatalk

Let this Google employee help you find a USB Type-C cable
I have bought 2 USB-C cables to USB 3-A & one did not click in to Nexus 5x & the other one says Slow charging?

Did you buy these Choetech versions of another brand, what charger brick are you using.
Sent from my Nexus 6P using Tapatalk

The buzzing sound while charging kinda worries me. anyone else? aside from that, and the heat it puts out it seems to work fine.

smirkis said:
The buzzing sound while charging kinda worries me. anyone else? aside from that, and the heat it puts out it seems to work fine.
Click to expand...
Click to collapse
I talked to them last night. They have a new model that fixes that. Give them a email back if you purchased from Amazon. And if you buy a new one today you'll get the latest model from Choetech
Sent from my Nexus 6P using Tapatalk

The buzzing sound might be the result of saturation of the transformer built inside. I didn´t notice any buzzing since I didn´t put my ear next to the charger
A newer revision is always nice to have

Gorgtech said:
The buzzing sound might be the result of saturation of the transformer built inside. I didn´t notice any buzzing since I didn´t put my ear next to the charger
A newer revision is always nice to have
Click to expand...
Click to collapse
It's pretty noticeable when you chilling with no TV on.
Sent from my Nexus 6P using Tapatalk

I checked my unit again and I can confirm a slight buzzing noise. It is barely audible though, you really have to put your ear next to the charger. I think this is something common with most chargers and as long as the device works, I would not care too much about it

[Review] Tronsmart Presto 12000mAh USB-C Fast Charging & QC3.0 Powerbank

Disclaimer: I was sent these items in exchange for an unbiased review.
Tronsmart Presto 12000mAh Powerbank
Unboxing and First look
Overview
I have been searching for a nice powerbank to charge my Nexus 6P since I bought it back in September of last year. Tronsmart finally made what everyone (in my opinion) has been looking for in a battery pack; this battery offers both QC 3.0 and Type-C fast charging due to the way it’s designed. I’ve tried a few different battery/power banks before this one for the Nexus, yet all of them that offer a Type-C port break the USB specification.
Tronsmart claims this powerbank is one of the most efficient on the market giving you the ability to maximize the power it stores to charge your phone. I haven’t tested that claim yet, but I fully intend to do so and publish my results below. I also own a 12000mAh Aukey powerbank, and a 10400mAh Choetech one as well. I do have other batteries, but their capacities aren’t similar enough to compare here.
What’s in the Box
-Tronsmart Presto 12000mAh Powerbank
-Documentation
-USB A-C charging cable with the proper 56k ohm resistor
Build & Design
In the typical Tronsmart style they have opted for a glossy plastic border alongside a matte plastic body. The plastic feels nice, and has a subtle texture on the matte section giving it a more refined feel. I appreciate how Tronsmart carried over their design language across multiple products (chargers, powerbanks etc.) which gives the end user a familiar feel to their products.
On the front of the powerbank you will find two ports; the first is your standard USB-A that offers QC 3.0, while the second only charges via USB-C fast charging. I like how they separated the circuits to offer both standards in one nicely designed battery especially for people like myself that own a Quick-Charge enabled phone (QC 1.0/2.0/3.0).
Along the side you will find a power button that turns on the battery for when you want to charge your phone(s).
Charging breakdown by port
Input (Type-C): DC:5V/3A
Output (Type-C Port): DC 5V 3.0A Max
Output (QC3.0): DC 5V-6.5V/3A 6.5V-9V/2A 9V-12V/1.5A
Summary
This has quickly become my new go to powerbank given the wide range of charging options it offers for both of my phones.
I also really appreciated the compact design, solid construction, and consistent styling offered.
I will follow up this review with a battery test to see how efficient it is while charging my Nexus 6P over USB-C and my S7 Edge via the USB-A QC 3.0 port. I’ll also add a short review of the braided USB A-C cable I was sent tomorrow.
Comparison: Tronsmart Presto vs Choetech, and Aukey Powerbanks
Tronsmart Braided USB A-C Cable
I own a ton (literally/physically) of USB A-C, C-C and MicroUSB cables given the number of phones I have. I first wanted to say how I’m impressed with the quality of this particular cable because it’s built well. I also own the I-Orange USB A-C, and C-C cables, but those are more expensive even though they are also high quality. The Tronsmart one features a nice braided nylon sleeve giving it more durability in the long run couple with nice aluminum housings for each end. The cable offers data transfer at USB 2.0 speeds (480mbs) which is perfect for the Nexus 5X/6P, or any device that doesn’t support USB 3.1 over Type-C. I have no complaints about the cable, and given how it meets the USB spec with the proper 56k ohm-m resistor you shouldn’t run into any issues.

Looks great! The main thing I'd like to know is how fast the 6P charges through the usb-c port in comparison to my oem usb-c cable & brick. So far I haven't seen a power bank that actually charges quickly through the usb-c port and this looks promising!

Is this available to buy yet:?

Sounds great... What's the dimensions and weight? Nm, here it is:
Product Dimensions 7.5 x 3.5 x 1.2 inches
Item Weight 10.7 ounces

you guys sure don't like to use google.
https://www.amazon.com/gp/product/B01GVBFBBO/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=ALTVS0Q5KJ7M3
I just ordered mine, will be arriving tomorrow.

I'm going to post some more updates to the OP this afternoon. It is available for purchase on Amazon, and other places from what I've seen, but XDA doesn't like when you post product links in the OP.

Disappointing that this is bigger than Anker's while having only 60% of the capacity.

Here's something i don't understand. Back in November, when you reviewed the 20100mah ravpower, you said
Pilz said:
Any USB A-C cables are limited to 1.5A by design so it won't rapid charge with a Type A that is inspec.
Click to expand...
Click to collapse
But here we see
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Clearly shows QC3 charging due to the higher current, nearing 3A there. So this included-in-the-box a-c can handle more than 1.5A. Why ?
Does not indicate that 3A is reaching the 6P.
can you post a photo which indicates that close to 3A does reach the 6P.
with earlier banks there was always this doubt whether they were putting out close to 3A or 2.4A.

Went digging around for better photos that showed the specs clear and found one.
Note that it allows to charge devices ie. output using QC3 going up to 12V but will only accept 5v3A on the input. Why ?
No phone is going to require 12V on the input but a charger will certainly benefit from 12V QC3 as you can push over 20W with a suitable charger to charge it instead of 14W. Net result is your wait time to full charge of the power bank reduces by 50%.

Will this show Charging Rapidly when I plug my phone in this? Also, can I use the wall charger and C-C cable my phone came with for charging this power bank? Thanks!

cmarkrin2no said:
Will this show Charging Rapidly when I plug my phone in this? Also, can I use the wall charger and C-C cable my phone came with for charging this power bank? Thanks!
Click to expand...
Click to collapse
I've just got mine from Amazon and can confirm that it displays CHARGING RAPIDLY. This is only displayed by using the C to C cable which is the one that came with the phone. Hope that answers your question.

I just posted a similar review of the product over on the G5 forums:
http://forum.xda-developers.com/lg-g5/accessories/tronsmart-presto-12000mah-qc3-0-usb-c-t3415369
This is more from the QC3.0 side of things as I do not have a Nexus, so it may not be as relevant to those on this thread.
One difference I believe I'm seeing between our reviews is that in charging my battery pack, it never went above 2.4/5V. It was measured using basically the same technique (USB-A multimeter plugged into a QC3 adapter, connected into a USB-A to USB-C cable, into the USB-C port of the battery). Maybe I'll try a different QC3 AC adapter.

I picked up this powerbank a couple days ago and ran a simple test to compare the charging speeds between the tronsmart powerbank and my wall charger. Both times, I ran the phone's battery down until it powered itself off before starting the test. Here are the results
Through Wall Charger (with 3rd party USB-C to C cable)
@ 15 min - 22%
@ 30 min - 42%
@ 1 hr - 80%
@ 1 hr 15 min - 91%
@ 1 hr 35 min - 100%
Through Tronsmart Powerbank (with 3rd party USB-C to C cable)
@ 15 min - 17%
@ 30 min - 38%
@ 1 hr - 76%
@ 1 hr 15 min - 90%
@ 1 hr 40 min - 100%
So far, pretty happy with the charging speed.

One Twelve said:
Here's something i don't understand. Back in November, when you reviewed the 20100mah ravpower, you said
But here we see
Clearly shows QC3 charging due to the higher current, nearing 3A there. So this included-in-the-box a-c can handle more than 1.5A. Why ?
Does not indicate that 3A is reaching the 6P.
can you post a photo which indicates that close to 3A does reach the 6P.
with earlier banks there was always this doubt whether they were putting out close to 3A or 2.4A.
Click to expand...
Click to collapse
The USB-C port is only rated for 5V/3A, while the USB-A port is a QC 3.0 port. This is why it will quick charge my S7 Edge over the USB-A port since its using micro USB. I can post more about it when I get home from work tonight.

Didn't get a chance to post what I wanted last night because I got home late from work. I will try to do it today assuming all goes well. For those of you that are curious I managed 2.1 charges using C-C fast charging out of the battery pack resulting in a ~61% battery pack efficiency

just got this and i was not able to get charging rapidly msg on my nexus 6p when using supplied cable or my own a-c cable i purchased from google.
able to get quickcharging with a-c cable on my gf samsung galaxy s6
have not tried the c-c port charging on nexus 6p. will report back with results.

The USB-A port is a Qualcomm Quick Charge port, not a USB-PD port, so you won't get quick charging on the 6P from it.
You need the C-C cable to get quick charging on the Nexus.

Just ordered mine based on this review

I went back and used a different QC3.0 AC charger to charge this battery. This time, it was a nice Tronsmart branded one. The numbers were far better, ~15Ws, about 2.5-2.6A and 5.7V. So the charger you use to juice up the Presto will make a difference in charging times. This confirms the numbers @Pilz was getting.

I am looking for a fast battery charger for Nexus 6p, reading through this thread am I right in assuming then the only way to get a charge above 1.5ish amps is to use a USB C to C connection for the Nexus 6p when charging.