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.
Related
After a 54W Desktop Charger a few weeks back, this is my second review unit from Tronsmart. It's been 6 days since I'm using this product and I'm definitely inclined towards writing another great review on their product.
Before I start with the review, here's the product listing on Amazon
Like most of my reviews, I'll split this up in following categories:-
1. Packaging & Content
2. Build Quality & Design
3. Functionality
4. Pros & Cons
I'll go through each of them, one at a time.
Packaging & Content
The Tronsmart Rapid Car charger came well packed in a colorful display box with every detail written all over it. Unlike last time, this box isn't one of those recyclable brown boxes but this one do give an impression of a renowned brand too. And there's seal on the box (It's kind of important to me).
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Following are the in-box items you get:-
- Tronsmart Rapid Charger ( 2 x USB Output )
- 2 x USB Cables (premium quality)
- User Manual
- VoltIQ Info Card
Even if it makes sense to give 2 USB cables since the Rapid Charger has 2 USB Outputs, honestly, I didn't expect that. And both the cables are premium built and long enough to use confortably even while charging (unless you have cigerette lighter port located somewhere far away from the dashboard). Infact, as per Tronsmart, the USB cables are custom made standardized 20AWG cables (thick cable for less voltage drop and strength) specifically designed for Quick Charge 2.0 Ports.
Moving on to the next category...
Build Quality & Design
I'm very picky when it comes to design & build and let me say this outloud, so far, Tronsmart hasn't dissapointed me at all. The rapid charger's quality feels top notch and I couldn't find any flaw in the finishing of the product either. With it's matte black surface, green colored USB Ports and engraved brand name, the charger looks absolutely gorgious. Look at the images and decide for yourselves:-
Overall, this is a beautiful charger which is small (for a 2-Port charger), very light and yet feels very sturdy in hand.
Functionality
Inspite of it's small size, this rapid charger packs 2 USB Outputs with both having Qualcomm Quick Charge 2.0 Certification. In other words, it's a tiny powerhouse which can charge 2 of your power hungry USB devices rapidly and simultanously. The specification on Amazon listing claims that this charger can charge 2 QC2 devices simultanously at 9V/2A (max) and for non QC devices 5V/2.4A (max). With that said, one must know that a phone incapable of handling such high power (mostly old phones) might be adversely affected due to high current/voltage flow. And that's where VoltIQ comes into play.
The VoltIQ
The voltIQ is a smart circuit that controls the flow of current and voltage by identifying the connected device and it's maximum supported power input. For example, a 3 years old Nexus 4 doesn't support rapid charging and it could draw only upto 5V/1.25A (avg) max power. Even, the genuine adapter that came with it had rated output of 5V/1.2A. So what happens if I connect it to Tronsmart Rapid Car Charger ? No, it certainly doesn't damage the battery of nexus 4 thanks to VoltIQ which detects that the device can draw only upto 5V/1.2A and delivers the same power for efficient charging. Similarly, when a rapid charging capable device is connected, the charger delivers an optimum fast charging output to charge that device at a much faster rate.
To validate the claims made by VoltIQ, I tested the review unit with an iPhone 6 Plus, S6 Edge+, ZenWatch and Bluebux X. Following are the results of the OEM charger output and Tronsmart Rapid Car Charger:-
Although I'm more than satisfied with the performance of this tiny charger, there's one thing that I'm not fully convinced about. The Amazon description of the product says this adapter would deliver upto 5V/2.4A for Apple products, however, my iPhone could only draw 5.12V/1.15A which is significantly lesser than the power advertised. But then again, the description could have been for an iPad since I know the iPad comes with a higher power rated adapter compared to an iPhone. I'm just going to ignore this because my iPhone is charging faster than it's original adapter(Yes, iPhone 6 Plus supports fast charging via iPad's adapter).
Update [9/19/2015]: Just heard back from Tronsmart. Here's what they said on charging Apple products:-
Because VoltIQ technology will automatically detect the demanding current for the devices needed. For the iPhone 6 with empty battery capacity, Tronsmart charger will offer the largest currect 1.5A, for iPhone 6 Plus, the largest current offered is 1.8A, and for iPad, the largest current is 2.4A. So in the description it says this adapter would deliver upto 5V/2.4A for Apple products.
When I was charging the iPhone 6 Plus, the current drawn initially was 1.25A (at 90% battery charged) and finally settled for 1.15A (at 93% charged) few minutes later. So the explanation do make sense. As I suspected earlier, only the iPad utilizes the full potential of this charger but either way, the iPhone 6 Plus charges way faster than it's original adapter and it's battery is definitely not affected since it supports fast charging (high current input) - source
Overall, if you're looking for an affordable car charger, this is the way to go. And if 2 ports aren't enough to juice up all of your devices while you travel, you can look into several other Tronsmart Accessories which offer upto 4 USB Outputs on a Car Charger.
Still looking for a external battery that either has QC 2.0 on more than one port, or on one port with all others charging at up to at least 2.1A
mohinipollob said:
Still looking for a external battery that either has QC 2.0 on more than one port, or on one port with all others charging at up to at least 2.1A
Click to expand...
Click to collapse
Here's one if that's what you're looking for : Aukey Quick Charge 2.0 10400mAh Portable External Battery
mohinipollob said:
Still looking for a external battery that either has QC 2.0 on more than one port, or on one port with all others charging at up to at least 2.1A
Click to expand...
Click to collapse
I doubt you could find such a external battery, 1 QC 2.0 port(18w) + 2.1A port(11) = 29W output, it would generate too much heat with a case on.
feihu989 said:
I doubt you could find such a external battery, 1 QC 2.0 port(18w) + 2.1A port(11) = 29W output, it would generate too much heat with a case on.
Click to expand...
Click to collapse
Yeah, Right! Pardon me, I didn't read the complete comment. Just posted a url for QC 2.0 powerbank!
Sent from my SAMSUNG-SM-G928A using XDA Free mobile app
Ordered me one of these and then I came across this review... Nice.
Got this in tonight, thought I'd share some pics. All of the paperwork that came with it is pretty much either how to return stuff you don't like or how to post a review on Amazon lol. The pictures attached show you all the information on the actual charger. I obviously don't have anything that can use the Type C for it yet but I will charge my lg g3 with a regular micro USB tomorrow. If anyone knows of a way for me to do some testing and tells me how I'm more than willing to do it.
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I got the StillGut, look like the exact thing. I'll take some picture.
Download Battery Monitor Widget app. That'll show you roughly what the charge rate is.
Sent from my A0001 using Tapatalk
]
Hayaku said:
Download Battery Monitor Widget app. That'll show you roughly what the charge rate is.
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
I'll get it now.
Sent from my VS985 4G using Tapatalk
Yoobao looks the same as the Visnic and Stilgut
http://www.amazon.com/gp/product/B0...car charger&qid=1444181035&ref_=sr_1_6&sr=8-6
Hayaku said:
Download Battery Monitor Widget app. That'll show you roughly what the charge rate is.
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
I see several in the Play Store, which one? I downloaded and tried one out but they said that my wireless charging is -7000 percent.
RED ZMAN said:
I see several in the Play Store, which one? I downloaded and tried one out but they said that my wireless charging is -7000 percent.
Click to expand...
Click to collapse
https://play.google.com/store/apps/details?id=ccc71.bmw
Or
https://play.google.com/store/apps/details?id=com.gsamlabs.bbm
They might not be calibrated for your G4(?). If it shows some whacky +/- 4000mah, then it's obviously wrong.
I got this too. I would try it with my Pixel, but I'm not sure there is any way to measure the charging current. I also need to wait for my type-c to type-c cables to show up from China...
It's says 3A on the charger by the ports, but does that mean its 3A divided among both usb points or 3A in each point?
Sent from my Nexus 5
DrunkFuX666 said:
It's says 3A on the charger by the ports, but does that mean its 3A divided among both usb points or 3A in each point?
Sent from my Nexus 5
Click to expand...
Click to collapse
As per one of the description on Amazon:
2x 1.5A if both ports are in use
or 1x 3A if single port (which is what RED ZMAN is hopefully able to test for us)
AFAIK you can't deliver 5V @ 3A over a USB-A connector... that is wholly unique to USB Type-C. The best you can do with USB Power Delivery spec is 5V @ 2A. So IF this charger can really deliver 15W power, it will only be via the USB-C port. I plan on testing with my Chromebook Pixel using a USB-A to USB-C and a USB-C to USB-C. I don't think I can measure actual wattage, but I can compare "time to full" calculations using each port.
Hayaku said:
As per one of the description on Amazon:
2x 1.5A if both ports are in use
or 1x 3A if single port (which is what RED ZMAN is hopefully able to test for us)
Click to expand...
Click to collapse
I messed around with it today along with several different apps to try to measure the actual charge rate but wasn't successful. The LG g3 seems to have issues with most of these apps and the ones that showed readings that looked meaningful we're showing things like 520 mAh. This was with a decent quality cable that I have grown to trust quite a bit.
I have some types C cables coming but without anything to plug it into I really can't do much more measuring. I will say this does not feel like a cheap charger and I'm kind of impressed with how good it looks in the car. It also did seem to be charging my phone very well, and was a consistent 50 to 70 mah higher than the other charger I was using which was the accessory USB A port for a Tylt Qi wireless charger dock/mount.
Hopefully somebody with a USB C device they can measure with is able to get us good readings.
Skitals said:
AFAIK you can't deliver 5V @ 3A over a USB-A connector... that is wholly unique to USB Type-C. The best you can do with USB Power Delivery spec is 5V @ 2A. So IF this charger can really deliver 15W power, it will only be via the USB-C port. I plan on testing with my Chromebook Pixel using a USB-A to USB-C and a USB-C to USB-C. I don't think I can measure actual wattage, but I can compare "time to full" calculations using each port.
Click to expand...
Click to collapse
I'm pretty sure you're right about the limits of the USB-A. I think it's limited to 2.1A, so yeah, you'll need to have a type-c to type-c cable with a 5v/3a charger to get this to work. Ah well, the micro-usb run was nice while it lasted.
Question for the OP also, how well does the charger fit in the outlet? I read a few reviews on Amazon that say it's pretty loose in some and doesn't stay seated.
akwally1 said:
I'm pretty sure you're right about the limits of the USB-A. I think it's limited to 2.1A, so yeah, you'll need to have a type-c to type-c cable with a 5v/3a charger to get this to work. Ah well, the micro-usb run was nice while it lasted.
Question for the OP also, how well does the charger fit in the outlet? I read a few reviews on Amazon that say it's pretty loose in some and doesn't stay seated.
Click to expand...
Click to collapse
We had no problems at all with it staying in place. I use a lot of retractable cables so you're pulling on them to let them retract and it never moved unless they directly pulled on the charger. Tight fit.
Sent from my VS985 4G using Tapatalk
interested in updates. although i'd like to see a charger that doesn't split the amperage between ports. i have a BT receiver and a charging cable in the device that i have now, so if there's one that can provide power to both A and C without splitting, that would be ideal.
who know, it's 3A at 5V, no one will know until we have the 6p
Skitals said:
AFAIK you can't deliver 5V @ 3A over a USB-A connector... that is wholly unique to USB Type-C. The best you can do with USB Power Delivery spec is 5V @ 2A. So IF this charger can really deliver 15W power, it will only be via the USB-C port. I plan on testing with my Chromebook Pixel using a USB-A to USB-C and a USB-C to USB-C. I don't think I can measure actual wattage, but I can compare "time to full" calculations using each port.
Click to expand...
Click to collapse
Why does the google usb a to usb c cable say it can do 3A 5V?
Chilidog said:
Why does the google usb a to usb c cable say it can do 3A 5V?
Click to expand...
Click to collapse
Hmm, you got me there. I got in my Cable Matters USB-C to USB-C cable, to go along with my USB-A to USB-C cable. Sometime soon I will try both with the Vinsic charger and my Chromebook Pixel and see if they both charge at the same speed. I'm still not sure if Chrome OS has a "time to full" charging indicator or anything, though. With the Pixels 60W Type-C charger, the thing charges so dang fast it's almost always fully charged
You can use an app called GSam battery to measure the current, very interested to know if the A port is a proper 3A one
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
Click to expand...
Click to collapse
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.
Click to expand...
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.
Click to expand...
Click to collapse
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.
Click to expand...
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.
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
Aukey reached out to me to test some of their new OmniPower charging products so of course I obliged. They sent me their 63W dual USB C PD wall charger, 27W single port PD wall charger, 18W flush-fit PD car charger, 4-in-1 USB C hub with 100W PD passthrough and wireless charging, and finally their 8000mAh portable battery with PD and wireless charging. They also sent braided USB C to C and a C to Lightning cables.
I actually already owned the car charger, as my previous one had died and I was looking for the smallest form factor possible. I've had it a few months now and it reliably fast charged my P3XL, and I've had no issues with the 4XL either. It is incredibly compact, an I personally like that it doesn't have an LED. It only offers 18W, which is plenty for a phone, but if you're looking to charge a laptop off of it it won't charge as fast.
The 63W dual USB C charger was the device I was most excited about, as I have many USB C devices at this point so consolidating chargers for traveling is appreciated. It is not small by any means, but for a 63W dual charger it is very compact. The folding plug helps, but it is mostly due to the use of GaN, which I am very excited to see being used a bit more. When charging two devices it uses what Aukey calls Dynamic Detect, providing the right amount of power to each connected device. It can achieve max output of 45W on one port and 18W on the second; if charging just one device it will max out at 60W on the bottom port. That last part is important to remember, because there is no marking on the charger that indicates the bottom port is required for higher powered devices. When I first tried it I had the laptop plugged into the top port and got a low power charger warning. Switching the ports resolved this, and there was no power dip on either the phone or laptop when a second device was plugged in. That said, my Chromebook Plus doesn't pull more than 45W so if you're using something like a MacBook Pro it'll max out at 45W while another device is plugged in.
The single port 27W PD charger also uses GaN, and Aukey claims that it is the smallest of it's kind. It is simply a tiny cube, no bigger an an original iPhone charging brick, and the folding plug makes it even more compact to pack. Again, my P4XL charged with no problem. Even though my Chromebook OEM charger is 45W, this 27W charger did not give me a low power charging warning.
The 8000mAh battery pack is interesting in that it offers Qi wireless charging, though only at 5W. Given the slow charging combined with the inefficient nature of both wireless charging and battery packs this is more of a novelty to me, but nonetheless it does work. You have to double press the power button to activate it, so it is not constantly sending power to the coils. As for standard charging it has 2 USB A ports; one a QC 3 and the other a 5V/2.4A. It touts a low current mode to charge small devices like trackers or headphones that don't require as much juice as a smartphone. The USB C port puts out a max of 18W via PD. The battery is relatively slim, and about the same footprint as my 4XL. It's thin enough that you could conceivably have both the bank and phone in your pocket and use wireless charging, but unless you find yourself without a cable I wouldn't see why you'd want to.
The 4-in-1 USB C hub, which is about the same footprint as a generic wireless charging cube, though much thicker. It is well constructed, with a slightly rounded but grippy rubber top and a metal base. The heft of the metal as well as a rubber foot makes sure it doesn't slide around. There are four ports: HDMI with 4K output, USB C with 100W PD passthrough and 2 USB 3.0 A ports which can transfer at 5Gbps. To enable wireless charging you need to plug the hub into both a USB C charger and the C port on your laptop, but with the 100W pass through charging this will allow you to charge both your laptop and phone at the same time. The USB C passthrough charging speed is obviously dependent on the charger it is connected to. It's a very handy device given that more and more laptops are losing traditional ports like USB A and HDMI.
Lastly are the charging cables. The Lightning cable is 1.2m/3.9ft and the USB C is 2m/6.6ft. Aukey touts the graphene skin as allowing the cables to be thinner and more flexible, but still deliver fast data and charging speeds and the USB C is rated for PD up to 60W. They didn't give exact specs on the Lightning cable, but the marketing materials mention that it pairs well with 18w PD chargers so I'm assuming it is more limited in it's capabilities. Both cables are very high quality and I will definitely be using the USB C one on a frequent basis.
I'm a bit of a geek with these things so I'm always looking to try out the latest and greatest. I've got a drawer full of PD chargers and battery packs that go unused for one reason or another, but these will definitely be added to my frequently used items. The 63W charger is great because at this point most of the devices in our house are USB C, and the 27W is so small it will easily get thrown in my bag. I'm excited about GaN and I really hope to see small chargers with lots of ports. I've been using Aukey products for a while now, and this new lineup is definitely something I'd recommend. They are offering XDA members 50% off any of these OmniPower products on their website through the end of the month, and it looks like the discount applies to some of the items that are already discounted, so for example the battery pack is only $15.
https://shop.aukey.com/collections/omnipower
Code XDAONLY
pics. the power bank is next to a pixel 3 and the chargers are lined up next to the Pixel OEM charger, for reference
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kellybrf said:
pics. the power bank is next to a pixel 3 and the chargers are lined up next to the Pixel OEM charger, for reference
Click to expand...
Click to collapse
I bought the Focus Duo a few weeks ago when they sent me an email and I've been using it since then. Works perfectly and mine has a laptop logo (where yours says PD) in between the ports to let you know the bottom one is the 60w port.
Maybe you got an early revision of that one.
ilal2ielli said:
I bought the Focus Duo a few weeks ago when they sent me an email and I've been using it since then. Works perfectly and mine has a laptop logo (where yours says PD) in between the ports to let you know the bottom one is the 60w port.
Maybe you got an early revision of that one.
Click to expand...
Click to collapse
interesting, that would make a lot more sense haha!
Thanks for the in-depth review. I am looking for an extra charger, but don't want to spend a lot if I can avoid it. Compatibility is my question though. In order to enjoy the "Rapid Charging", do I need to look at anything other than output? Any help is appreciated! Thanks!!
kellybrf said:
Aukey reached out to me to test some of their new OmniPower charging products so of course I obliged. They sent me their 63W dual USB C PD wall charger, 27W single port PD wall charger, 18W flush-fit PD car charger, 4-in-1 USB C hub with 100W PD passthrough and wireless charging, and finally their 8000mAh portable battery with PD and wireless charging. They also sent braided USB C to C and a C to Lightning cables.
I actually already owned the car charger, as my previous one had died and I was looking for the smallest form factor possible. I've had it a few months now and it reliably fast charged my P3XL, and I've had no issues with the 4XL either. It is incredibly compact, an I personally like that it doesn't have an LED. It only offers 18W, which is plenty for a phone, but if you're looking to charge a laptop off of it it won't charge as fast.
The 63W dual USB C charger was the device I was most excited about, as I have many USB C devices at this point so consolidating chargers for traveling is appreciated. It is not small by any means, but for a 63W dual charger it is very compact. The folding plug helps, but it is mostly due to the use of GaN, which I am very excited to see being used a bit more. When charging two devices it uses what Aukey calls Dynamic Detect, providing the right amount of power to each connected device. It can achieve max output of 45W on one port and 18W on the second; if charging just one device it will max out at 60W on the bottom port. That last part is important to remember, because there is no marking on the charger that indicates the bottom port is required for higher powered devices. When I first tried it I had the laptop plugged into the top port and got a low power charger warning. Switching the ports resolved this, and there was no power dip on either the phone or laptop when a second device was plugged in. That said, my Chromebook Plus doesn't pull more than 45W so if you're using something like a MacBook Pro it'll max out at 45W while another device is plugged in.
The single port 27W PD charger also uses GaN, and Aukey claims that it is the smallest of it's kind. It is simply a tiny cube, no bigger an an original iPhone charging brick, and the folding plug makes it even more compact to pack. Again, my P4XL charged with no problem. Even though my Chromebook OEM charger is 45W, this 27W charger did not give me a low power charging warning.
The 8000mAh battery pack is interesting in that it offers Qi wireless charging, though only at 5W. Given the slow charging combined with the inefficient nature of both wireless charging and battery packs this is more of a novelty to me, but nonetheless it does work. You have to double press the power button to activate it, so it is not constantly sending power to the coils. As for standard charging it has 2 USB A ports; one a QC 3 and the other a 5V/2.4A. It touts a low current mode to charge small devices like trackers or headphones that don't require as much juice as a smartphone. The USB C port puts out a max of 18W via PD. The battery is relatively slim, and about the same footprint as my 4XL. It's thin enough that you could conceivably have both the bank and phone in your pocket and use wireless charging, but unless you find yourself without a cable I wouldn't see why you'd want to.
The 4-in-1 USB C hub, which is about the same footprint as a generic wireless charging cube, though much thicker. It is well constructed, with a slightly rounded but grippy rubber top and a metal base. The heft of the metal as well as a rubber foot makes sure it doesn't slide around. There are four ports: HDMI with 4K output, USB C with 100W PD passthrough and 2 USB 3.0 A ports which can transfer at 5Gbps. To enable wireless charging you need to plug the hub into both a USB C charger and the C port on your laptop, but with the 100W pass through charging this will allow you to charge both your laptop and phone at the same time. The USB C passthrough charging speed is obviously dependent on the charger it is connected to. It's a very handy device given that more and more laptops are losing traditional ports like USB A and HDMI.
Lastly are the charging cables. The Lightning cable is 1.2m/3.9ft and the USB C is 2m/6.6ft. Aukey touts the graphene skin as allowing the cables to be thinner and more flexible, but still deliver fast data and charging speeds and the USB C is rated for PD up to 60W. They didn't give exact specs on the Lightning cable, but the marketing materials mention that it pairs well with 18w PD chargers so I'm assuming it is more limited in it's capabilities. Both cables are very high quality and I will definitely be using the USB C one on a frequent basis.
I'm a bit of a geek with these things so I'm always looking to try out the latest and greatest. I've got a drawer full of PD chargers and battery packs that go unused for one reason or another, but these will definitely be added to my frequently used items. The 63W charger is great because at this point most of the devices in our house are USB C, and the 27W is so small it will easily get thrown in my bag. I'm excited about GaN and I really hope to see small chargers with lots of ports. I've been using Aukey products for a while now, and this new lineup is definitely something I'd recommend. They are offering XDA members 50% off any of these OmniPower products on their website through the end of the month, and it looks like the discount applies to some of the items that are already discounted, so for example the battery pack is only $15.
https://shop.aukey.com/collections/omnipower
Code XDAONLY
Click to expand...
Click to collapse
ShermCraig said:
Thanks for the in-depth review. I am looking for an extra charger, but don't want to spend a lot if I can avoid it. Compatibility is my question though. In order to enjoy the "Rapid Charging", do I need to look at anything other than output? Any help is appreciated! Thanks!!
Click to expand...
Click to collapse
I don't understand your question, but you'll need. power delivery charger to get fast charging
Do any usb c cables work for this? As long as its c to c of course
Good Morning
needed fast charging charger with EU plug and respective quick charging cable, what do you recommend ???
the cable can be USB / A - usb-c.
thanks
Good Morning
charger of this kind for pixel 4 xl fast charging, someone recommends one that is good.??
thanks