Develop Bugs

Why is my 5x "Charging slowly"?

Just got my 5x today, and it does "rapid charging" when I connect with the charger in the box, but when I connect using other USB cables/plugs (one supports QC 2.0, the other is a regular charger but supports 2.1A charging), I get a message that the device is "Charging slowly."
Are there other certain specs that a cable or charger has to have to take advantage of rapid charging?

Fast charging on USB-C is apparently very picky when it comes to cables. I havent't tried charging from the USB-A cables that I bought, but the reviews for one that I was considering said that the cable limited the charging capability to 500mA. I know little about qcomm's Quick Charging but I do know that it requires feedback from an enabled device before it will allow full power. I wouldn't be surprised if the lack of that feedback from the N5X was limiting current from the charger, but it definitely looks like a quality cable is the first step to success. Notice how thick the factory LG cable is...
Most cables limit current by a significant amount. Even factory ones. That's why the OnePlus One charger was so popular. The wall dongle was nothing special (2.0A) but the cable was thick enough to actually let it output that current. The only difference now is that our phone will actually tell us if it's hooked up to a crappy charger/cable.

Thanks for the reply, I'll have to do some hunting on Amazon for another cable and see what happens.
Appreciate it if anyone else can chime in too.

the Nexus 5X does not support Qualcomm Quick Charge, at all.

Thanks, I know QC is not supported, I was just offering up that I tried one, and that I tried multiple charges that support 2.1A charging.

Interestingly enough, if I use either of the QC certified chargers that I got along with my S6 (which only output 2A) I get rapid charging. Using an Anker QC charger (also 2A) I don't, and using a different charger (can't remember the brand at the moment, but also 2A, but not QC), I also get slow charging.
Hmm...

Google Pixel/Pixel XL Use USB Power Delivery up to 18W, do not support Qualcomm QC

Benson Leung said Google Pixel/Pixel XL Use USB Power Delivery up to 18W, do not support Qualcomm QC, I wonder what kind of adapter the two phones use. I used a 5v/3a USB C charger and USB C - C cable with my Nexus 6P. Does this adapter and cable work on Google Pixel/Pixel XL?

Will it work? Sure.
Is it the optimal option? No.

Thank you @testinguser. Can't wait to get the phone.

testinguser said:
Will it work? Sure.
Is it the optimal option? No.
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Click to collapse
Umm... USB Type C will charge at 3A, no?
Shouldn't it be 5V/3A for the Pixel / Pixel XL also?

xz

SNH48 said:
Benson Leung said Google Pixel/Pixel XL Use USB Power Delivery up to 18W, do not support Qualcomm QC, I wonder what kind of adapter the two phones use. I used a 5v/3a USB C charger and USB C - C cable with my Nexus 6P. Does this adapter and cable work on Google Pixel/Pixel XL?
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Click to collapse
Absolutely, USB C is designed to negotiate with the charger how much juice is sent. the pixel works at 5V 3A (15W) and up to 9V 2A (18W), Basically if the plug fits it'll get some sort of charge. There are loads of USB C chargers with PD, the spec goes up to 100W and any charger will provide any device with the maximum it or the device can handle (So a 100W charger will give 18W to the pixel and the Pixels 18W charger will give 18W to a laptop for example)

If you have a true USB-C 5V/3A charger now, it will work fine, but as stated it is not the BEST option. 5V/3A = 15W.
If you buy a USB-PD (Power Delivery) type C charger, it has the capability to charge the Pixel at 9V/2A = 18W, so a 20% faster charge... in a perfect world, instead of 0-50% power in 30 minutes, you'd get 0-50% in 24 minutes. BUT, we don't know how long the phone will charge at 18W. Hopefully to 50%, but it has to cut down current eventually just like all QC chargers, or else it'd damage the battery.
The charger included in the box is USB-PD compliant.

Nitemare3219 said:
If you have a true USB-C 5V/3A charger now, it will work fine, but as stated it is not the BEST option. 5V/3A = 15W.
If you buy a USB-PD (Power Delivery) type C charger, it has the capability to charge the Pixel at 9V/2A = 18W, so a 20% faster charge... in a perfect world, instead of 0-50% power in 30 minutes, you'd get 0-50% in 24 minutes. BUT, we don't know how long the phone will charge at 18W. Hopefully to 50%, but it has to cut down current eventually just like all QC chargers, or else it'd damage the battery.
The charger included in the box is USB-PD compliant.
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Click to collapse
Great info. Now I wonder if the Tronsmart W2PTE will charge at 9V/2A...
http://www.tronsmart.com/tronsmart-w2pte-type-c-quick-charger-3.0-dual-ports-rapid-wall-charger
USB C port output:3.6V-6.5V/3.0A,6.5V-9V/2.0A,9V-12V/1.5A(MAX)
USB A port outpout:5V/2.4A(MAX)
Technically it has the ability to, but I wonder if it can.

bigblueshock said:
Great info. Now I wonder if the Tronsmart W2PTE will charge at 9V/2A...
http://www.tronsmart.com/tronsmart-w2pte-type-c-quick-charger-3.0-dual-ports-rapid-wall-charger
USB C port output:3.6V-6.5V/3.0A,6.5V-9V/2.0A,9V-12V/1.5A(MAX)
USB A port outpout:5V/2.4A(MAX)
Technically it has the ability to, but I wonder if it can.
Click to expand...
Click to collapse
My guess is no because that is relying on a QuickCharge handshake to occur between the device and charger. Pixels will use USB Power Delivery which is an entirely different specification. It'd be great if it does, but I highly doubt it.

It seems even the ones on Amazon that are PD units all are either 15w (5x3) or have the 9x2 spec but don't actually show it as addressable in handshake.
I just want to give someone my money and I am getting upset that I don't have anyone to give it to...

@bigblueshock It seems Tronsmart W2PTE not a 9v/2a PD charger, I saw Choetech has a 29w USB C PD charger
https://www.amazon.com/Charger-CHOETECH-Power-Delivery-MacBook/dp/B01HZ61WWQ/ref=sr_1_1?ie=UTF8&qid=1475906398&sr=8-1&keywords=choetech+29W+PD+charger
Specification:
Input: 100V-240V AC 50/60Hz 0.7A
Output: 5V3A/9V2A/14.5V2A
I may try this one

Great Phone, I am thinking to buy it.

uhh, QC3 supports both 5v3a and 9v2a. I use my QC3 charger with my Pixel C and it rapid charges.
The same will most likely be true for the pixel phones

I think it still doesn't work because the difference is in the protocol for handshake, not a limitation in the ranges of current.
Sent from my SM-N930V using XDA-Developers mobile app

Wouldn't it be nice if the phone could say what it was receiving and how it had negotiated? I've accumulated quite a few mains chargers, power banks and cigarette lighter adapters.
A QC2.0 PSU makes my Pixel XL say charging rapidly, but it doesn't say how rapid. Another mains charger said charging slowly, which was odd (you'd expect that from an unpowered USB hub) and others just say Charging.
How are you supposed to know what's what? The supplied PSU says Charging Rapidly, but clearly it's more rapid.
Even just putting it as an option in the developer menu would be good enough. It would then enable me to check all my various adapters and establish what does what.
Wouldn't it have been nice to just have one standard?!

jonmorris said:
Wouldn't it be nice if the phone could say what it was receiving and how it had negotiated? I've accumulated quite a few mains chargers, power banks and cigarette lighter adapters.
A QC2.0 PSU makes my Pixel XL say charging rapidly, but it doesn't say how rapid. Another mains charger said charging slowly, which was odd (you'd expect that from an unpowered USB hub) and others just say Charging.
How are you supposed to know what's what? The supplied PSU says Charging Rapidly, but clearly it's more rapid.
Even just putting it as an option in the developer menu would be good enough. It would then enable me to check all my various adapters and establish what does what.
Wouldn't it have been nice to just have one standard?!
Click to expand...
Click to collapse
There are special USB adapters that you plug between phone and charger that will tell you what it's using and what the voltage and amps are.

I'm seeing unexplainable results, like faster charging from my old Motorola Nexus 6 Turbo Charger than with the included Pixel charger....
Sent from my Pixel XL using Tapatalk

alexjzim said:
uhh, QC3 supports both 5v3a and 9v2a. I use my QC3 charger with my Pixel C and it rapid charges.
The same will most likely be true for the pixel phones
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I can second this. Plugging it in to a QC3.0 type C charger (like the HTC 10 has) displays a "charging rapidly" notifier on the lockscreen.

robstunner said:
I can second this. Plugging it in to a QC3.0 type C charger (like the HTC 10 has) displays a "charging rapidly" notifier on the lockscreen.
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Click to collapse
But that doesn't actually MEAN anything. I had a bad car charger that would overheat easily over time. My Nexus 6P would say "charging rapidly" and Ampere would show 100mAh, charge completion time was over 3 hours, etc.
Google designed the phone for USB-PD, nothing else. QC 3.0 does work with this phone. Unless someone uses a USB power meter and posts solid numbers like mentioned in a previous post, people need to stop posting this ****.

Nitemare3219 said:
But that doesn't actually MEAN anything. I had a bad car charger that would overheat easily over time. My Nexus 6P would say "charging rapidly" and Ampere would show 100mAh, charge completion time was over 3 hours, etc.
Google designed the phone for USB-PD, nothing else. QC 3.0 does work with this phone. Unless someone uses a USB power meter and posts solid numbers like mentioned in a previous post, people need to stop posting this ****.
Click to expand...
Click to collapse
I'll try it tonight with ampere. I remember seeing 1100mah, which isn't much but I'll report back.
Sent from my Pixel XL using Tapatalk

G5 charging slow on 99% of cables

Hey!
I noticed recently that my G5 charges quite slow. So I tested all of my powerbanks, cables, and wall chargers, in various combinations. I had 4 different powerbanks, 3 wall chargers, and 4 cables.
I used a USB ammeter to measure the power draw going through the USB cable.
On the motorola charger and cable that came with the phone, it charges at 1.8a. I then charged my phone from each powerbank and wall charger, using each cable in turn. The average charge speed for my phone was about 0.5a. Out of 28 combinations, only 2 yielded a draw over 1a.
I have created a spreadsheet detailing the charge speeds of each combination, but unfortunately cannot post it yet (10 post permissions).
I then charged my USB powerbanks from the same wall chargers, using the same cables. One powerbank charged at over 1a with every combination, and reached over 2a on numerous combinations. This proves that the cables and wall chargers are not at fault, it is a phone issue.
Why? Has motorola put something in their chargers that 'talks' to the phone, and allows for faster charge speeds? 0.5a is awful!
Secondly, does anyone know of cables that I can buy, which will support fast charging for the motorola? I have looked at genuine motorola cables, but there is no way to tell one from the other.
Thanks!
Paul
P.s. charge speeds were the same, whether the phone was switched on or off.

Welcome @agour
I've come up to a similar conclusion with a lot less data (thus I didn't share them).
I caught power consumption at the wall outlet when charging my device with two chargers: Motorola stock charger and a Samsung Adaptive Fast Charger.
The Samsung has the following specs: 5V 2A or 9V 1.67A with fastcharging capable device.
Using Samsung Adaptive fast charger and Samsung 1.5m cable : 6W, so the device charges at something like 5V 1.2A...
Using Samsung Adaptive fast charger and the cable provided with my XT1676 : 11.3W (which is coherent with the max 9V 1.6A, and would mean the charger provides 2.2A if at 5V which more than the specs.)
Using stock charger and stock supplied cable : 11.3W ==> fast charge for similar reasons as above
Using stock charger and Samsung 1.5m cable : around 6W ==> low power charge
I'd need a USB multimeter to confirm those data. (mostly due to the variable voltage that can provide fast charge adatpers)

matmutant said:
Welcome @agour
I've come up to a similar conclusion with a lot less data (thus I didn't share them).
I caught power consumption at the wall outlet when charging my device with two chargers: Motorola stock charger and a Samsung Adaptive Fast Charger.
The Samsung has the following specs: 5V 2A or 9V 1.67A with fastcharging capable device.
Using Samsung Adaptive fast charger and Samsung 1.5m cable : 6W, so the device charges at something like 5V 1.2A...
Using Samsung Adaptive fast charger and the cable provided with my XT1676 : 11.3W (which is coherent with the max 9V 1.6A, and would mean the charger provides 2.2A if at 5V which more than the specs.)
Using stock charger and stock supplied cable : 11.3W ==> fast charge for similar reasons as above
Using stock charger and Samsung 1.5m cable : around 6W ==> low power charge
I'd need a USB multimeter to confirm those data. (mostly due to the variable voltage that can provide fast charge adatpers)
Click to expand...
Click to collapse
Interesting! It's suprising how much difference the combinations can make.
I don't think I have experienced this on a phone before, however I have never felt the need to test it...
I tested the original cable that came with the phone, and an off the shelf 'genuine motorola cable'. The stock cable is still the fastest, however the secondary cable still worked very well.
Interestingly, one of my powerbanks will charge at 2.2a from pretty much EVERY powersource and cable combination. This is with 7 cables tested, and 3 USB wall adapters.
Shame that motorola doesn't allow their phones to draw maximum power from hardware that can provide it..

agour said:
Interesting! It's suprising how much difference the combinations can make.
I don't think I have experienced this on a phone before, however I have never felt the need to test it...
I tested the original cable that came with the phone, and an off the shelf 'genuine motorola cable'. The stock cable is still the fastest, however the secondary cable still worked very well.
Interestingly, one of my powerbanks will charge at 2.2a from pretty much EVERY powersource and cable combination. This is with 7 cables tested, and 3 USB wall adapters.
Shame that motorola doesn't allow their phones to draw maximum power from hardware that can provide it..
Click to expand...
Click to collapse
If I have some time, I may test internal impedance of the cables, it is possible that the device somehow probes the cable (or the cable + charger) and then decides if it can or not draw that much power without overheating/melting the cable; and then it will negotiate the quickCharge with the charger.
there has been a discussion about quick charge on this thread a while ago (before I got this devices : https://forum.xda-developers.com/g5/help/quick-charge-3-0-support-t3632457)
Lenovo adds the following that I have not tested:
Lenovo said:
If your device is below 78%, but it does not begin Turbo charging when you plug it into the Turbo Charger, try uplugging and plugging back in using one fluid motion.
Click to expand...
Click to collapse
[Source]

It is quite obvious that especially cheap cables will charge phones much slower as the resistance is too high, even if the phone does not perform any checks. Those cables are basically too thin. Resistance limits the current (amps) that can flow. Newer phones most likely just look at the charge current during the first x seconds (or less) and then decide wether to enable fast charging or not to keep the cable from heating up. A wire with high resistance is basically a heater. So it's a necessary safety feature (from the companies POV).
Regarding the power bank, it may be possible that this particular design provides a voltage slightly higher than the nominal 5 volts (still fine for most devices), which helps overcome the resistance. That is also the reason why the Samsung fast charger provides 9V: You don't need a cable as thick as with 5V.
Keep in mind that the USB specifications only recently got updated for such high charging currents, so it is advisable to use only the cable that comes with the phone as USB cables in general don't need to provide such high currents by spec!

71n4 said:
It is quite obvious that especially cheap cables will charge phones much slower as the resistance is too high, even if the phone does not perform any checks. Those cables are basically too thin.
Resistance limits the current (amps) that can flow. Newer phones most likely just look at the charge current during the first x seconds (or less) and then decide wether to enable fast charging or not to keep the cable from heating up. A wire with high resistance is basically a heater. So it's a necessary safety feature (from the companies POV).
Regarding the power bank, it may be possible that this particular design provides a voltage slightly higher than the nominal 5 volts (still fine for most devices), which helps overcome the resistance. That is also the reason why the Samsung fast charger provides 9V: You don't need a cable as thick as with 5V.
Keep in mind that the USB specifications only recently got updated for such high charging currents, so it is advisable to use only the cable that comes with the phone as USB cables in general don't need to provide such high currents by spec!
Click to expand...
Click to collapse
That sounds correct, although my Samsung wall adapter is fast charge capable, and was provided with a cable (and not a cheap one), that basically can't be use for fast charging with the G5, that looks silly...

Gemini PDA picky about USB-C chargers?

My Google Pixel or ASUS chromebook chargers don't seem to work unless the pda is off. I'm disappointed that this device didn't implement USB-PD and that I can't charge from either side. What's the point of a standard connector if you need a proprietary power brick. MediaTek Pump Express was a poor choice.

I agree. So plugging into your charger when the Gemini is off WILL charge it?
I have a USB-C charger in my truck, and I will say that when my Gemini is plugged in it will hold the charge at whatever level it's at. It won't charge it, but at least power won't be depleted. Still disappointing, for sure.

dimex said:
I agree. So plugging into your charger when the Gemini is off WILL charge it?
I have a USB-C charger in my truck, and I will say that when my Gemini is plugged in it will hold the charge at whatever level it's at. It won't charge it, but at least power won't be depleted. Still disappointing, for sure.
Click to expand...
Click to collapse
Yes, if my Gemini PDA is off-off, my Google Pixel USB charger does seem to charge it. I don't have any numbers, but I doubt it's using the higher voltage modes so it's probably a slow charge. The red charging light comes on after maybe a second. Same poor behavior using an Anker PowerCore+ 26800 USB-PD with J5 Create JUCX01 USB-C to USB-C cables (an expensive but highly regarded cable supporting 100W power delivery AND 10 Gbps transfers). My car's AOLIEKS 48W USB-C USB-PD cigarette lighter port adapter is also useless for the gemini PDA when using the 30 W USB-PD port with a JUCX01 cable. I'll try using the QC 3.0 USB-A port with Gemini-provided USB cable tonight.
None of my standard USB-C chargers seem to do anything at all when the Gemini PDA is on. As though the cable isn't even detected. This indicates a firmware issue in the charge controller, IMHO. I looked closely at the Gemini-provided USB cables and the USB-C plug seems maybe 0.5mm longer than my other USB-C cables, so maybe it's a physical thing but I doubt it.

rgmmm said:
Yes, if my Gemini PDA is off-off, my Google Pixel USB charger does seem to charge it. I don't have any numbers, but I doubt it's using the higher voltage modes so it's probably a slow charge. The red charging light comes on after maybe a second. Same poor behavior using an Anker PowerCore+ 26800 USB-PD with J5 Create JUCX01 USB-C to USB-C cables (an expensive but highly regarded cable supporting 100W power delivery AND 10 Gbps transfers). My car's AOLIEKS 48W USB-C USB-PD cigarette lighter port adapter is also useless for the gemini PDA when using the 30 W USB-PD port with a JUCX01 cable. I'll try using the QC 3.0 USB-A port with Gemini-provided USB cable tonight.
None of my standard USB-C chargers seem to do anything at all when the Gemini PDA is on. As though the cable isn't even detected. This indicates a firmware issue in the charge controller, IMHO. I looked closely at the Gemini-provided USB cables and the USB-C plug seems maybe 0.5mm longer than my other USB-C cables, so maybe it's a physical thing but I doubt it.
Click to expand...
Click to collapse
I was adding a 6-outlet wall tap to the outlet near my bedside table today, and while consolidating chargers I plugged the Gemini's USB-C cable into the AUKEY 12W Dual Port Home Travel USB Wall Charger Adapter - Black charger I have. It charges the Gemini, whether it's on or off. Not sure about voltages or numbers either, but the Battery page in settings showed "Charging by AC" and the time remaining seemed pretty short.

There does seem to be some magic sauce with the included USB cable. Using that cable worked fine with my power bank, but not my car charger.

I've done some testing using a Pluggable USB-C meter (can't post links due to being new, it's on amazon).
Charging is only on the left port. (More on that later.)
Using the supplied charger + cable I get 8.8v at 1.35A (close to the 9v the charger has printed on the back, charger says it supports 12v according to the back but I guess the Gemini doesn't).
Using an Anker PowerPort+ (60w, one type-c and USB A ports) I get:
- Anker USB A to C cable: 5v (well, 4.78v), 1.8A
- Anker USB-C to C cable: Nothing. :/ (the pluggable adapter doesn't even turn on, presumably not seeing any negotiation to even turn on).
Also tried a few other USB C cables and power supplies (Apple, Chromebook) and they don't charge it or pass power.
While the left port is the only one that will charge, the Gemini will take power on the right hand port -- the amount varying by usage it seems (I've seen between 0.15A and 0.41A when worked hard), so presumably it is possible to take power from a hub which should mean the device stays alive for longer but won't charge.
I hope it's possible to add proper PD / type C charging in a software update, for me a huge advantage of type C is not needing to have different adapters for fast charging... (I'm a little confused because pump express claims to support USB PD on mediatek. c o m / features/pump-express (sorry mangled url because I can't post them...), not sure what that means in non-marketing speak as it obviously doesn't work).
Forgot to test with it turned entirely off:
- It does charge off the Anker USB-C charger via C-to-C cable, but only at 4.96v, 0.38A, i.e. you're going to be waiting a while for a charge. Makes me hopeful this is a software thing though.
---------- Post added at 09:51 PM ---------- Previous post was at 09:32 PM ----------
Replying to myself, but thought this was useful to point out:
psionfan said:
It does charge off the Anker USB-C charger via C-to-C cable, but only at 4.96v, 0.38A, i.e. you're going to be waiting a while for a charge.
Click to expand...
Click to collapse
...which does lead to an interesting trick:
Turn it off, plug it to the type C charger, then it will continue charging at a low rate while on. Could be useful if you forget the right charger (which is totally something I see myself doing).

USB-C charging is a compatibility mess, and yes, it seems Gemini PDA is on the bad end of it. I have various
But I had an LG phone that couldn't reliably charge from a MacBook Pro USB-C power supply--and it seems that charger can't charge my Gemini at all. Two rather mainstream companies that can't manage to implement a standard and make it work right, Gemini can't make it work at all, isn't unique in having problems, but clearly on the bad end...
Sounds like the USB-C standard is badly designed.
-kb

Charging Problem Solved "I Think"

I have been having problems charging my LG V20. When driving and streaming music with Waze I notice that I'm loosing charge capacity, so I have to only use Waze when absolutely necessary, during traffic jams or finding a restaurant or store etc. I keep getting intermittent "Slow Charging" or "Use OEM Charger & Cable" messages. I don't have the OEM charger or cable so I have been purchasing chargers & cables. I bought a 4 port 12V charger with QC 3.0 expecting that to solve my problem. The charger didn't change anything. So I bought a few USB 3.0 cables and just one time I got a "Fast Charging" session. I read a review about a charger like mine and the review rated the charger as poor. So I bought another QC 3.0 charger and went out to the car with the new charger and all my C type cables. Went through all 5 of my 3 ft cables and once again I keep getting intermittent "Slow Charging" or "Use OEM Charger & Cable" messages with the new charger. Bummer. I also have two short 25cm cables that I tried in desperation and Wow, both of these short cables produce consistent "Fast Charging" sessions. With both chargers! The 25cm cables are too short to reach where I mount my phone so I just ordered a 50cm Ugreen USB C Cable 5A Super Charge Cable. I'm hoping a short (less resistance) high quality cable will solve my problem. Any suggestions on another brand 50cm cable I should order as a backup?

rredmed said:
I have been having problems charging my LG V20. When driving and streaming music with Waze I notice that I'm loosing charge capacity, so I have to only use Waze when absolutely necessary, during traffic jams or finding a restaurant or store etc. I keep getting intermittent "Slow Charging" or "Use OEM Charger & Cable" messages. I don't have the OEM charger or cable so I have been purchasing chargers & cables. I bought a 4 port 12V charger with QC 3.0 expecting that to solve my problem. The charger didn't change anything. So I bought a few USB 3.0 cables and just one time I got a "Fast Charging" session. I read a review about a charger like mine and the review rated the charger as poor. So I bought another QC 3.0 charger and went out to the car with the new charger and all my C type cables. Went through all 5 of my 3 ft cables and once again I keep getting intermittent "Slow Charging" or "Use OEM Charger & Cable" messages with the new charger. Bummer. I also have two short 25cm cables that I tried in desperation and Wow, both of these short cables produce consistent "Fast Charging" sessions. With both chargers! The 25cm cables are too short to reach where I mount my phone so I just ordered a 50cm Ugreen USB C Cable 5A Super Charge Cable. I'm hoping a short (less resistance) high quality cable will solve my problem. Any suggestions on another brand 50cm cable I should order as a backup?
Click to expand...
Click to collapse
You need to check the voltage and amperage of your charger and then see if you can find some specs about your device and look for what voltage and amperage charger it is supposed to have. The power output of the charger is more relevant to charge capacity than the length of the cable being used.
Sent from my LGL84VL using Tapatalk

Droidriven said:
You need to check the voltage and amperage of your charger and then see if you can find some specs about your device and look for what voltage and amperage charger it is supposed to have. The power output of the charger is more relevant to charge capacity than the length of the cable being used.
Sent from my LGL84VL using Tapatalk
Click to expand...
Click to collapse
How do you explain multiple charges working in quick charge mode only with the short cables I have and not with any of the other cables, other than a problem with the cables?

rredmed said:
How do you explain multiple charges working in quick charge mode only with the short cables I have and not with any of the other cables, other than a problem with the cables?
Click to expand...
Click to collapse
Did you do any investigating to determine what voltage and amperage charger is required by your specific device? Did you compare that to the chargers that you have in order to verify whether the chargers you have are correctly rated for your device? That is a more important detail than you realize.
Yeah, I know what you're probably thinking, "I've never had a problem using a different charger to charge other devices that I have used/owned, how can it be an issue now?"
The answer to that is, not all devices are equal.
Maybe the charger is rated lower than is required by the device and when used with the longer, higher resistance cords, it can't provide enough power, but when using the short cord it's lower resistance might be enough to make up the difference. I've had this issue on a Kindle tablet, the charger for my phone would not charge the device quickly enough unless the device was turned off, it would even give the "may not charge" message when I would plug it in, but when I bought the proper charger for it, VIOLA!!, it charged correctly. Well what do you know, the correct charger and cord actually charges it correctly, imagine that, who would have ever thought that using the correct hardware would get the correct results. I'm being sarcastic, but you get my point.
It has more to do with how much the charger itself can provide than it does the length of the cord.
For example, if you had the original charger and the original cord, it would provide the correct amount of charge, but if you were to use a 10ft cord with the stock charger instead of the 3-6 foot that comes with the device, you would see a reduction in how much power it supplies, even more so if the charger is plugged into a drop cord/extension cord at the same time. I've had this exact issue on a couple of devices.
Another example is if you have a charger that is rated below what the device requires and you used the 3-6 ft stock cord, it could decrease the amount of power supplied by the charger block because the charger can't supply enough power to overcome the resistance of the stock cord, but when using the shorter, lower resistance cord with the lower rated charger, the cord's resistance could be low enough that it allows enough power to be supplied.
I'm not saying that it is 100% the issue that you are having, I'm saying that it is something to look into because it is more likely to be your issue because it is common for devices to charge faster, slower or not at all when using a charger that has a different rating than required by the device. Other possibilities are a damaged USB port on the device or the software has become corrupted, you would probably need to flash the stock firmware to fix the corrupted software.
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