Hi,
Will charging the phone using a usb extension + original usb cable will make the charging much longer to be full?
The longer the cable, the less voltage reaches the battery. I've experienced this as well.
It depends more on the quality of the cable (section), than it's length.
Anyway, charging from a usb port delivers only (more or less) 500mA, from the power adapter : 1000mA, so except if you have one of those recent gigabyte motherboard including the ON/OFF CHARGE feature (enables ~1000mA output to usb ports), it's always better to charge from the power adapter.
Has anybody noticed a difference in the charge time using the 3.0 USB cord? I've tried charging with a 2.0 and a 3.0 but I haven't noticed much difference. Obviously haven't had the device long enough to really test it out over a period of time.
agent929 said:
Has anybody noticed a difference in the charge time using the 3.0 USB cord? I've tried charging with a 2.0 and a 3.0 but I haven't noticed much difference. Obviously haven't had the device long enough to really test it out over a period of time.
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I read somewhere on the net that the 3.0 usb cord is only for data transfer. Not for charging purposes. Correct me if I'm wrong. I still haven't got a note 3. Just patiently waiting till I'm up for an upgrade.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
So far I have watched a number of benchmark videos, and done as much research as possible (not literally):
- USB 3.0 will increase USB charging rates and USB charging speeds compared to its USB 2.0 counterpart
- USB 3.0 will NOT increase charging through a 2 Amp or 1 Amp charger compared to its USB 2.0 counterpart
- Biggest charging factor will be whether you are using a 1 or 2 Amp wall charger
---------- Post added at 04:26 PM ---------- Previous post was at 04:23 PM ----------
"There are a few factors that come into play here, so let’s start with “power loads.” USB 2.0 is restricted to five loads, while USB 3.0 ups that to six. OK, so that’s a 20 percent increase in how many loads a USB port can supply, but there’s more to it. Each load in USB 2.0 is 100mA of current. Simple math confirms the 500mA power supply for today’s USB interfaces — five loads at 100mA equals the 500mA that USB 2.0 can supply a device.
The specification for USB 3.0, however raises the not only the number of loads, but the current per load as well — 150mA, which is 50 percent more per load. Combining the six loads of USB 3.0 and its higher 150mA current per load nets you 900 mA for power supply with the new specification."
Here is the link for this article: http://gigaom.com/2010/01/12/usb-3-0-faster-data-faster-device-charging/
So if i have a wall charger that support 3amps will it charge faster?
Sent from my SAMSUNG-SM-N900A using Tapatalk 4
Battery charging is limited by a few things:
First and foremost the PCM (protection circuit module), it controls how fast the battery charges and discharges...
The PCM limits the Note 3 to Max 900mA (I haven't personally verified, don't have a Note 3 yet)
In the past, USB 2.0 devices for Samsung, the wall warts shorted out the data pins on the USB cable, which allowed the phone to charge at full speed over the usb 2.0 interface. The wall wart needed to be atleast 1A
The USB 2.0 ports are limited to 500mA output
The USB 3.0 ports are currently designed for 900mA output, although the spec can go to 5A or 5,000mA
So the advantage is you can now charge your Note 3 at the same speeds via a USB 3.0 on your PC as you can on the wall wart.
Now if you hack a usb cable and short the data wires and plug a usb 2 phone into a 1 amp usb port, you can get the full charging speed, but this took some effort.
I have noticed that the charging when plugged into my PC is much faster with the USB 3.0 cable, while charging on my 2 amp stock charger seems indistinguishable between 2.0 and 3.0 cables
ImSteevin said:
I have noticed that the charging when plugged into my PC is much faster with the USB 3.0 cable, while charging on my 2 amp stock charger seems indistinguishable between 2.0 and 3.0 cables
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This is correct. Only makes a difference when using the 3.0 cable when plugged up to a USB 3.0 port on your pc. Doesn't make a difference which cable is used when charging from a wall outlet.
Sent from my SAMSUNG-SM-N900A using Tapatalk 4
americasteam said:
ImSteevin said:
I have noticed that the charging when plugged into my PC is much faster with the USB 3.0 cable, while charging on my 2 amp stock charger seems indistinguishable between 2.0 and 3.0 cables
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Click to collapse
This is correct. Only makes a difference when using the 3.0 cable when plugged up to a USB 3.0 port on your pc. Doesn't make a difference which cable is used when charging from a wall outlet.
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I'm not sure whether this is entirely correct...
When I plugged my phone to a USB 3.0 port on my Retina MacBook Pro Mid 2012, it's registered as (according to System Report), a USB 2.0 device. At least, it's charging at 500mah. Fyi, using the same cable/port, my USB 3.0 external hard drive is registered as a USB 3.0 device.
My m17x alienware(2012) reads it as a USB 3 device
Sent from my SAMSUNG-SM-N900A using XDA Premium 4 mobile app
ruebarb said:
Battery charging is limited by a few things:
First and foremost the PCM (protection circuit module), it controls how fast the battery charges and discharges...
The PCM limits the Note 3 to Max 900mA (I haven't personally verified, don't have a Note 3 yet)
In the past, USB 2.0 devices for Samsung, the wall warts shorted out the data pins on the USB cable, which allowed the phone to charge at full speed over the usb 2.0 interface. The wall wart needed to be atleast 1A
The USB 2.0 ports are limited to 500mA output
The USB 3.0 ports are currently designed for 900mA output, although the spec can go to 5A or 5,000mA
So the advantage is you can now charge your Note 3 at the same speeds via a USB 3.0 on your PC as you can on the wall wart.
Now if you hack a usb cable and short the data wires and plug a usb 2 phone into a 1 amp usb port, you can get the full charging speed, but this took some effort.
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Adding to this post, the note 3 charges at 1.5Amps. I built my own usb charger and can verify the Amps, it charges at 1.5A on usb 2.0 cable, hacked usb 2.0 cable and USB 3.0. cable.
I can not verify how fast it charges on the Samsung charger or standard PC Usb.
We can assume it charges at 1.5 Amps on the Samsung charger as it is rating for 2.0 Amps
Build you own USB Charging Station
on my note 3, with either the usb 3.0 cable or 2.0 cable from my note 2, it charges at 1.2A...on my note 2, using the 2.0 cable, it charged at 1.8A...i got the current numbers from the Galaxy Charging Current app...
sinichi21 said:
So if i have a wall charger that support 3amps will it charge faster?
Sent from my SAMSUNG-SM-N900A using Tapatalk 4
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YES. I have a 1.5MAh car charger and a 3Amp car charger (the little cigarette lighter socket ones that fit kinda flush to the socket and the higher Amp one charges MUCH quicker than the single amp (or MAh etc. not sure what it's called but the higher one does charge noticeably faster.
Usb 3.0
ok i'm trying to use my usb 3.0 but the phone always times out before it will finish a long transfer usually times out around 5 min or so any advice or something I haven't changed because 5 min is not long enough to send movies or mass music
Jacson2 said:
ok i'm trying to use my usb 3.0 but the phone always times out before it will finish a long transfer usually times out around 5 min or so any advice or something I haven't changed because 5 min is not long enough to send movies or mass music
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That's typical with some USB hubs. Try going directly to the compter's port.
Rukbat said:
That's typical with some USB hubs. Try going directly to the compter's port.
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No, clearly NO.
Its a ROM issue.
Some ROMs have USB3 charging enabled and the phone charges all the time with max current.
ECHOE ROM is that one i know.
Omega ROM is the opposite part, charging over USB3 lasts forever.
Its my own experince, imstalled both ROMs, with same PC and same USB3 cable.
I am watching my IP cameras on the phone, on my desk, and with connected USB3 cable the Omega ROM drains battery only from watching.
With Echoe ROM, same phone, same cable, same PC, same cameras, the battery is charging very fast, during watching.
Other custom ROMs i installed have similar issue.
So ask your ROM cook to solve this problem.
So I'm not able to use the turbo charger at the moment and have it plugged into the computers USB. I just noticed that its going to take nearly 8 hours to charge..is this normal or is something causing the slow charge?
Sorry just realized I posted this in wrong section.
crookone10 said:
So I'm not able to use the turbo charger at the moment and have it plugged into the computers USB. I just noticed that its going to take nearly 8 hours to charge..is this normal or is something causing the slow charge?
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Computer USB only charges at ~0.5 A. if it's USB 2.0 or ~0.9 A if it's USB 3.0. That's opposed to the turbo charger which charges at well over 2 A.
Computer USB ports only supply 500mA for USB 2.0, or 900mA for USB 3.0. However, almost all Android devices determine whether you're plugged into the wall (AC) or a computer (USB) by whether the data pins are shorted together (as they are in android-compatible chargers -- but not iOS-compatible chargers). If the data pins are intact (or missing, like in most charge-only cables) then the device will charge at 500mA regardless. This is why some people experience slow charging with USB 3.0, or some wall chargers (even those rated for 2A).
Update: Just saw someone beat me to the punch a bit, but wanted to make a correction. Turbo chargers (Quick Charge 2.0) CAN charge at 3A, but the Moto Turbo Charger only charges at 1.6A for both 5V and 9V modes, or 1.2A for the 12V mode. Thus, it's not the amperage that's increased but the power (watts).
jt3 said:
Computer USB ports only supply 500mA for USB 2.0, or 900mA for USB 3.0. However, almost all Android devices determine whether you're plugged into the wall (AC) or a computer (USB) by whether the data pins are shorted together (as they are in android-compatible chargers -- but not iOS-compatible chargers). If the data pins are intact (or missing, like in most charge-only cables) then the device will charge at 500mA regardless. This is why some people experience slow charging with USB 3.0, or some wall chargers (even those rated for 2A).
Update: Just saw someone beat me to the punch a bit, but wanted to make a correction. Turbo chargers (Quick Charge 2.0) CAN charge at 3A, but the Moto Turbo Charger only charges at 1.6A for both 5V and 9V modes, or 1.2A for the 12V mode. Thus, it's not the amperage that's increased but the power (watts).
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Interesting, I just assumed the Turbo charger worked at higher amperage. Thanks for the education. :highfive:
gtalum said:
Interesting, I just assumed the Turbo charger worked at higher amperage. Thanks for the education. :highfive:
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No problem. I like to make that correction when I see it, because Quick Charge 2.0 adapters are starting to come out, and it makes it easier to compare them to the (rather expensive) Moto Turbo Charger if know its true specs. For instance, a lot of QC 2.0 adapters don't even have a 12V mode, but run their 9V mode at 1.67A. Since the Moto charger's power is the same in both 9V and 12V modes (14.4W), and the 9V mode of those other chargers actually push 15W, they can charge a bit faster than Moto's charger, although if you just saw the the lack of 12V or the "low" 1.67A rating, you might not catch that.
jt3 said:
Thus, it's not the amperage that's increased but the power (watts).
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P=IV
Amigo.
I've been searching around, and haven't really found an answer to this. I'm in the process of purchasing a car that has OEM AA, but unfortunately only one USB port, which apparently provides less than 1A of output. There is a 12V outlet in close proximity to the USB port. Are there any solutions out there for using AA while also providing higher amperage charging? Was thinking about trying a small hub/adapter (similar to what you would attach to a USB-C Macbook) but I wasn't sure if that would pass-through power as well. Using a stock Pixel 2.
Probably its not easy to achieve, but usually this is not a problem, you can still buy a different charger for rapid charging which works via the 12v outlet, and when its full or nearly full switch to the AA port, since even if its lower than 1A it will be enough to charge the phone ( or better: to not let it discharge) since the display is off during AA session
I use a USB Y Cable (https://www.startech.com/Cables/USB...xternal-Hard-Drive-USB-A-to-mini-B~USB2HABMY3) with a USB Mini to USB-C adapter.
I don't get the "Charging Rapidly" notification on the lock screen, but it does charge noticeably faster than before.
So there are two interesting threads going on... One about USB C Hubs and one about how the Tab S8 Series Super Fast Charge protocol works in real life. I'd like to see what people say about power pass-through with their USB C hubs. What it comes down to is that the Tab S8/plus/ultra really wants 10V @ 4.5V, but most chargers max out at 9V @ 3A or if they support PPS, 10V @ 3A. For hubs, I don't know what "PD Pass-Through" means or how it works and if it supports the PPS format Samsung wants. Many hubs say "support 100W 3.0 PD Pass-Through". What does this mean?
My UGREEN 70411 hub says it supports 100W PD 3.0 pass-through charging. But when I use the same cables and power supply, the charge going to the tablet battery drops precipitously with the hub in the chain:
65W PD 3.0/PPS power supply --> Tablet gives Super Fast Charge 2.0 with Ampere reporting 7A @ 4.12V charging the battery i.e. 30W
65W PD 3.0/PPS power supply --> 100W USB C Hub --> Tablet gives Fast Charging (not Super Fast Charging) with Ampere reporting 2A @ 4.12V charging the battery i.e. 8W
So it isn't even close to "passing through" the power.
Does anyone get better results? Do we need anything special in a hub to "pass through" the PPS protocol Samsung actually requires? Do I just have an old hub that doesn't support PPS?
Thanks,
Joe
I have the same issue. Using a brand new Anker USB C hub. No matter which high quality cables or 100w chargers I use, or mix of peripherals plugged into the hub (I use a 4k monitor and an SSD), the tablet doesn't charge. When the tablet is plugged in, and the cover is closed or screen is off, it charges as it should. Would really like an answer as to why this is, or a workaround. I'm trying to justify this as a laptop replacement, and inability to charge whilst simultaneusly in use and 'docked' is a potential dealbreaker.