Android Fast Charge + ASRock App Charger = nope?

[QueBert]

I like to charge my phone on my PC, my iP6+ will charge I dunno in something like 120 minutes from completely dead if I use one the ports on my MB that support ASRock's high speed charging crap. I just hooked my Flex 2 up, was @ 20% battery, the estimator on the phone's saying 4.5 hours left to fully charged. I let it run 10 minutes and it only went up like 2-3%. Anyone have experience with charging on an ASRock MB? I switched the USB to charge mode on the phone thinking that might improve it. My lock screen's still saying to use a standard charger to charge faster. Do I have to use the wall charger that came with my phone to get it to charge fast? I don't even care if it's 80 minutes on the PC, but 4 1/2 hours to charge 80%'s freaking crazy.

This is a USB 3 port I'm using which can even charge an iPad at pretty much the maximum speed. Google's not turning up anything about how to get these ports to play nicely with Android devices though.

 

[tsupersonic]

Very interesting. I never tried charging my Nexus 6P from my desktop PC (also has an Asrock Z87 mobo w/ app charger installed). My 6P says it's charging slowly on a USB3 port, and has no ETA till full. I tried with two different cables (both Benson approved). I routinely charge my iPad/iPhone w/ my desktop, and both appear to charge fast. I also tried the same test on my MBPr, with the exact same results.

Ampere indicates the phone is charging anywhere from 310 mA/h to 390 mA/h.

 

[JeffMD]

Try installing drivers for the lg phone. Pc usb ports don't usually kick in higher voltages unless it can detect that the device supports it. Also is the usb cable original or 3rd party replacement? Cheap usb cables will reduce power throughout.

 

[QueBert]

Try installing drivers for the lg phone. Pc usb ports don't usually kick in higher voltages unless it can detect that the device supports it. Also is the usb cable original or 3rd party replacement? Cheap usb cables will reduce power throughout.

I have the LG drivers + cable that came with the phone. Looks like it I might be stuck here, sucks but it is what it is I suppose. I wonder how it would charge on the computer at work. I know on that one my iPhone takes like 8 hours. This one might not even charge lol. This is frustrating and almost makes me want to take the phone back. But I'm guessing all new Android phones have fast charge? So it would be the same issue, my older Android phones took nowhere near this long to charge on my computer.

 

[JeffMD]

Yea I don't know of any phone made now that does not do 2.0 amp charging. I would blame the motherboard, not the phone. I bet all 2.0 amp chargers would work fine.

 

[tsupersonic]

Yea I don't know of any phone made now that does not do 2.0 amp charging. I would blame the motherboard, not the phone. I bet all 2.0 amp chargers would work fine.

Nope, that logic doesn't make any sense. USB 3 port specifies 900 mA max current, so you would get nowhere close to 2 A rate on a USB 3 port. In my case, the USB 3 port is only supplying a max of 390 mA, which is lower than the USB 3 standard.

 

[QueBert]

Yea I don't know of any phone made now that does not do 2.0 amp charging. I would blame the motherboard, not the phone. I bet all 2.0 amp chargers would work fine.

My iPhone charges just about the same speed on my PC that it does with an iPad charger. With a normal iPhone charger my phone takes a long ass time to charge. I'm not sure what amp the MB's port puts out. But it's definitely close to 2, if not a full 2. While I dunno if my iPhone takes full advantage of the 2.1 amp iPad charger, I do know it makes it charge like 2x as fast as the 1ma charger. The problem here's something in the fast charge chip I'm guessing. I can charge an iPad from dead to full on my PC much quicker then I can charge an LG Flex 2, which doesn't make a bit of sense to me. I can't find any technical specs on App Charger on Google, but it definitely put out a lot more amps than a standard USB 2/3 port. No way in hell could I charge an iPad from dead to full in under 3.5 hours on a 500-900ma port.

 

[stlc8tr]

Maybe ASRock is doing what Apple does?

From what I've read, iOS devices will charge faster on Macs due to a special "extra operating current" that Macs apply when it detects an Apple device. It's normally 500mA for the USB2 port but if you attach a single Apple device (and this only works on the first/only device attached), an additional 1600mA of "extra charging current" is applied for a total of 2.1A on 2011 or later models (less additional current is available on older models).

Edit. More info here.

http://9to5mac.com/2011/03/25/new-macbook-pros-get-serious-ipad-charging-juice-in-their-usb-ports/

https://support.apple.com/en-us/HT204377

 

[JeffMD]

Nope, that logic doesn't make any sense. USB 3 port specifies 900 mA max current, so you would get nowhere close to 2 A rate on a USB 3 port. In my case, the USB 3 port is only supplying a max of 390 mA, which is lower than the USB 3 standard.

Designated "Charging" ports on motherboards are capable of 2-2.5 amps as long as it properly detects it is charging such a device. However during the initial handshake (connection) it is .5 amps (.35 if your cable sucks ). So clearly the motherboard is not recognising the phone as a fast charge device.

 

[QueBert]

Google's not turning up anything useful, I don't know if it's a Qualcom chipset thing or something Google could address in an Android update. I went ahead and submitted something to Google about it, but even if it is something they could fix in code. I don't expect to ever see it even addressed. The crazy thing is it actually charges my phone a lot slower than my HTC One.

Sucks.

 

[QueBert]

Could someone with a non LG phone with has Fast Charge that's about 50% dead could plug it into a USB port and tell me what it says for time remaining to charge?

My Flex 2 was dead the other day, it was on the charger 9 hours on a 3.0 port that supports Apple rapid charge or whatever the hell it's called. and it wasn't even 100%. In that same time I could charge my iPhone, my HTC One & an iPad Mini on the same port. Google isn't helping me figure out if this is just an LG thing or something with Fast Charge in general. I'm using the LG cable.

 

[JeffMD]

Quit using your pc, it obviously sucks hard at what it is doing.

 

[jchu14]

The Asrock motherboard fast charging port is only designed for apple products.

http://asrock.com/feature/appcharger/index.asp The application is called 'The best Apple charge companion' for a reason.

So you're stuck with 500ma current of the usb port since the LG Flex 2 is not able to talk to the motherboard to tell it to send more current. Any update to fix this would have to come from Asrock side, not Google or LG.

I would just use a dedicated charger for the LG. Do you have a specific reason why you want to use your pc to charge? Do you not have access to a power plug?

 

[Puffnstuff]

Speaking solely for my mb there are settings in bios to enable fast charge and drivers that have to be installed plus a program for it that I have to run in order to enable it to my devices. Of course, as was already stated, your mb has to detect the device before it will allow it.

 

[QueBert]

The Asrock motherboard fast charging port is only designed for apple products.

http://asrock.com/feature/appcharger/index.asp The application is called 'The best Apple charge companion' for a reason.

So you're stuck with 500ma current of the usb port since the LG Flex 2 is not able to talk to the motherboard to tell it to send more current. Any update to fix this would have to come from Asrock side, not Google or LG.

I would just use a dedicated charger for the LG. Do you have a specific reason why you want to use your pc to charge? Do you not have access to a power plug?

I don't have a plug close to where the PC's at, and my HTC One charges realitivly fast. Maybe 3.5 hours for a full charge. I've had other Android phones and they all charged at decent speeds from this same PC. I will say the ports on the MB that charge my iPhone way quicker also have charged the 3 other Android phones I've had besides the Flex 2 quicker also, although not quite as speedy. Don't all flag ship Android phones now have fast charge? Looks like I'll be going back to using my HTC One again.

 

[JeffMD]

You have a plug where your pc plugs into.

 

[jchu14]

I don't have a plug close to where the PC's at, and my HTC One charges realitivly fast. Maybe 3.5 hours for a full charge. I've had other Android phones and they all charged at decent speeds from this same PC. I will say the ports on the MB that charge my iPhone way quicker also have charged the 3 other Android phones I've had besides the Flex 2 quicker also, although not quite as speedy. Don't all flag ship Android phones now have fast charge? Looks like I'll be going back to using my HTC One again.

Hm... What amperage does the HTC One say it's receiving when charging? Could it be just that the flex 2 has a much bigger battery than the HTC One so that's why it's charging slower? The LG Flex 2 has a 3000mah battery while the HTC One (assuming M7) has a 2300mah battery. That doesn't quite explain the huge time difference though. Did you try using the HTC one cable on the LG?

Another solution would be just getting an extension cord and plug the PC and the cell phone charger to the extension cord.

 

[stlc8tr]

Use Ampere to see what speed the two devices are charging at.

https://play.google.com/store/apps/details?id=com.gombosdev.ampere&hl=en