Hello
As you know, our device doesnt get charged by the USB cable it comes with (or veeeeeery slow).
As I have a solar charging device with USB slots, I need a compatible USB cable. Somehow it has to work, is there some converter or something ?
Thanks!
Dominik
Eh? My device charges just fine with the included cable.
You will have trouble charging it from a solar powered USB charger as I'm guessing it will only put out 5V at maybe 500mA. That's not enough to juice the TF. It's not the cable though.
Because ASUS used a USB connector on its cable, unfortunately does *not* mean this USB connector 100% follows the specifications for USB.
It has a trick, whereby, when connecting to your PC it works like USB at 5v. But, when connecting to a 15v charger it switches to use 15v instead.
The TF charging indicator, and Android OS battery settings, only indicate charging when 15v applied. At 5v it may trickle charge with screen & wifi & ??? turned OFF. I never try charging at 5v because it is too slow.
LOL
I don't think it charges at all at 5v?
EDIT:
How can I delete a post?
Neo3D said:
I don't think it charges at all at 5v?
Click to expand...
Click to collapse
It will, provided you have the amperage. But its only trickle so its only really charging with the screen off and charges slower than the tablet uses battery.
When I connect wall charger to my galaxy i9100 it notify that charger is connected and charging indicator also tells that it is charging BUT it is NOT charging. THe battery level's going down as the time passed ....
But strangely when I connect it to my PC via USB cable it actually starts charging ...
There's nothing really running as some of u might be thinkin that an app might be using high CPU while charging ... but it is not the case as it is charging fine when connected to PC.
I think my wall charger is faulty... but if it is then why it shows charging when connected though its NOT charging the battery at all?
Any help???
---Anupam
I am having a strange issue on my Xperia S I would like to know if this is impacting other people. I am running Build 6.0.A.3.67 (FR) and when I charge my phone through the USB Hub (externally powered) it will actually begin discharging instead of charging in certain circumstances.
Here is how it can be reproduced:
1) Plug phone into USB Hub with PC (W7x64) in Standby mode - Phone will show as being charged by AC and battery will charge without issue.
2) Wake PC out of Standby - This will cause the Phone to switch from being charged in AC mode to USB mode but phone seems to continue to charge.
3) Put PC in Standby mode again - Phone will stop charging and will actually begin to discharge at a very fast rate 5% / hour.
To check actual charging status (charging AC/USB or discharging) go to Settings -> About Phone -> Status
To get the phone to go back to AC charging status it is necessary to unplug the USB cable from the phone and re-insert it and it will go back to charging in AC mode. It seems there is something in the phone software or kernel that blocks going from USB mode back to AC mode without unplugging the USB cable.
I have tried 2 powered USB hubs (D-Link and Dr. Bott) and same issue with both. I have tried 2 different USB cables and tested the same steps using my HTC Desire and Flyer and issue only occurs on the Xperia S. 1 difference is the 2 HTC devices always show USB charging mode and never AC but they continue charging without issue as PC goes from Standy to Actve to Standby again.
Can someone else please try to see if their phone also behaves the same way when following the steps above? Does anyone have any suggestions on how to fix? My only option currently is to charge only with an AC charger and not with the USB cable connected to my PC USB hub or I can wake up with my phone dead in the morning.
Thank you for any advice (sorry for the long post)
Hello,
I'm using a PointOfView P742C and it needs to be always ON, I have DC charge cable (>500mA) always connected, and when I connect the USB cable and start communicating it stops charging com DC cable and starts charging from USB cable (at ~500mA)...
Eventually it drains more than 500mA and drains all the battery and power off...
How can I force fast charge on USB, or force it always to charge from DC cable?
I do not understand why it have a DC port, if it chooses from USB port when have both connected...
Thanks for any tip.
Do I need a special usb plug to allow rapid charging?
I have a usb plug (which I connect the usb cable to from the mobile when charging) and it has an output of 5v.
Will I get rapid charging if I connect the mobile to my laptop?
Thanks
You need a Qualcomm Quick Charge 3.0 wall plug. I bought this exact one (US plug model) in china and it works really well, get's charged from 0 to 100% in 1:30hrs, getting the first 75% between the 0:45 and the 1:00hrs of charge.