Why doesn't my Droid phone charge when connected to a powered USB hub that is not connected to my computer?

Posted by pkaeding on Super User See other posts from Super User or by pkaeding
Published on 2009-12-02T03:10:41Z Indexed on 2010/12/28 23:55 UTC
Read the original article Hit count: 310

Filed under:

usb

|

charging

|

hub

|

motorola-droid

I notice that my new Motorola Droid phone charges perfectly fine when I connect it to my computer via the USB cable, or if I connect it to a car cigarette lighter->USB adapter, or a wall power->USB adapter. It also works fine when I connect it to a powered USB hub that is connected to my computer.

However, if that same powered USB hub is not connected to my computer when I connect the phone, it does not charge. If I connect the computer to the hub, and then connect the phone to the hub, it will charge. If I then disconnect the computer from the hub, the phone will continue to charge.

Does anyone know why this is happening, or what I can do to be able to charge my phone from a powered hub, without my computer being present?

© Super User or respective owner

Related posts about usb

External HDD USB 3.0 failure

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
[ 2560.376113] usb 9-1: new high-speed USB device number 2 using xhci_hcd [ 2560.376186] usb 9-1: Device not responding to set address. [ 2560.580136] usb 9-1: Device not responding to set address. [ 2560.784104] usb 9-1: device not accepting address 2, error -71 [ 2560.840127] hub 9-0:1.0: unable… >>> More
usb mouse/keyboard doesn't work with 3.11.0-12-generic kernel

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I can't use my usb keyboard/mouse after upgrade from raring to saucy. The keyboard works in grub menu and if I boot with the previous kernel version (3.8.0-31-generic). My new kernel version is 3.11.0-12-generic. I've got Mad Catz R.A.T.7 wired USB mouse, Canyon CNL-MBMSO02 wired usb mouse and Logitech… >>> More
USB Drive Not recognized

as seen on Super User - Search for 'Super User'
My Friend's Pen Drive, which was working well very well just few days ago, is not being recognized after getting used by a virus affected machine. Its not on fdisk -l or lsusb However in dmesg I can see the following: [ 977.300013] usb 5-2: new full speed USB device using uhci_hcd and address 2 [… >>> More
Error in installing ZTE AC2738 on ubuntu 3.0.0-12-generic

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am getting this error ,struct usb_serial_driver has no member named shutdown. I am installing on 64bit ubuntu 3.0.0-12-generic ... Beginning Verify CD ... ... Verify CD Succeed! ... Beginning Copy Install Package Files ... ... will take a long time, waiting 5 seconds, please ... Copy Install… >>> More
HSDPA modem only working on certain USB ports

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Depending on which USB port I use to connect my HSDPA modem, the network manager will connect to the internet or not. I used to work (i.e. established a internet connection automatically) on all ports, but over time it simply stopped on some ports. lsusb output in all cases looks like that (Device… >>> More

Related posts about charging

Diagnosing laptop charging issues

as seen on Super User - Search for 'Super User'
My HP dv6000 laptop will not run on battery power. It will only run while plugged into the wall. I have already replaced the battery, but it still will not operate on battery power. The problem began slowly. The original battery's life got shorter and shorter, until eventually it would only last… >>> More
Samsung Mobile Charging Up Colleges Campuses

as seen on Internet.com - Search for 'Internet.com'
Cell phone vendor's installed mobile-device charging stations in airports across the country and is now in the process of doing the same at colleges and universities. >>> More
Bash script throws, "syntax error near unexpected token `}'" when ran

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am trying to write a script to monitor some battery statuses on a laptop running as a server. To accomplish this, I have already started to write this code: #! /bin/bash # A script to monitor battery statuses and send out email notifications #take care of looping the script for (( ; ; )) do #First… >>> More
Netbook performs hard shutdown without warning on low battery power

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
My Asus EEE netbook performs a hard shutdown when it reaches low battery power, without giving any warning - i.e. the power just goes off, without any shutdown process. I can't find anything in the syslog, and no error messages are printed before it happens. I've had this problem on previous (K)Ubuntu… >>> More
Why is my battery not charging?

as seen on Super User - Search for 'Super User'
I have my battery at 95% and it's not charging while plugged in. I'm using Windows 7 Ultimate. Do you know if it might be a setting somewhere? Here's a screenshot: >>> More