Will it power a connected USB device while you charge the external battery pack?
801398
Yes, it will power the connected USB device while it is on charging. However, please don't forget to press the power button to start it.
1132930
I've never tried to use an external USB drive but I doubt it will power it. As for folders, it will display the
1014757
Nope. Looks like the USB ports are not powered while in recharge mode, even though the recharge port is dedicated to recharging.
790663
It could AS LONG As the device you are powering has the same plug-in as on the cable. In my case I was looking to power an older external hard drive but unfortunately the plug-in on the cable was just a little bit different.
760249
I just checked the instructions that came with the unit. It states that you can charge USB devices on AC or battery power but in order to save battery life the unit will cease charging external devices if being played on a high volume setting during battery operation. Hope that helps. ;)
1623167
The short answer is yes. The unit has an on/off switch. The USB cable will charge it while off and charge/power it when on.
1547062
It requires auxilliary power. USB won't power it. But it comes with a power pack.
2106651
Technically, the answer is yes; it gains its power externally--it has no internal power source. However, in common parlance the answer the answer is no, since it gains its power through the usb and does not have a separate power cord or connection.
822207
It will charge any device that connect with USB and requires the voltage and amps as described in the ad for the charger. I used mine to power the magic jack.
363749
I charge it with the usb. It doesn't last long. I am going to return it. Doesn't really work good if needed while out.
2160664
I have a external battery pack that can easily and reliably charge it. When I have this cable plugged it refuses to light up like its chargingWhen I have left it charging I did not notice any additional boost in charging time. Aside from the bump for the cable
146252
Depends. If the device is powered off it will almost always charge (slowly). If it's turned on it might either charge *very* slowly, or not at all, or even still lose charge if you're actually using the device. (You'll see the latter with high-end phones or tablets if you are running a 3D-rendered game -- the device will be using more power than any USB charger can safely deliver, so the battery will slowly drain even if it's plugged in. With a crappy charger this can happen even if the device isn't doing much.)
1581791
it will work while it is charging. it only provides a usb cord doesn't have a hook up to wall outlet. designed to charge off computer
755582
The USB hub itself is a powered device and connects to an outlet. It will charge anything as long as it is powered to an outlet.
42403
Yes, a device like this would cause a powered external drive to stay on as long as the USB hub is powered.
1799814
It could be charged when charging another device. However, it's not suggested, because this will greatly reduce the useful life of the battery pack. Since you have access to a plug, why don't you charge the other device directly?
284649
Yes..it will charge it. Takes a while if battery is drawn down all the way.