is USB charging the only power source or is there slot for battery?
1729819
USB only, the device has built in USB plug built inin so no wires to mess with. The "charger"is part of the camera.
401671
I generally plug mine into the computer. If you have a Wall adapter , you can charge that way as well. It doesn't come with one though.
1604983
If there is, it's by no means accessible to the average consumer. The clear answer is no. You can charge this through its micro usb port and then have it ready to power an electronic off the (full-size) usb slot when needed on the go. If it dies, you get a new one. If that's a concern then get a better, more expensive one.
2272503
The USB charges nothing in this application. It will not charge a rechargeable battery. In this application it's an additional power source to run the fan.
1309607
Yes, it has a build in rechargeable battery with USB connection if you don't have a computer there are chargers available.
1328624
It uses a wall charger, no USB here. The unit has a big battery and seems to last forever so I am guessing it needs more juice than a USB charger can provide.
478570
It charges the battery only. It does have usb.this makes it possible for me to never have to use a usb to charge my phone.
733806
The USB is output only, not input. You can use that port for charging devices with an already charged battery. For instance, I charged my iPhone during a power outage. Pretty handy, but it doesn't work the other way.
770083
There isn't one. There are 3 ports one for charging battery itself. 2 for charging devices. The only button is power to turn battery on to charge it. In fact I just ordered a second battery I love it so much
431583
As far as I can tell, the battery has to be taken out to be recharged. There is no micro USB or other charging port.
56804
Hi, to charge the battery has to be removed it. The usb is only to import images.
1529800
I haven't tried charging another device from this but the operation does not need power supply. Simply plugging in to the USB port is sufficient to run all the functions.
317346
As pictured, USB only, no adapter supplied, and there is no connector for external power.
1543276
It is only the small socket that can charge. But I got an adaptor to convert the small socket to Standard USB socket.
934544
I'd like to clarify that the USB port is for charging another device, not for charging the battery. In other words, it has a USB port like you would find on your computer for plugging something else in to charge. You can not power this charger via USB, only by plugging it into a wall outlet.
664014
Hi Alex, Any available USB power will work. I charge mine using my computer, a phone charger, or even the USB port on a printer.
1227084
A USB cord is supplied. You plug it into your computer or a USB adapter (not included) to charge . I bought a second battery and a generic charger off of eBay. So I have a spare charged battery that I switch when needed.