what is the power source?
472270
If by power source you mean battery.. The pen top unscrews where a USB port is exposed and this is how you charge it.. It takes about 5 hours to burn through the stored energy however I used mine so much that it no longer works. Very novelty but that's pretty much it.
472271
Power source is an internal Li-Ion battery that is recharged when the unit is plugged into the computer USB port
282169
you can use a battery or a transformer or the low-voltage output terminals of a circuit board -- basically any source that provides AC or DC in the specified range.
620781
What does that do? I thought they bith be an independent sources, solar power is solar power amd doesnt need batterries and vise versa
2117296
I have no idea. It's a usb power source. I have used it to charge my iphone and my bike lights. It works really well. ;. I have used it to charge my iphone and my bike lights.
183096
It is powered by usb through your computer. No other power supply is needed.
452027
It is powered by the phone line, no external power supply. The old fashioned basic type!
333862
No external power source needed. Just simply plug in the 3.0 USB to the PC and you are set. :)
2202223
It's bus powered, it draws all the power it needs from the usb port on your pc.
1061613
There are 2 power sources. You can either plug in to USB or the wall for it to work.
1379506
The power source is 3 AA batteries. No AC plug. Don't bother buying it, tho - it was a piece of garbage. not enough air flow to actually play. we used it once and were done.
247429
i havent used it yet.i bought it at the end of the season.if i remember its only power source is external/boat battery.i only took it out of the box to make shure it would power up and work.
2237836
It's powered by the USB cable it comes with. I'm happy with this hard drive. It has an extra usb power cable if main usb output is not giving it enough power
2790
The "Load" side is wired to the device to be powered, and the "Source" side is wired to the power source, usually a battery. Make sure to adhere to the color coding, red for positive, black for negative.
39133
Power source is a USB that only works if you are on the computer, the earplug port is an odd size and hard to replace and kind of high, The recording for the voice is not very good on playback. It worked for 3 weeks of listening and stopped, I gave a second one to my nine year old since it did not work well. hope this helps!
1428440
My impression is that NO, this is a power source. It is used when one has a DC powered appliance and wants to use the appliance with AC power.
976954
Power comes from the supplied power cord. They are not super quiet but seem to be slightly less noisy than a regular fan
1667704
Both: primary power is from the outlet, but there is a back-up wafer battery, a 2026, I think.