Does this item have it's own power source? Or does it need to draw power from the object it's connected to?
1408944
Draws external power. One of these models has a micro usb port to power it. I usually just plug it into the cisco device im using it on. It also comes with a pair of wire leads that you could use to fabricate a battery pack.Another option would be to use a usb powered cell phone charger battery pack.I love mine.
1408945
The ítem has three ways to drive power into.1. You can supply power by the micro-usb connector on it's side, 2- You can plug an includded mini-adaptor with a tiny cable wich comes labeled as: Battery (3-5 VDC). Owners manual says you can connect a battery to this side, but doesn't specifies about duration.3. Device also has a sliding switch that allows you to select between USB/battery source port or driving power by DB9-Pin9 (5V).Hope this helps.
1408946
Draws external power. One of these models has a micro usb port to power it. I usually just plug it into the cisco device im using it on. It also comes with a pair of wire leads that you could use to fabricate a battery pack. Another option would be to use a usb powered cell phone charger battery pack. I love mine.
1269580
The unit will charge or discharge depending on what it is connected to. If it is connected to a device requiring power, then the batteries supply power to that device. If it is connected to a power source, it will draw power from the source to recharge the batteries (I'm assuming you are using rechargable batteries). For example, I have a portable MP3 player / remote speaker which has its own battery, but its battery lasts only an hour. Using the PortaPower, it will run all night. The MP3 player is not a power source itself despite having its own battery.
957579
Normally no usb power source is needed when chromecast is powered by AC power supply. Then the item will be able to draw power from chromecast.
691695
U don't. It is supposed to have its own power supply which connects to an electrical outlet.
15121
It's got a power supply with it. I have that plugged into my power strip...
2107253
It doesn't, I'm almost 100% sure of it. It gets power via either AA batteries or a USB connection. FYI: My fan stopped working after using it for just one week. I can't figure out what's wrong. Hugely disappointing since it's so quiet and has a nice appearance.
1891748
Comes with its own power supply. It has a 110 AC household plug. The cord is a little short but I had no problems making it work.
1044710
there is no power source. This is a vise that can hold your work or it has an adaptor that it hold your Dremel tool, which is a good feature. It is not heavy duty, it is for light work. I use it to hold circuit boards and small light items. I like the adjustable positions and the size of the opening of the jaws.
10476
It does not provide power to any device. It is powered but does not provide power (other than through the USB ports)
1551869
No phantom power is required; it only requires a 9v battery (in which one is supplied). However, the unit arrived defective and there was a short in the power button, so I had to keep taking the battery out and putting it back in again in order for it to continue to work. I ended up returning it. I'm not sure if this was a design flaw or we just received a bad unit. We hope this was helpful.
1239877
This item does not require a power source nor does it come with a plug. Thank you for your interest in this item and for your question.
1819489
No, it plugs in. When I first saw it, I assumed it was battery-powered (and weak), or even manual. But it plugs into a standard outlet, and is plenty powerful.
1661318
It draws power from the pc, so it doesn't need one. Had mine for almost a month and I'm really pleased with it.
2004737
This piece of equipment has no internal power source so it requires the wall plug. There are self contained battery jumpers on the market which is what you want, however they don't recharge batteries on their own. Different needs, different equipment.
2218931
No, it is powered by a cable which is included. It plugs into a standard outlet.
685899
The device uses an external power supply. If you have needs other than 110V, you'll have to supply you own.
1611276
no it does not, it is a Direct Current power source, and would not work properly with any standartd USB or in house items