Electronics Help Please--Power to a USB LED Strip

[leafrog]

Short Version:
I have one of these, an LED strip needing a USB power source, that I would like to put into part of a costume, powered by a battery type contraption. The package for the strip says "Power 6.48W 5V Voltage".

My initial searches for USB battery sources came up with things like this, portable charger packs. While the physical size of those would be ideal for my purposes, I don’t think they are meant to do what I want to do, and don't want to buy if it won't work.

So I ask of you geekish people (said with all love and respect), is there a simple solution to this? Is there a product I can purchase or something I can manufacture that will provide power to this LED strip, and be small enough to include in the construction?

Long Version:
I’m making my Halloween costume. Right now I'm calling it a Mage, but it may turn into Sorcerer or Wizard. It started out when I saw this awesome hat and decided to make one myself. I've also made a cloak and have an old pair of black pleather boots that I’m tricking out with fake fur and other accoutrements. I've made a decent magic wand out of a piece of bamboo that had a wisteria vine wrapped around it coming out of a handle that I carved and dipped in Plastidip (because why the hell not?). I chopped up an old dress and have been embroidering runes and other arcane marks around the neckline and hem, and have a pretty awesome collection of weird shit hanging from chains at the belt.

The help I’m looking for here is for the staff I will carry. I’m using the lights to build an infinity mirror that will be mounted at the top of a … stick/staff/something still to be determined. I’ve got the mirror part figured out and have extra materials leftover from a summer camp I did this year. This one will be a disc about 5 inches in diameter and only about a half in thick. I have a few things in mind for decorating the staff, but most of that gets finalized while I actually make. I plan to mount the remote control on the staff so I can turn it on and off and change colors surreptitiously. Hoping this will at least conjure up a "cool!" from the students!

[Random Precision]

You could probably use a portable USB phone charger to do the trick. LEDs will work with voltages from 3.6 to 6 VDC. Any type of battery or combination of batteries that will deliver that voltage will work, but the lithium batteries in the phone chargers work better with the type of load that an LED represents.

A little googling tells me that USB chargers like this are easy to find. You might want to experiment to see how long a charge will last with your light strip.

[Jaglavak]

The USB battery pack you linked to should work just fine. It puts out 2.3 A at 5 V and you only need 1 A.

[stormie]

I has no obscure knowledge but a great need for
PIIICTUUURES!
because it sounds very cool

[Wolf Larsen]

So let's call the power draw 7 watts. At 5 volts, this is 7/5 = 1.4 amps. The battery pack is 20,000 mAH which is 20,000 milii-amp hours or 20 Amp hours. So the pack should run the strip for 20/1.4 = 14ish hours. So you should be able to do a party or a work day on a charge.

[leafrog]

Awesome! Thank you Jag, Random, and Wolf (coincidentally the three people I considered shouting out to).

I wasn't sure about the output of the battery and the IRL person I had asked said something about maybe needing a capacitor to prevent imploding the universe or something.

I'll see if I know someone with a charger to test it out, but it looks like this will work.

Stormie, it will probably be a couple of weeks, but I'll post pics when everything is done. Lots of trimming out to do still.