USE LEGO Powerfunction BOX to power Arduino UNO

Hello everyone,
I would like to use the LEGO POWER Function Box, to POWER ARDUINO UNO
Is this possible?

You would probably get some meaningful help if you provided details of such a box, or at least provide a link to its specs.

It this one:

Here are the specs
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=403540

I have this Robot kit:

But its quality was so extremly bad.

So I got:

I have the arduino engineerng kit.

MKR1000 and the motor shield. ( it comes with a accu pack)

BUT

I would like to have only one power power box. Well it would be grreat.