Rechargable Battery Power Supply?

[p0rtal]

Was curious if there are any rechargable battery power supplies out there, specifically I need a 12v 1000mah battery pack that can power a device while not plugged into the wall. Something I can charge and take with me to power other electronics devices that have the same input as my mobile pc

 

[alvine]

look into UPS (uninterruptable power supply)

 

[Onus]

There are. In fact, I think Tom's did a roundup on a few of them some years ago. Sorry I don't have any links, but if you search on terms like "auxiliary battery" or "secondary battery" you might find some specific products.
Here's an example link page: http/www.google.com/#hl=en&sclient=psy-ab&q=Auxiliary+laptop+battery&oq=Auxiliary+laptop+battery&aq=f&aqi=g-c1g-K1g-q1&aql=1&gs_l=hp.3..0i7j0i30j0i22.74901.76116.3.76723.7.7.0.0.0.1.190.743.5j2.7.0.erf1.1.0.0.tHSIGbIEFao&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=b001bd3a40637c26&biw=1280&bih=834

And, here's a specific product. Note the variety of voltages available, plus 5V USB: http/www.laptopbattery.net/universalbatteries.html