Or, how to make a battery pack for your fonera.
You’ll need a multimeter, a 2.5mm by 5.5mm barrel plug (available on Amazon or better yet Radio Shack) and a 4 AA (or AAA, they supply the same voltage level). I also used some velcro so that the battery pack would be able to attach to the top of the fonera.
The outside of the barrel plug is negative and the inside is positive. Double check yours with the multimeter.
I also swapped the antenna for the bigger one from my other router.
Now, I can turn it on and leave it in my backpack to be even less suspicious 😀