Arduino BT and 9 volt battery

Is it OK to power an Arduino BT with a 9 volt battery?

Thanks

No. Or at least, I don't think so, since it's only supposed to take 1.2 to 5.5 volts.

I would not go higher than 5V on the DC power input, unless you are trying to make a one-time smoke machine.

D

Fortunately I have been using AA batteries but I figured it wouldn't hurt to ask. Thanks for your help.