Originally Posted by Teamfour
On a WSM I don't think you need one. Having said that, I would definitely get the DX2 over the Party if buying a Guru. And don't let the electricity scare you off. I use two 6 volt lantern batteries wired in series to power my DX2 when no power is available. I have about 16 hours of cook time on the batteries and they are still going strong.
Have heard this works well. How do ya connect the batteries to the Guru.