Step3: Get that Case Open

There are claims that you can just pop the battery lid after removing clips and doing some prying on the irobot batteries. I think there is a little more to this. The Dirt Dog in particular seemed to have a well glued on battery lid. It was no match for a dremmel. Be careful to not cut deep. Good ventilation is useful here as the plastic smells terrible when you are cutting/burning it off with the dremmel.

Done