Cordless Robotic Cleaner

[cgc2]

Sounds like a Maytronics/Dolphin cleaner. There may be others but that is the only one I am aware of.
I have no feedback good or bad regarding the cordless model. It is on the upper end of the pricing spectrum.

[Cheese]

http://www.smartpool.com/website/rpc/dl2030.htm I wouldn't think it would be as powerful running off a battery, but who knows maybe it is...