Home Appliances Design Winbot WA3 Cordless Window Cleaning Robot by Li Xiaowen Winbot WA3 is a cordless smart window cleaning robot. Equipped with a 3000 ma battery, the Winbot WA3 can operate for 50 mins. The robot’s built-in gravity acceleration sensor, coupled with a post-optimized algorithm allows it to intelligently plan a “N” or “Z” shaped path. Users can also select a “N+Z” deep cleaning mode. Its back-up power system allows it to stay on the window for extra 30 mins. We’ve designed a new safety suction pod and a tether to further ensure the safety of Winbot WA3.