Wybot S2 Solar Vision review: Same bot, new battery-charging option

A solar-powered pool robot sounds like a perfect cleaning solution, but it turns out the sun can provide only so much juice in a day. The dream of every swimming pool owner is that some device will come along that will clean the pool without requiring much--or any--interaction. Pump-powered robots are obtrusive and unsightly thanks to their snaking cables. Battery-powered robots must be manually retrieved after a few hours, cleaned out, and recharged. The holy grail remains elusive. With its S2 Solar Vision, Wybot takes at least one baby step in the right direction, outfitting a modified version of its existing Wybot S2 robot with a solar-powered docking and charging station.