Digital Trends magazine has this piece on an robotic electric lawnmower developed by Bosch capable of cutting up to 1,000 square meters on a single charge -- best of all, it does this all by itself. Needless to say: I wants.
Using the provided wiring, the Indego owner must define the perimeter of the yard in order to help the electric lawn mower understand the boundaries of the property. The robotic lawn mower will automatically avoid obstacles in the path of the mower such as large rocks, lawn decorations, toys left out by kids and other small objects.
Bosch Indego on Charging PadThe mower can operate for twenty minutes before automatically returning to the charging pad and recharging the lithium-ion battery. After spending 90 minutes to recharge the battery, the mower returns to the process of cutting the grass. Using the charging pad as a navigation point, the mower returns to the exact spot that it stopped mowing and cuts the grass in straight lines to avoid missing any patches of grass.