Good on this little EVOLTA-powered robot for climbing a 1,500-ft. Grand Canyon cliff on Saturday.

The 4.5-ounce, 6.7-inch robo climber was scaling the cliff as a publicity stunt/demonstration for the Panasonic EVOLTA battery, which according to the Guinness Book of World Records is longest-lasting of its kind. The robot was powered by a pair of EVOLTA batteries, and used a tiny rope to ascend the cliff face. From the sounds of things this robot needed every ounce of power its batteries could provide: after 6 hours and 45 minutes the robot climber finally reached the top.