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Battery-Powered Robot Climbs Rope for 7 Hours in Grand Canyon

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Active Member
Dec 19, 2002
Boy, it sure would have been nice for to have Evolta along the last time I hiked the Grand Canyon. :)

Somehow, 20% longer battery life (assuming that's true) just doesn't seem very earthshaking. At some point, you can get way more than a 20% increase for the money by just buying eight cheaper alkaline batteries.
May 22, 2008
Just coincidentally, the batteries are mounted like a 'backpack' - the same as a certain pink bunny I've seen on TV. Huh.
Sep 19, 2002
Toronto, Ontario
So the cells managed to lift themselves and the 5 ounce toy at a snail's pace of a bit over four feet per minute. And the seven hour discharge rate certainly wasn't stressing them.

So what does this tell us about how they handle a typical load (like a flashlight)? Not much.
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