This speed-climbing technique is known as running a PDL (or Pakistani Death Loop, purportedly named after an unfortunate South Asian climber who took a huge fall off the Nose attempting to break the record).
With an average speed of 70kph, it will spend the day climbing as its lithium-polymer cells (which account for about a quarter of its 1, 600kg weight) are recharged.
The smooth and immediate low-speed power delivery also makes the Electric Defender adept at climbing obstacles without having to spin its wheels unnecessarily, which can damage the environment.
Parkour athletes - also known as free runners - cross urban landscapes by vaulting, leaping and climbing, using the skills of strength, balance, co-ordination and speed.