{"id":2235,"date":"2026-09-25T01:11:00","date_gmt":"2026-09-24T16:11:00","guid":{"rendered":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-09-25-raibo2-marathon-en\/"},"modified":"2026-09-25T01:11:00","modified_gmt":"2026-09-24T16:11:00","slug":"2026-09-25-raibo2-marathon-en","status":"publish","type":"briefing","link":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-09-25-raibo2-marathon-en\/","title":{"rendered":"A quadruped robot finished 42.195 km on one battery"},"content":{"rendered":"

2026-09-25 01:11 KST<\/strong><\/p>\n

It averaged 2.64 m\/s over a course with 286 m of elevation change and slippery sections.<\/p>\n

It used 1,280 Wh of a 2,016 Wh battery, about 63%; the authors estimate roughly 25 km of range remained under comparable conditions.<\/p>\n

Why legs consume energy<\/h2>\n

Unlike wheels, legs continually support body weight and lose energy at each contact. The team combined light legs, optimized motor electronics and learned gait rules.<\/p>\n

What the efficiency means<\/h2>\n

Its normalized cost of transport was 0.25, below the cited human-running value of 0.37. This engineering ratio is not a direct comparison of calories or race speed.<\/p>\n

\"A
This AI-generated image explains the topic; it is not a photograph of an actual event, observation or field site.<\/figcaption><\/figure>\n

Possible use<\/h2>\n

Longer range could help mountain or disaster robots. Payloads, harsher terrain, weather and communications still require separate tests.<\/p>\n

What comes next<\/h2>\n

Repeat runs, battery ageing, repairs and autonomous decisions must be measured. This remains one platform in one verified event.<\/p>\n

Primary source and independent checks<\/h2>\n

Primary source: Nature paper<\/a><\/p>\n

Institutional explanation: Nature Portfolio release<\/a><\/p>\n

Independent check: KAIST event record<\/a><\/p>\n

Read in other languages<\/h2>\n

\ud55c\uad6d\uc5b4<\/a> \u00b7 English<\/a> \u00b7 Espa\u00f1ol<\/a> \u00b7 \u65e5\u672c\u8a9e<\/a> \u00b7 Ti\u1ebfng Vi\u1ec7t<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

RAIBO2 finished an official marathon in 4:19:52, and a 2026 paper analyses its efficiency. The run occurred in 2024; it does not show the robot is faster than people or ready for rescue deployment.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-2235","briefing","type-briefing","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing\/2235","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing"}],"about":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/types\/briefing"}],"wp:attachment":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=2235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}