Drawing on the luggage case modeling logic, the 5kW · h large-capacity battery core is packaged in a trolley-like shape. Round chamfers and smooth lines weaken the "heavy feeling of hard core" of outdoor equipment, which not only meets the storage requirements of outdoor scenes such as self-driving and camping (can be easily placed in the corners of the trunk and camp), but also transmits the use hint of "ready to go" through integrated modeling, allowing the power supply to change from "tool attribute" to "accompanying partner.