Xin Lang Cai Jing·2026-03-10 23:36Core Viewpoint - NIO's founder Li Bin expressed concerns about the long-term health of power batteries due to frequent use of ultra-fast charging technology, suggesting that while both ultra-fast charging and battery swapping serve different energy replenishment needs, they do not fundamentally contradict each other [1][3]. Group 1: Ultra-Fast Charging vs. Battery Swapping - Li Bin stated that while ultra-fast charging technology is advancing, excessive use can negatively impact battery lifespan, health, and long-term safety [3]. - Battery swapping has a systematic advantage in ensuring battery longevity compared to ultra-fast charging [3]. - NIO's battery swapping process takes approximately 5-6 minutes, with the fastest swap completed in 2 minutes and 24 seconds [7]. Group 2: Charging Speed Comparisons - BYD reported that its flash charging can increase battery levels from 10% to 70% in 5 minutes, and from 10% to 97% in 9 minutes, even in low temperatures [5]. - The discussion highlights the rapid advancements in flash charging technology, raising questions about the necessity of battery swapping [7]. - BYD's chairman explained that their "storage and charging integrated system" prevents additional strain on the power grid while enabling high-power charging [7]. Group 3: Industry Perspectives - Both NIO and BYD view ultra-fast charging and battery swapping as different approaches to address the slow energy replenishment of electric vehicles [9]. - Concerns about whether fast charging damages batteries are acknowledged, with historical context from the mobile phone industry suggesting that such concerns may be overstated [11]. - The industry anticipates that the long-term effects of flash charging on automotive batteries will become clearer in the future [11].