[?] Blade Battery Cycle Life at 4C Sustained Charge Rate

BYD publishes 3,000+ cycle life for the Blade Battery at standard 1C charge conditions. For flash charging use cases, the relevant charge rate is 4-6C. Peer-reviewed literature (Journal of Power Sources, 2018-2024) consistently shows LFP capacity degradation accelerates at 3C or higher, especially below 20 degrees C. The Arrhenius equation governs lithium-ion diffusion in the graphite anode — at 0 degrees C, diffusion is 5-10x slower than at 25 degrees C. BYD has not published — and appears commercially motivated not to publish — any independent or internal cycle life data at sustained 4C charging. What would resolve it: Independent testing by SGS, TUV, or CATARC. Could be published within 12 months if commissioned. Until then, fleet procurement models should include a degradation sensitivity range of 80-100% of standard cycle life.