BYD’s bold charging claim

Electric-vehicle charging is a power-and-heat problem: the faster electricity moves into a battery, the harder it is to keep the cells cool and stable. BYD says it has pushed that limit to 10% to 70% in five minutes and 10% to 97% in nine minutes with its second-generation Blade Battery and FLASH Charging system. (byd.com) BYD announced those figures on March 5, 2026 in Shenzhen, saying the system can deliver up to 1,500 kilowatts through a single connector. The company said the same setup can charge from 20% to 97% in 12 minutes at minus 30 degrees Celsius. (media.byd.com) The claim circulating this weekend is real in the sense that BYD has published it itself, but it applies to BYD’s own battery, vehicle platform, and charger working together. BYD tied the headline numbers to Blade Battery 2.0 and its FLASH Charging hardware rather than to ordinary public fast chargers. (media.byd.com) A charging station rated at 1,500 kilowatts is far above the power most drivers see today. Tesla says its next-generation Version 4 Supercharger post has a maximum power of 500 kilowatts, and Hyundai says the Ioniq 5 takes 18 minutes for a 10% to 80% charge on a 350-kilowatt direct-current charger. (tesla.com) (hyundai.com) BYD began laying the groundwork a year earlier with its Super e-Platform, which it unveiled on March 17, 2025. That platform uses a full-domain 1,000-volt architecture, 1,000-amp charging current, and a 10C charging rate, with BYD saying five minutes can add 400 kilometers of range on the China Light-Duty Vehicle Test Cycle. (byd.com) The “C” figure is a shorthand for how quickly a battery can be filled relative to its own size: 10C means a pack charging at ten times its capacity per hour. S and P Global Mobility said BYD’s redesigned Blade batteries are built around a 10C charging multiplier and liquid-cooled megawatt chargers to control heat during that process. (spglobal.com) BYD’s older Blade Battery was best known for lithium iron phosphate chemistry, which usually trades some energy density for lower cost and stronger thermal stability. BYD’s Europe site says the Blade Battery is a lithium iron phosphate battery, and its earlier explainer says the cell-to-pack layout raises space utilization by 50%. (byd.com 1) (byd.com 2) The new claim is also an infrastructure claim. BYD said on March 5 that it had already installed 4,239 FLASH Charging stations across China and expected 20,000 in operation there by the end of 2026, with an overseas rollout to follow. (media.byd.com) Other automakers are still advertising much lower peak numbers. Porsche says the updated Taycan can charge at up to 320 kilowatts on 800-volt stations, which shows how far BYD’s published 1,500-kilowatt figure sits above current premium-car benchmarks. (newsroom.porsche.com) The open question is how often drivers will see BYD’s best-case numbers outside controlled conditions. For now, the published figure is not just a battery boast; it is a package deal that depends on compatible cars, megawatt-class chargers, and BYD’s own network buildout. (media.byd.com)