BYD Flash Charging

The BYD Flash Charging, stylized as FLASH Charging, is an electric vehicle fast charging network consisting of high-power direct current (DC) system developed by the Chinese manufacturer BYD Company.

Introduced on 5 March 2026 during a conference in Shenzhen, China, the system has a maximum power delivery of 1,500 kW that is supported by an energy storage system to provide rapid charging times for electric vehicles without straining the local power grid. On a supported vehicle, system can charge the battery from a 10% to 70% state of charge in five minutes, and from 10% to 97% in nine minutes. In cold weather testing at -30°C, the 10% to 97% charging duration took 12 minutes, adding only three minutes to the standard charging time.

While newer BYD models are specifically optimized for the charging system, the charging network is open to electric vehicles from any brand equipped with a 1,000V electrical architecture. BYD aims to build 20,000 Flash Charging stations in China by the end of 2026, as well as 6,000 stations outside China starting from Europe in mid-2026.[1][2]

Background

The 2026 system is the successor to BYD’s first-generation Megawatt charging technology, which was introduced in March 2025.

Technical specifications

The technology operates on a 1,000V high-voltage architecture, delivering a peak current of 1,500 amperes to support a 10C charging rate. When paired with BYD's second-generation Blade Battery, the system charges a vehicle from a 10% to 70% state of charge in five minutes, and from 10% to 97% in nine minutes. The decision to cap the rapid charging metric at 97% capacity allows the vehicle's kinetic energy recovery system to function immediately through braking, which lowers overall energy consumption.

To maintain charging speeds in extreme climates, the system employs an "All-Temperature Intelligent Thermal Management System" alongside a specialized electrolyte designed to maintain high conductivity. This regulates internal temperatures and ensures uniform heat dissipation during high-power intake. In cold weather testing at -30°C, the system can charge a battery from 20% to 97% in 12 minutes, which is a three-minute increase compared to standard room temperature operations.[5]

Hardware

The charging hardware utilizes a sliding-rail suspended T-type design. The hardware includes a more compact charging gun with dedicated waterproof protection. The liquid-cooled charging cable is suspended from an overhead track, preventing the cable from touching the ground and allowing the user to move the 2 kg "zero-gravity" charging gun laterally. This configuration permits access to charging ports on any side of the vehicle without requiring the driver to reposition the car. To maximize station availability and reduce gridlock, the infrastructure incorporates an automated parking and idle fee system for vehicles that occupy the space for extended periods after charging is complete.[6]

Each charging pile is paired with an integrated energy storage system (ESS) to prevent the 1,500 kW output from overloading local municipal power grids. The standard ESS configuration includes two 185 kWh storage cabinets, providing a total buffer of 370 kWh per terminal. The ESS charges from the grid during off-peak hours and discharges rapidly during vehicle charging sessions. This localized power amplification maintains a consistent 1,500 kW output even when multiple vehicles charge simultaneously, while reducing station construction costs by avoiding the need for municipal power grid expansion.[7]

Second-generation BYD Blade battery

The charging system relies on BYD's second-generation Blade battery, which introduces modifications to the internal chemistry and physical structure of the original lithium iron phosphate design. The battery utilizes a full-link ion architecture named FlashPass.[8] This includes a cathode designed with multi-level particle size directional construction for denser packing, an electrolyte optimized by artificial intelligence algorithms for higher conductivity, and an anode featuring penetrated migration channels for faster ion insertion.

These modifications yield a 5% increase in energy density compared to the first generation, supporting maximum ranges of over 1,000 kilometers under CLTC testing conditions, as demonstrated by the Denza Z9GT.

Safety and durability testing parameters were expanded for this iteration. The battery passed nail penetration tests while actively charging after completing 500 rapid-charge cycles. Additional testing included bottom impacts at ten times the force required by national standards and thermal diffusion tests involving four simultaneous cell short circuits, which resulted in no fires or explosions.

Based on these physical changes, BYD adjusted the degradation standards for the battery's warranty. The lifetime warranty for the battery cells remains, while the capacity retention threshold was raised by 2.5% across all warranty periods. The guaranteed capacity retention is set at 87.5% at two years or 50,000 kilometers, 77.5% at six years or 150,000 kilometers, and 72.5% at eight years or 150,000 kilometers. If the capacity drops below these thresholds within the specified timeframes, the manufacturer replaces the battery.

established	March 5, 2026
type	Electric vehicle charging network
region served	China Europe
owner	BYD Company

Background

Technical specifications

Hardware

Second-generation BYD Blade battery

Economics

Rollout

In China

Outside China

Compatibility

References