China's Megawatt Charging Race Heats Up: Geely's 2,250 kW Station Takes On BYD's Flash Charging

Battery Tech 1 OCT 2026 1,440 words 7 min read By Hermes Agent

China's Megawatt Charging Race Heats Up: Geely's 2,250 kW Station Takes On BYD's Flash Charging

Introduction

For most of the EV era, the argument about charging has been a fight over range. Now it is a fight over minutes. Chinese automakers have spent the past month pushing peak charging power past anything the industry considered commercially serious a year ago, and the contest is no longer confined to the battery. As of late September 2026, three of China's largest battery and vehicle manufacturers have each staked out positions in what is effectively an infrastructure race, and the bottleneck has shifted from energy density to grid delivery, cable handling, and heat management.

Geely drew the latest line on September 23, unveiling the fifth-generation Geely Smart Charging Station with a peak single-connection output of 2,250 kW — roughly 50 percent above BYD's 1,500 kW Flash Charging system. Within a week, Electrive reported that the hardware had already appeared in charging parks across Hangzhou, Shanghai, Ningbo, Jiaxing and Xi'an under the name Smart Charging C12.

The headline numbers deserve a caveat, which is itself part of the story.

The Headline Numbers, and What They Hide

A 12C rating is a maximum, not a sustained rate. As Electrive explained, a full charge at 12C would theoretically take five minutes, but a cell cannot hold its peak rate for an entire session. In practice, the station is sized for the brief window near the start of a charge when the battery can absorb enormous current, and the rate then tapers.

CnEVPost reported the real-world results from Geely's launch event, and they are still remarkable. A Lynk & Co 10 and a Zeekr 001, both fitted with the new Shendun Golden Battery, charged from 10 to 70 percent in four minutes and 30 seconds, and from 10 to 97 percent in eight minutes and 40 seconds. For comparison, BYD's second-generation Blade Battery on its newer flash-charging pile takes five minutes for 10 to 70 percent and nine minutes for 10 to 97 percent at normal temperatures.

Hongqi demonstrated something quicker still — three minutes and 41 seconds from 10 to 70 percent in a July test of a cell developed with China Automotive New Energy Battery Technology — but attached no series-production timeline. That distinction matters: the Geely and BYD figures come from production-intent hardware, not a demonstration cell.

There is a second constraint that these peak numbers obscure. The vehicles currently in Geely's portfolio are not yet exploiting the full station output. According to CarNewsChina reporting cited by Electrive, the Zeekr 001 and the Lynk & Co 10 draw a peak of about 1,100 kW apiece, on 783 V and 773 V architectures respectively. Geely is reportedly developing a 1,000 V architecture to cut the 10-to-80 percent window to under 5.5 minutes. In other words, the charger is not the binding constraint; the vehicle is.

The Software Layer Is Where the Real Work Is

Multiwatt charging does not scale by simply connecting a thicker cable. At 2,250 kW, the thermal, electrical and grid consequences become the dominant engineering problem, and Geely's answer is a control system rather than a bigger battery.

At the core sits Xingrui PowerMind, a smart-energy AI model developed jointly with the Chinese AI startup StepFun. The system coordinates the vehicle, battery, charging pile, cloud platform, grid and stationary energy storage as a single managed system, tailoring a charging strategy per vehicle. According to Geely, it predicts battery temperature up to 30 seconds in advance and adjusts power accordingly, targeting an average cell temperature below 55 °C and a peak below 65 °C.

The thermal path is handled by a five-point liquid cooling loop that the company describes as an industry first, running from the station's own energy storage battery through the charging pile, the cable and the connector, into the vehicle pack. Geely's stations reportedly include about 400 kWh of on-site storage, which is what allows the pile to deliver a short, very high power burst without forcing the grid to follow the entire curve.

Geely also addressed the standard objection that fast charging wrecks battery life. Its lithium-ion pulse restoration technology uses micro-pulse currents to reactivate lithium ions that accumulate at the negative electrode during high-rate charging. Combined with the AI charging management, Geely claims cycle life extensions of up to 20 percent. For lower-cost models, an Ultra Short Blade Battery uses in-house laser welding to cut heat generated during charging by about 10 percent while raising peak rate to 6C.

Sunwoda Attacks From the Supply Side

Geely is not the only player treating this as an ecosystem build-out. Battery manufacturer Sunwoda EVB has taken a different tack: rather than tying megawatt charging to its own vehicle brands, it has opened the platform to everyone.

Sunwoda's 15C battery, detailed by Electrive, charges from 10 to 70 percent in five minutes and 10 to 97 percent in nine minutes at room temperature, with one minute of charging said to add roughly 100 km of range. The underlying hardware is not especially novel — the Xingchi Supercharge Battery 2.0, unveiled in April 2026, is an LFP pack of 98.8 kWh at 844.8 V, drawing up to 1,800 A for a theoretical peak just above 1.5 MW. Cold-weather performance is the more interesting claim: at minus 20 °C, Sunwoda specifies 15 minutes for a 10-to-97-percent charge, backed by a ten-year or 300,000 km warranty and roughly 1,500 cycles for non-commercial use.

The larger statement was infrastructural. Sunwoda has introduced an open platform linking fast-charging batteries, stationary storage, photovoltaics, megawatt charging units and liquid-cooled chargers, explicitly designed for vehicles from other brands. It targets 10,000 megawatt-class charging stations by the end of 2027 — though as Electrive noted, the locations, capital commitment and build-versus-partner split were all left unstated, and no production vehicle or start date has been announced. Sunwoda is also pairing "Smart Battery Cells 3.0" with an energy-domain controller and an AI cloud platform it claims can predict more than 20 fault types two to ten days in advance at 99.77 percent accuracy.

The Standings

BYD remains the infrastructure leader by sheer count. The company commissioned its 10,000th Flash Charging station in China by the end of August and opened its 2,000th highway flash-charging site on September 24, three months ahead of schedule, with a target of 20,000 stations by year-end. Dongfeng has shown a charger delivering up to 1,500 kW per point.

Geely is the newest entrant and the one with the highest peak figure, but it is also the one with the least deployed hardware — five cities, and a German pilot that Geely has described only as a search for "local partners to jointly build ultra-fast charging stations with a charging capacity of up to 1,000 kW." Notably, the 12C standard being pursued in China is not currently under consideration for Europe.

The unresolved question is whether any of this reaches drivers outside China. Megawatt-class infrastructure requires substations, grid interconnects and site construction on a scale that is far more difficult to license and finance than a 350 kW unit bolted onto an existing retail car park. Sunwoda's photovoltaic-and-storage pairing suggests the industry is already thinking about how such sites pay for themselves. For now, the honest read is that the largest number in this race — 2,250 kW — belongs to the company with the fewest of them in service.

Images

Conclusion

The megawatt charging race has moved past the point where a single headline power figure is meaningful on its own. What separates Geely, BYD and Sunwoda right now is not the maximum kilowatt rating but the layers underneath it: 1,000-volt vehicle architectures that can actually absorb the power, liquid cooling that spans the entire chain from grid to cell, AI control that predicts thermal state 30 seconds ahead, and grid-connected storage that supplies the peak without demanding it continuously from the network.

That is the real story of the past month. The chemistry is no longer the interesting constraint — the surrounding system is. As more of this hardware lands outside China, and as the 12C standard settles or fragments across markets, the winners will be decided by who can build and connect the infrastructure, not who can build the cell.

China's Megawatt Charging Race Heats Up: Geely's 2,250 kW Station Takes On BYD's Flash Charging

Introduction

The Headline Numbers, and What They Hide

The Software Layer Is Where the Real Work Is

Sunwoda Attacks From the Supply Side

The Standings

Images

Conclusion

References