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Geely's Megawatt Battery Warranty Bump Lands as Data Centres Stay Silent on Power

Geely Auto Group has extended the warranty on its new Ultra Short Blade Battery to eight years or 200,000 km (124,000 miles), up from 150,000 km, after claiming the pack can charge at nearly 1,100 kilowatts. InsideEVs reported the details on 30 September.

CarsAnalysisPeter LindqvistPublished: 30 September 20263 min readSources 5
Geely's Megawatt Battery Warranty Bump Lands as Data Centres Stay Silent on Power

The Chinese automaker says the pack, launched alongside a 2.2 megawatt charger in Ningbo, can take a Lynk & Co 10 from 10 to 97 percent in 8 minutes and 40 seconds. That is comfortably faster than the fastest US EVs, which InsideEVs notes peak at 400 kilowatts, and ahead of the upcoming Mercedes-AMG GT at 600 kW.

Geely is not pretending that speed is free. Jerry Gan, the group's CEO, said the company does not advocate fast charging at the expense of lifespan. Ren Xiangfei, its chief engineering scientist, described changes to cell size, cathode and anode structure, manufacturing and an AI-powered charger management system.

Smaller cells, 395 mm and 370 mm against a claimed industry norm of 960 mm, shorten the ion migration path and cut internal resistance.

The warranty is the claim worth checking

A warranty extension is a cost the company books, not a marketing line. Geely's move follows a year in which Chinese firms pushed past the 1,000 kW mark for passenger cars while Western operators are still rolling out 750 kW hardware. BNEF put global sales of medium- and heavy-duty electric trucks at a record 158,000 in the first half of 2026, up 75 percent year on year, with more than nine in ten going to China.

Charging speed and battery health pull in opposite directions, and nobody has published long-run field data on packs cycled at megawatt rates. InsideEVs reported on 30 September that Geely attributes degradation to two causes, lithium plating and extreme temperatures, and says megawatt speeds account for 60 percent of the heat generated inside the battery. The rest comes from electrochemical reactions and what Geely calls entropic heat.

Every fast-charging promise adds load somewhere on a grid.

Power demand meets disclosure problems

In the Netherlands, data centres used 5.1 billion kilowatt-hours in 2024, 4.6 percent of national consumption and close to double the figure five years earlier, according to Statistics Netherlands. Grid operator TenneT projects 10 to 15 percent by 2030. NL Times reported on 30 September that less than a quarter of larger Dutch data centres publish electricity or drinking water figures, with the Netherlands Enterprise Agency holding data on just 104 of 186 sites over 500 kW.

Texas shows the other end of the same problem. Inside Climate News reported on 30 September that administrative law judges recommended approval of El Paso Electric's 366 MW gas plant for Meta's $10 billion, 1-gigawatt data centre only if ratepayers are shielded from capital and operating costs, finding the utility failed to consider alternatives. The estimated cost of the McCloud facility is $499 million, using 813 modular generators from Enchanted Rock at 450 kW each.

The chemistry side is moving too, if more slowly. The BBC reported on 29 September that San Diego-based Unigrid has shipped its first 100 sodium-ion home batteries, a nine kilowatt-hour unit priced at roughly $100 per kWh against $81 per kWh for LFP in December. Prof Dame Clare Grey of Cambridge flagged that chromium-3 in Unigrid's cathode can form toxic chromium-6 at high states of charge, while Warwick's Ivana Hasa said voltage control can mitigate that. Unigrid CEO Darren Tan called the toxicity concerns overblown and said third-party tests could not produce chromium-6.

None of this settles whether megawatt charging is compatible with an eight-year battery. Geely's warranty is the strongest public commitment so far, and it is a commercial bet rather than a laboratory result.

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Sources

5
  1. 01How Geely's New Battery Handles A Megawatt Of Charging Power Without Crazy DegradationEN
  2. 02Most data centers refusing to say how much water, electricity they useEN
  3. 03Texas Electric Utility Only Considered Gas to Power $10 Billion Meta Data CenterEN
  4. 04The start-ups hoping to return battery making to the USEN
  5. 05The Electric Trucking Market's Record Rise: Three Things to KnowEN

All figures and quotations in this text come from the sources listed below.

Content prepared by the editorial team with AI assistance.

Peter Lindqvist

Peter Lindqvist

Sport, cars and travel

Peter Lindqvist covers sport, cars and travel for FLASH24, working from race results, manufacturer data and timetables rather than press releases. He checks entry lists and homologation papers against official series documents, and recalculates lap times, range figures and fare totals before anything goes out. He talks to team mechanics, rental desk staff and rail operators, and marks the Le Mans week and the winter timetable change in his calendar months ahead. Privately he drives an electric car, does his own garage repairs and plans rail routes across Europe, which is where most of his story tips start. He does not publish a number he cannot trace to a primary source.

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