BYD extends Blade Battery warranty to eight years or 250,000km

BYD is extending the warranty of its Blade Batteries to eight years or 250,000km, which will apply to all new-car customers and existing BYD owners in Ireland and across Europe.

The Blade Battery technology is at the heart of all BYD’s fully-electric and ‘Super Hybrid’ models. These cars already feature a basic-coverage warranty of six years or 150,000km, along with a 12-year, unlimited-mileage anti-perforation warranty and cover for the electric drive unit of eight years or 150,000km.

Now BYD has increased the mileage limit on the specific warranty for the Blade Battery to 250,000km, while retaining the existing duration of cover at eight years and a guaranteed minimum State of Health (SOH) of 70 per cent.

The Blade Battery is made using lithium iron phosphate chemistry (LFP), eliminating reliance on materials such as nickel and cobalt and reducing environmental impact.

After intensive load and endurance testing, the Blade Battery has been proven to exceed 3,000 charge and discharge cycles, with a service life equivalent to 1.2 million kilometres.

It has delivered outstanding results in extreme safety evaluations, such as the nail-penetration test, during which the surface temperature remains below 60°C – 10 times lower than that of a conventional battery.

It has also demonstrated exceptional resistance in overcharge tests of up to 260 per cent and oven tests at temperatures above 300°C, as well as in crushing tests, saltwater-immersion tests and drop tests from significant heights, far exceeding international safety standards.

The blade-shaped design allows each cell to function as a transverse structural element, increasing overall torsional rigidity and providing exceptional protection against impacts and deformation.

Each compact and lightweight cell is integrated into a module that reduces occupied volume by 50 per cent compared with traditional batteries, enabling designers to maximise interior space and optimise vehicle packaging.