20 February 2026

Extended distance warranty on BYD batteries

BYD Sealion 7.

BYD has extended the warranty on its Blade batteries to 250,000km or eight years for both existing and new vehicles in Ireland, writes Brian Byrne. The warranty retains its promise of a minimum end State of Health (SOH) of 70 per cent. 

The battery technology is central to BYD’s electric and Super Hybrid models, using lithium iron phosphate chemistry and a unique blade-shaped design. 

The system has passed extensive testing, exceeding 3,000 charge cycles and offering a service life of 1.2 million km.