The e-bike standard quietly changed on 15 May 2026
There is no "new 2024 standard from January". There is a date in May, and it is mostly about fire.
What this is written from: Written from Commission Implementing Decision (EU) 2024/1329, the UK's statutory guidance on lithium-ion batteries for e-bikes (12 December 2024), Elsäkerhetsverket's charging advice, and Bosch's and ENGWE's own announcements, read on 29 September 2026. Not legal advice.
What actually happened
A claim goes round that from 1 January 2026 every e-bike must carry "EN 15194:2017+A1:2024". There is no such edition. The standard is EN 15194:2017+A1:2023, and the date that mattered was 15 May 2026: from then, only the amended version gives a manufacturer the presumption that the bike meets the safety requirements. The old 2017 text stopped counting.
The amendment is mostly about batteries: fire, explosion and temperature. For a buyer that translates into one useful question, which is also the easiest one to ask. Which edition does the declaration of conformity cite?
What to ask for
The documents a seller should be able to show for a complete e-bike.
| Declaration of conformity | Citing EN 15194:2017+A1:2023 |
|---|---|
| Battery | Tested to EN 50604-1, the standard for LMT batteries |
| Charger | Made for this battery's chemistry and voltage, not merely its plug |
The charger is where fires start
The UK's statutory guidance, which is a useful reading of the same risk, asks that an e-bike battery's management system prevent thermal runaway even when it is charged with the wrong charger. Elsäkerhetsverket's advice is the practical side: charge under supervision, not while you sleep, on a hard surface, with the charger made for the pack.
Chargers are getting faster at the same time. Bosch has announced a 12 A charger for the end of 2026, and ENGWE's new Zip folder charges at 100 W from USB-C, which means a laptop charger will do. A charger that is not built for the pack is still the wrong charger, and matching the two is exactly the check the planner runs: chemistry first, then voltage.
Where this goes next
- Compare e-bikes against the rules Every recorded specification, with the legal class beside it.
What Buildlas checks for you here
Every rule is published, with what it reads and what it does when a specification is missing.