Legality in the States in 2025:
- https://thecyclistchoice.com/resources/california-ebike-laws/
- Starting January 1, 2026: All new e-bikes and batteries sold must meet UL 2849 or EN 15194 safety certification standards per SB 1271 (2024). Batteries must display certification lab marking.
- https://act-lab.com/en-15194/
- EU 15194 is the EU equivalent of UL 2849, the American standard for e-bikes.
- Standardization and Market Access: EN 15194 serves as a harmonized standard across the European Union (EU). Compliance with this standard is essential for e-bike manufacturers to gain access to the European market. By undergoing EN 15194 testing, manufacturers can demonstrate that their products meet the necessary requirements and achieve the CE (Conformité Européene) marking, indicating conformity with EU legislation.
- Ebike Laws by State 2025: What Every Rider Should Know
- Swytch kits: "They are made to order and comply with the highest standards in eBike battery safety regulations worldwide including CE, UKCA and UL2271"
- Overview of worldwide standards
UL Certification:
- What does it mean for something to be UL 2849 Compliant?
- What is UL Certification and Why is it Important for Batteries?
- Battery Safety Testing and Certification (UL.com)
- E-Bikes Certification: Evaluating and Testing to UL 2849
- Legal E-Bike Conversion Kits: Where to Buy in 2025
- Notably:
- 3. Swytch – London, UK (Ships Worldwide)
- Highlight: Featherweight 250 W front-hub kit that snaps on/off with a quick-release power pack.
- Compliance: Certified to EN 15194 (EU) and CPSC wattage limits for U.S. customers.
- List of battery packs that are UL certified?
Battery Repair and Replacements:
- SWAP-E Swytch Adapter (https://www.swap-e.co.uk/) - "This kit allows any 36V third party battery to be used instead."
- Adapters for both Gen2 and Gen3 are available
- To be used with a generic battery like this which is UL2271 Certified
- Found from this thread: "Solution for Swytch Kit Users Needing Battery Replacements or Longer Range", namely this post
- Swytch Max Battery Teardown
- I Built a TINY E-Bike Battery— How Far Will It Go?
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