Six Months In: California's SB 1271 Battery-Certification Law Is Reshaping the Market

California's SB 1271 took effect on January 1, 2026, and six months in, it's quietly doing exactly what it was designed to do: pushing uncertified e-bikes out of the largest e-bike market in the country.

The law, signed in September 2024, requires that every e-bike, powered mobility device, battery, and charger sold or leased in California be tested by an accredited laboratory to a recognized safety standard — UL 2849 for the full electrical system, UL 2271 for the battery, or the European EN 15194. The goal is straightforward: cut off the supply of the cheap, uncertified lithium-ion packs that have been responsible for the majority of catastrophic e-bike fires.

What we're seeing in the market is a real shift. Major brands — most of which already certified their lineups — have been largely unaffected. The pain has landed where it was supposed to: on the white-label, marketplace, and 'compatible battery' sellers who built a business on undercutting certified products. Several have pulled out of California shipping entirely rather than certify.

This connects directly to stories we've covered all year — the CPSC's recall of 47,000 imported battery packs, New York City's Local Law 39, and the steady drumbeat of UL 2849 revisions. The regulatory direction across the country is now unmistakable: certified or nothing.

Our standing advice hasn't changed, but California has made it easier to follow. Before you buy, look for the UL mark and verify it in UL's free public database. If a seller can't produce a certificate — or tries to talk you out of needing one — treat that as disqualifying. For the deeper why, see our safety coverage and our guide to how we test.