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Guides · Safety

UL 2849, UL 2271 and UL 2272: e-bike and scooter battery safety

What the safety standards cover, how to check a brand’s claim, and the charging habits that reduce fire risk.

By the Pele Power Rides team · Updated October 17, 2026 · Spec comparison, not a hands-on test

Affiliate disclosure: Pele Power Rides is reader-supported. Links to Himiway (via Awin) and NIU (via GoAffPro) are affiliate links, marked “Affiliate link”, and we may earn a commission at no extra cost to you. Links to other brands are plain links that pay us nothing. Commissions never decide which models we include or how we rank them. Full disclosure.

Lithium-ion batteries store a lot of energy in a small space. When they are well designed, tested and treated properly, they are very safe. When they are poorly made, damaged or charged with the wrong charger, they can overheat and catch fire, and e-bike and scooter battery fires have become a serious concern for fire departments in dense cities.

Safety standards exist to cut that risk. Here is what they cover, how to tell a strong claim from a weak one, and the habits that matter as much as the certificate.

The three standards

UL 2849 covers the electrical system of an e-bike as a whole: battery, charger, motor, controller and wiring tested together. It is the most complete certification for an e-bike.

UL 2271 covers batteries for light electric vehicles. A UL 2271 battery has been tested as a pack, but the rest of the bike’s electrical system hasn’t necessarily been tested with it.

UL 2272 covers the electrical system of personal e-mobility devices such as e-scooters, hoverboards and self-balancing boards.

Testing can be done by UL Solutions or by other accredited labs such as Intertek or SGS, which test to the same UL standards. “SGS-certified to UL 2849” is a legitimate claim.

Why it matters for buyers

New York City requires e-bikes, e-scooters and their batteries sold, leased or rented there to be certified to these standards, and other cities, landlords and building managers have adopted similar rules for bikes kept indoors. Even where it isn’t required, certification is the clearest signal a brand has had its battery and charger independently tested.

How to read a brand’s claim

  • Strongest: the specific model is certified to UL 2849 (bike) and UL 2271 (battery), or UL 2272 for a scooter. Example: the Velotric Discover 3 states UL 2849 & UL 2271.
  • Good: the model is certified to UL 2849 by a named lab, or the brand states both standards.
  • Partial: only the battery is certified (UL 2271). The Aventon Aventure 3 page we checked stated UL 2271 (battery).
  • Weak: a site-wide claim not tied to the model, or “UL-certified battery” without naming a standard. The Heybike Cityscape 2.0 page says UL-certified battery (standard not named).
  • None: no certification mentioned. Ask the brand for a certificate before buying.

You can ask a brand for the certificate number and the testing lab, and check the lab’s online certification directory.

Safe charging habits

  • Use only the charger that came with the bike or an approved replacement from the brand.
  • Charge on a hard, non-flammable surface, away from exits, beds and couches.
  • Don’t charge overnight unattended or while you’re away, where you can avoid it, and unplug when full.
  • Let a hot battery cool before charging, and don’t charge below freezing.
  • Stop using a battery that is swollen, leaking, smells odd, has been dropped hard or submerged, or gets unusually hot.
  • Don’t use rebuilt or aftermarket batteries that aren’t certified for your bike.
  • Install smoke alarms where you charge and store the bike.

See our battery care guide for storage and lifespan tips.

Recalls and warnings

Check the CPSC website for your brand before buying, especially used. Two notices affect brands we track: CPSC recall 25-391 (July 2025) covered 36V batteries on VIVI e-bikes sold December 2020–November 2023, with free replacement; and CPSC warning 26-118 (November 2025) told owners to stop using Rad Power Bikes batteries RP-1304, RAD-S1304Y and HL-RP-S1304 sold with older models. Both are linked on the affected model cards across this site.

Certification claims of every model we track

Here is what each brand’s official product page stated about certification when we checked on Oct 15, 2026. Brands update pages, so confirm on the product page before you buy.

  • Aventon Aventure 3: UL 2271 (battery)
  • Aventon Pace 5 REC Step-Through: UL 2849 (bike), UL 2271 (battery)
  • Aventon Soltera 2.5: UL 2849 / UL 2271
  • Heybike Cityscape 2.0: UL-certified battery (standard not named)
  • Heybike Mars 3.0: UL 2849 (bike), UL 2271 (battery)
  • Heybike Ranger S 2.0: UL 2849
  • Hiboy EX6F Low-Step Folding: UL 2849 (Hiboy site-wide claim)
  • Himiway D5 (Zebra): no UL standard named on the page we checked
  • Himiway D5 2.0: no UL standard named on the page we checked
  • Lectric XP Lite 2.0: UL 2849 (bike), UL 2271 (battery)
  • Lectric XP4 750 (long-range): UL 2849 (bike), UL 2271 (battery)
  • Lectric XPedition2: UL 2849 (bike), UL 2271 (battery)
  • Lectric XPress2: UL 2849 (bike), UL 2271 (battery)
  • NIU BQi-C3 Pro: UL 2849
  • Rad Power Bikes RadExpand 5 Plus: UL 2849 and UL 2271
  • Rad Power Bikes RadRunner: UL 2849 and UL 2271
  • Rad Power Bikes Radster Road: UL 2849 and UL 2271
  • VIVI ACE01 Pro: UL 2849 / UL 2271 (SGS-certified)
  • VIVI ACE07 Commuter: UL 2849 / UL 2271 (SGS-certified)
  • VIVI F26FUL Long Range: UL 2849 / UL 2271 (SGS-certified)
  • VIVI MT20UL Folding Fat Tire: UL 2849 / UL 2271 (SGS-certified)
  • VIVI MT26GUL Rambler: UL 2849 / UL 2271 (SGS-certified)
  • Vanpowers Cycanon: UL 2849 (bike), UL 2271 (battery)
  • Vanpowers GrandTeton Pro: UL 2849 (bike), UL 2271 (battery)
  • Vanpowers UrbanFold: no UL standard named on the page we checked
  • Vanpowers UrbanGlide Standard: UL 2849 (bike), UL 2271 (battery)
  • Velotric Discover 3: UL 2849 & UL 2271
  • Velotric Fold 1: UL 2849 & UL 2271
  • Velotric Nomad 2: UL 2849 & UL 2271
  • Apollo City 2.0: UL 2271 & UL 2272
  • Apollo Dash: UL 2272
  • Apollo Explore 2.0: UL 2271 + UL 2272
  • Apollo Phantom 2.0 (52V): UL 2271 (battery)
  • Gotrax G3 Pro: UL 2272
  • Hiboy MAX Pro: UL 2272
  • Hiboy S2R Plus: UL 2272 (Hiboy site-wide claim)
  • Hiboy TITAN PRO (2026): UL 2272
  • NIU KQi 200P: UL 2272
  • NIU KQi 300X: UL 2272
  • NIU KQi Air: UL 2272

Buying used

Used e-bikes and scooters can be good value, but battery history is unknown. Ask how old the battery is and how it was stored, look for swelling or damage, check the battery model number against CPSC recalls and warnings, and confirm that the charger is the original. If the price is low because the battery is “tired”, budget for a certified replacement from the manufacturer, not an uncertified generic pack.

Frequently asked questions

What does UL 2849 certified mean?

That the e-bike’s whole electrical system (battery, charger, motor and controller) has been tested together to the UL 2849 standard by an accredited lab.

Is UL 2271 the same as UL 2849?

No. UL 2271 covers only the battery pack. UL 2849 covers the full e-bike electrical system, which usually includes a UL 2271 battery.

Which standard applies to electric scooters?

UL 2272, which covers personal e-mobility devices. Ten of the 11 scooters we track state it.

Related guides

How we work: every number on this page comes from the manufacturer’s official product page, checked Oct 15, 2026, and each model links to its source. Range and top speed are the brands’ own claims. We haven’t ridden or bench-tested these models, and prices change often, so check the current price on the brand’s site.