NIU KQi 300P Electric Scooter

NIU lists the KQi 300P at 32 km/h, about 20 mph, in its US store, its manual and its global table, with four modes: Pedestrian (3.7 mph), E-Save (9.3 mph), Sport (20 mph) and a custom mode set in the NIU app. People search for a 300P speed unlock, but by NIU's own figures there is no faster version of this scooter: the 300X is the model with a faster figure, 38 km/h (23.6 mph) in NIU's global table and manual, though NIU's US store sells the 300X at 20 mph too. At 20 mph the 300P sits at New York's 20 mph line for e-scooters (VTL §114-e) and above California's 15 mph limit (Vehicle Code §22411), so California riders must keep to 15 mph or below; E-Save mode does that. Scooters are not e-bikes, so the US e-bike classes do not apply. California also requires a driver's license or instruction permit (§21235), New Jersey's legal e-scooter must be under 19 mph, and Pennsylvania does not allow e-scooters on public roads.

NIU claims about 30 miles and publishes its test: a 165 lb rider at a constant 9.3 mph on a flat road at 77°F. That speed is the E-Save cap, so the claim describes slow riding. We estimate full-speed range by dividing battery capacity by 22 to 27 watt-hours per mile, a band taken from published full-speed tests and adjusted to a 175 to 180 lb rider. For 486.7 Wh that is about 18 to 22 miles a charge. An independent test by the review site ERideHero, with a 175 lb rider, recorded 17.8 miles at its fastest setting, at the bottom of that band, and 24.3 at its slowest. The battery is marketed as 48 V; NIU's manual rates it at 46.8 V, which is how 10.4 Ah becomes 486.7 Wh. Charging takes about 5 hours on the 54.6 V, 2 A charger.

The 10.5-inch tubeless air tires and 45 mm hydraulic front fork ride more softly than the solid tires on cheaper scooters such as the Hiboy KS4 Pro, though there is no rear suspension. Mechanical disc brakes at both wheels, with regenerative braking from the rear motor, are a step up from the rear disc plus electronic brake on budget scooters such as the KS4 Pro. The lights include a halo headlight, a brake light and turn signals, and the NIU app adds cruise control, a charge limit and over-the-air updates. One claim to read carefully is "All-Terrain": NIU's own manual limits it to flat pavement, steps no higher than 0.4 in and gaps no wider than 1.2 in, while the Amazon listing says dirt and gravel. Treat it as a comfortable street scooter, not an off-road one. It weighs 45.97 lb and folds to 46.2 x 21.3 x 21.4 in.

NIU's US store lists the KQi 300P as UL 2272 certified, and its manual shows a UL mark for the KQi 300P and 300X, but neither names a certificate number or a lab, and the Amazon listing says only that all NIU scooters have "UL certification". We could not verify it in the certifier's directory. New York City has required UL 2272 for e-scooters sold there since September 16, 2023 (Local Law 39), and California's SB 1271 has required UL 2272 battery testing for motorized scooters sold there since January 1, 2026. No CPSC recall found for the NIU KQi 300P as of October 2026. NIU's warranty covers the main body, including battery and motor, for 2 years.

• NIU KQi 300X ($899 as of Oct 22, 11:10 AM EDT, subject to change): the same scooter with 25% more battery (608.4 Wh, about 23 to 28 miles by our estimate), a stronger motor and a 25% climb rating, at 48.7 lb. Worth the difference if your commute is over about 18 miles or hilly.
• Segway Max G2 ($699.99 as of Oct 22, 11:10 AM EDT, subject to change): suspension at both ends and a 551 Wh battery, but a front drum and rear electronic brake instead of discs, at 53.5 lb.
• Hiboy KS4 Pro ($399.98 as of Oct 22, 11:10 AM EDT, subject to change): the budget alternative, with published UL certificates and a 417.6 Wh battery, but solid tires, no front suspension, a single rear disc, IPX4 and a 220 lb limit.

Buy the KQi 300P if you ride on city streets with rough patches, want disc brakes at both ends and front suspension, weigh up to 265 lb, and your round trip is under about 18 miles. It is the NIU to buy when the 300X's extra battery is more than you need. Skip it if you need to go further (the 300X), if you carry the scooter up stairs every day (45.97 lb), if you want true off-road use (NIU's manual rules it out), or if you need a UL certificate number in hand: we found none published.