Hi,

This is Johnson from NIU Customer Support. I noticed your review and I'm truly sorry to hear about the ongoing issues with your vehicle. Thank you for bringing this to our attention.

Please accept our heartfelt apologies for the late response during the Spring Festival. As for your concern, the KQi3 Sport can cover a distance of up to 24.9 miles (40 km) on a single charge. However, several factors can affect the actual range:

Riding Mode: The typical range is tested in the E-Save mode (9.3 mph or 15 km/h). The motor output power of the KQi3 Sport is 300 Watts. Switching the riding mode from E-Save to Sport, the output power will increase from 300 Watts to 600 Watts. In return, the speed becomes higher but the claimed range will be shortened by 40%.

Riding Style: Smooth acceleration and braking help maintain a longer range. Aggressive riding with frequent stops and starts will decrease the range.

Rider Weight: The typical range is tested with a rider weight of around 165 lb (75 kg). Heavier riders may experience a shorter range.

Terrain: Flat, smooth surfaces will provide the best range. Riding on hilly or uneven terrain will reduce the range.

Weather Conditions: Optimal range is achieved in moderate temperatures ranging from 70℉ (22 ℃) to 77℉ (25℃). Extremely cold or hot temperatures can affect battery performance and reduce the range.

Tire Pressure: Properly inflated tires reduce rolling resistance and can help achieve the maximum range. Under-inflated tires can decrease the range.

Hope this information can help you. If you have any other queries, please DM us or email us at [Global-Service@niu.com] with more details such as whether there is an error code on the dashboard, and we can continue there!

We're committed to resolving your issue as swiftly and smoothly as possible.
Warm regards,

Johnson
NIU Customer Support Team