The short answer: advertised range is measured on flat ground at low speed with a light rider. Real range is determined by battery watt-hours divided by your actual energy consumption — typically 50-70% of the sticker number.
The battery math
Battery energy in watt-hours (Wh) = voltage × amp-hours. Examples from the Veloflow lineup:
- E3: 48V × 13Ah = 624 Wh
- E3 Pro: 48V × 15.6Ah = 749 Wh
- E5 Pro: 48V × 18.2Ah = 874 Wh
- E5 Ultra: 52V × 20.8Ah = 1,082 Wh
- E7 Pro: 60V × 20.8Ah = 1,248 Wh
- E7 Ultra: 60V × 23.4Ah = 1,404 Wh
What consumes those watt-hours
- Speed: aerodynamic drag scales with the square of speed. At 40 km/h you burn roughly 2x the energy per km vs 25 km/h
- Weight: each extra 20 kg adds about 5-10% consumption
- Terrain: hills and off-road surfaces add 20-50%
- Temperature: below 10°C, capacity drops 15-30%
- Tire pressure: soft tires add rolling resistance and heat
A realistic formula
Estimate range as: battery Wh ÷ (consumption Wh/km).
Example — E7 Ultra, 1,404 Wh, mixed 20 Wh/km: 1,404 ÷ 20 ≈ 70 km. That matches its 75-85 km rating only at efficient speeds; at 40 km/h expect closer to 50-60 km.
How to compare scooters honestly
- Compare watt-hours, not kilometers — Wh is the number that actually scales with range
- Ask what speed and rider weight the range figure assumes
- Read for the certification (UL2272 for the US) and check the battery is UL2271 certified
- Treat any claim above ~25 Wh/km of real-world efficiency with suspicion
Want the full breakdown per model? Read How Far Can an Electric Scooter Really Go or compare the Veloflow series.
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