HOW FAR WILL AN E-BIKE GO ?
…On one charge of the battery
That depends on…
The bike, the battery, the terrain, the ride, the day, and you, it’s rider
- The bike….it’s weight, its condition, whether the tyres are fully pumped, and whether the wheels spin freely, and the brakes don’t drag
- The battery….its voltage, its AH, the ampere-hours, and its age…(the product of the V and the AH is watt-hours, and that is the energy available to make the bike go, although there will always be some energy left that can’t be used). The capacity of any battery reduces with its age and treatment (a separate topic)
- The terrain….hills have a very big effect. Going slowly up a hill causes a bigger drain on the battery than going fast on the flat.
- The ride….the speed, the stopping and starting. Accelerating fast causes a bigger drain on the battery than does getting going more slowly. Frequent braking wastes the energy that got you going. Going at moderate speed could give about one third more range than going at full speed (and vice versa).
- The day….less if it’s windy, or very cold and
- You, the rider…how much effort you contribute yourself - As a guide, a fit cyclist could sustain about putting out energy of about 150-250W, which is comparable to the motor’s usual 200-250W. However it doesn’t work like 200W from the motor plus 200W from you, because the more effort you make the less the motor makes.
Tips for getting a greater range.
1. keep tyre pressure up (this also reduces the chance of a puncture)
2. accelerate slowly, and
3. anticipate stopping and use the momentum to glide to a stop.