Payload Impact Range Estimator

Battery animation
Total usable energy.
Rider + bike weight without extra load.
Additional cargo or passenger weight.
Typical eBike: 12–20 Wh/km.

The Payload Impact Range Estimator helps determine how much additional weight reduces your eBike’s real-world range. Extra payload increases rolling resistance and motor power demand, forcing your battery to consume more Wh per km. Even 10–20 kg of load can noticeably shorten distance depending on terrain and riding speed.

Why Payload Changes Energy Consumption

eBikes use more energy when additional mass is moved uphill, accelerated or ridden against air resistance. Extra payload means the motor must deliver more torque, which increases current draw from the battery. Because Wh per km rises, your available distance per charge decreases.

  • Higher rolling resistance
  • More acceleration power required
  • Increased current draw at speed
  • Reduced battery efficiency

Biggest Impact Comes from Hills and Stop-and-Go

Hills multiply the effect of extra weight. Every kilogram requires more continuous climbing power, which dramatically raises Wh consumption. Urban riding with repeated acceleration also increases the impact, while flat cruising at moderate speed shows smaller range reduction.

How to Minimize Range Loss with Cargo

You can reduce the energy penalty of heavy loads by choosing a lower assist level, smooth acceleration, slower hill speed and proper tire pressure. Upgrading tires or reducing wind drag also helps regain lost range.

  • Use eco mode when loaded
  • Maintain correct tire pressure
  • Reduce hill throttle bursts
  • Avoid oversized cargo boxes

Frequently Asked Questions

Q: How much payload reduces eBike range?
A: Every 10–20 kg can reduce range by 5–12% depending on terrain and speed.
Q: Does passenger weight affect battery life?
A: Yes, more load increases current draw and can stress the battery on hills.
Q: Does cargo matter more on hills?
A: Hills heavily multiply the energy cost of extra weight.
Q: Will tire choice change loaded range?
A: High-rolling-resistance tires amplify load penalties, while efficient tires help.
Q: How can I improve range with a passenger?
A: Lower assist, maintain tire pressure and reduce acceleration bursts.