eMotorbike or Electric Motorbike is a pure electric motorbike. There is a crossover with the eScooter.
Histogram showing number of packs vs pack size for BEV Motorbikes in the battery pack database.
Not 100% complete, but gives a good overview of the battery pack total energy used in these applications.
Based on the analysis of the battery pack data for BEV Motorbike applications, here is a comprehensive summary of the physical, electrical, and performance parameters.
Key Findings and Trends
- Energy and Mass Scaling: There is a strong linear correlation between battery energy and pack mass. Small commuter motorbikes typically feature packs between 1–4 kWh weighing 10–25 kg, while high-performance racing models (like the Ducati V21L) reach nearly 19 kWh and weigh over 110 kg.
- Voltage Systems: The majority of motorbike applications operate on low-voltage systems, frequently 48V, 50.4V, or 72V. However, high-performance models utilize much higher voltages (up to 691V) to support rapid power delivery and charging.
- Energy Density: The average gravimetric energy density is approximately 141 Wh/kg, with top-performing packs reaching up to 174 Wh/kg. Volumetric energy density shows more variation, averaging 174 Wh/L.
- Cell-to-Pack (C2P) Efficiency: For the records where data was available, the average cell-to-pack mass ratio is 66.8%, indicating that about two-thirds of the pack’s weight is active cell material.
Ducati V21L Moto E Battery
- total energy = 18.66kWh
- usable energy = 18kWh
- Usable SoC = 96%
- continuous discharge power
- 120kW at battery terminals based on 110kW at the motor
- charge power = 20kW
- nominal voltage = 691.2V
- capacity = 27Ah
- voltage range = 806V to 480V (480V is based on minimum 2.5V per cell under load voltage)
See also: eUSRacing: Seville’s MotoStudent Electric Team, Vinfast Theon S Battery