“…The C evolution (lower case “e”) runs on 11 kW of continuous output, and 35 kW at peak output.
Top speed is around 74 mph – and acceleration is similar to 600cc scooters, which can typically hit 60 mph in under seven seconds.
Redline for the electric motor is around 10,000 rpm, where it’ll hit 47 peak horsepower, and continuous output is around 10 horsepower – all without the delay of torque buildup.
The production model will feature a drivetrain swing arm with a liquid-cooled alternator set behind the lithium-ion batteries, which are set in the same storage modules as the BMW i3.
Unlike the i3, the C’s batteries are air-cooled – with the body’s aerodynamics creating an air shaft that flows through the center of the batteries’ die-cast aluminum casing – along cooling ribs that facilitate heat dissipation.
The batteries’ eight kilowatt-hours give the scooter around 100 kilometers, or 62 miles, of range, slightly more if the regenerative coasting and braking are used to their potential.
The regeneration activates when the throttle grip is closed, at which point the alternator creates drag torque, something like engine braking, which gets transformed into charge.
BMW says that the batteries will charge from empty to full capacity in under three hours using a household socket..”
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