consumption . The concept behind this central air duct has been honed as part of the company ’ s land-speed record programme , and in the WMC300E + an optimised dual-channel design delivers a 25 % increase in aerodynamic efficiency . Key to the bike ’ s rapid charging , and therefore its high operational availability , is a unique battery concept , developed and built by specialist engineering provider MAHLE Powertrain . For motorcycles , the transition to an electric powertrain enables greater packaging freedoms and it is this principle that shaped the battery form . After a comprehensive programme of modelling , simulation and prototyping , WMC and MAHLE Powertrain ’ s engineers settled on a T-shaped battery pack , delivering mass centralisation ( for optimum vehicle dynamics ), maximising the duct aerodynamic efficiency benefit and fit within the bike ’ s complex packaging constraints . The battery cell features advanced Lithium Cobalt Oxide with Nickel Manganese Aluminium chemistry , capable of sustaining high charge rates yet also remarkably resistant to ageing for a longer lifespan . The pack incorporates key elements from MAHLE Powertrain ’ s innovative M ³ x battery module concept , including its novel cooling features that enhance cell thermal performance and ensure even temperature profiles across the entire pack , as well as the ability to supress propagation between cells in the event of a failure .
A DC-DC converter is integrated within the battery pack , allowing the traction motor , charger , and the bike ’ s 12V system to be connected directly to it , simplifying the overall implementation . Special consideration was given to the need to power ancillary equipment such as lights , sirens and radios by emergency responders . The battery ’ s highly space-efficient design , despite its generous 11.9 kWh capacity , has allowed the practical under-seat storage to be retained and can easily accommodate a full-face helmet .
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