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A hybrid-electric flight demonstrator will feature an advanced mobile charging unit capable of supplying up to 1,500 V of power to the plane’s battery system. Pratt & Whitney Canada, a division of Virginia-based aerospace and defense giant RTX Corporation, plans to test a propulsion system linking to the high-power battery later this year. 

The mobile charging unit delivers up to 280 kW and 1,500 V, supporting the Megawatt Charging System standard in the works for high-voltage technologies. The Charging Interface Initiative is developing the standard for large battery electric vehicles (BEVs) like trucks and buses. However, it could be expanded to battery-powered planes and electric vertical take-off and landing applications.