The U.S. Department of Energy's Fuel Cell Technologies Office has issued a request for information (RFI) to the research community and relevant stakeholders, according to a release. The DOE is seeking feedback about fuel-cell technology validation, commercial acceleration, and potential deployment strategies for continuous fuel-cell rechargers (range-extenders) on board light-duty battery-electric vehicle fleets. Also requested is technical information and information on vehicle makes and models that are the most feasible for an aftermarket modification to extend vehicle range using a fuel-cell system. Light-duty all-electric vehicles with fuel-cell range-extenders for commercial fleet vehicles potentially have comparable or better performance than internal-combustion-engine propulsion systems for battery electric vehicles. Electric drivetrains might benefit from batteries for delivering power and fuel-cell systems for energy storage and peak power needs. For details, see the RFI announcement DE-FOE-0001145 or email questions to FuelCellCOBRA@ee.doe.gov with “question” in the subject line. Responses to the RFI must be submitted by 5 p.m. (EDT) Aug. 7, 2014.