The Naval Research Laboratory (NRL) in Washington, DC is conducting market research through this Sources Sought/RFI to gauge industry interest and identify potential sources for a Battery Microcalorimeter. Posted on 12 November 2026, it is for informational and planning purposes only and does not commit the Government to issue a solicitation or make an award. Interested responsible sources may submit capability statements covering company/contact information, business size/socioeconomic categories, technical capabilities, commerciality, and product description showing how the proposed item meets or exceeds the attached specifications, with responses limited to 10 pages. Place of performance is NRL-DC and the Contractor Facility. The Government may modify the requirements and specifications as procurement planning continues.