The Naval Research Laboratory in Washington, DC seeks quotations for new Vertiv UPS Battery String equipment, brand name or equal, under a full-and-open, firm-fixed-price commercial RFQ (NAICS 335999; PSC 6140). Offerors must be the OEM or an OEM-authorized dealer, distributor, or reseller and must provide manufacturer documentation confirming authorization for the specific items; remanufactured or gray-market items are unacceptable, and all equipment must carry the manufacturer’s warranty. Delivery is to U.S. Naval Research Laboratory, 4555 Overlook Avenue SW, Bldg. 49–Shipping/Receiving Code 3400, Washington, DC 20375. Award will be made on a lowest-price technically acceptable basis to a responsible offeror with active SAM registration, and any maintenance-renewal performance period must begin on or after contract award and cannot be backdated. Interested quoters should submit one technical and price quote by email to the government point of contact, including DUNS number and CAGE code and referencing the solicitation in correspondence.