Perform calendar life portion of the lot acceptance testing.

The contract, identified by solicitation number 80NSSC26931609Q, is a sole-source acquisition issued by the NASA Shared Services Center under FAR Part 12 for the performance of calendar life testing on commercial lithium-ion 18650 cells. It is awarded to Symmetry Resources, Inc., and covers a base period of five and a half years with four optional one-year extensions, totaling up to eight years of performance. The work involves testing 250 cells across five different designs under controlled states of charge (0%, 30%, 60%, 90%, 100%) and temperature conditions to evaluate capacity fade, DC resistance growth, and self-discharge rates. Acceptance is based on strict technical thresholds: cells must retain at least 75% of their beginning-of-life capacity when discharged at specified rates; failure to meet this triggers test termination. Data collection must adhere to stringent measurement tolerances—voltage within ±2 mV, current within ±2 mA, temperature within ±1°C—and all results must be documented in annual reports submitted eight weeks after each yearly test cycle. All testing occurs at NASA Johnson Space Center in Houston, Texas, with cells delivered by NASA and returned to a hazardous materials shipper upon completion and approval. Packaging and preservation protocols require cells to be stored in sealed containers with desiccant throughout the 365-day storage period and prior to annual testing, with mandatory equilibration to ambient conditions for over one hour before opening. Each cell must be clearly labeled with design, manufacturer, and date code for traceability, though no MIL-STD labeling standards are mandated. The contract does not specify monetary value, payment office details, invoicing procedures, or accounting codes, and no contracting officer’s representative or technical representative is named; Cara Craft of the NASA Shared Services Center serves as the sole point of contact for submissions. Compliance is evaluated through pass-fail criteria based on adherence to test protocols, measurement accuracy, and reporting completeness, with no trade-off or pricing evaluation involved. The procurement is non-competitive under FAR 12.102(a) due to unique technical requirements and no other qualified sources, and hardware disposition after testing requires prior NASA approval before shipment. No formal attachments, clause listings, certifications, or socioeconomic representations are included, and all submissions must be sent via email to Cara Craft by the deadline of April 30, 2026, at 3:00 p