MIL-PRF-32565 governs rechargeable sealed 6T lithium-ion batteries for ground vehicles. It is narrow, application-specific, and publicly accessible on DLA ASSIST (document date August 4, 2022; metadata updated July 1, 2026). Three battery types, explicit thresholds for capacity, cycle life, abuse tolerance, environmental survivability, BMS accuracy. A defined three-tier verification structure: qualification inspection, initial production inspection, periodic production inspection. QPL listing required before contract award.
By any reasonable measure, this is a settled qualification lane. It is also, by its own admission, incomplete.
The standard itself says so. Section 6.18: passing the Navy safety program tests within the specification "will not constitute a safety approval" for Navy vessels. Platform-and-NSN-specific authorization is a separate process. Section 6.11: transport compliance traces to UN 38.3 and 49 CFR 173.185, not to MIL-PRF-32565. And 10 USC 4865, effective for new programs January 1, 2028, requires functional cell component sourcing proof that the specification never contemplated. Cathode origin, anode origin, separator origin, technology license provenance, a >95% non-FEOC cost threshold. MIL-PRF-32565 Section 6.7 traces cells to manufacturer and lot code. It does not trace materials to geography or cost origin.
Any change in design, material, process, or facility triggers a new FAT. A sourcing change made to satisfy Section 4865 resets the qualification clock on MIL-PRF-32565. Two evidence requirements, coupled by a reset mechanism that neither document acknowledges.
A specification this well-scoped still knows where it ends. Most borrowed standards applied to adjacent domains do not. When your DVP cites a framework written for a different application, verify whether it carries the same explicit boundary markers. If it doesn't, your DVP owns the gap.
Navy vessel authorization: MIL-PRF-32565 includes Navy safety testing (S9310-AQ-SAF-010) as a qualification test, but Section 6.18 explicitly states this does not constitute Navy platform approval. Separate lane, separate evidence.
Section 4865 sourcing proof: Requires >95% non-FEOC functional cell component cost origin, technology license provenance, non-FEOC final assembly. No visible DFARS implementation as of July 2026. New program deadline: January 1, 2028.
FAT reset triggers: Cell supplier change, cathode/anode material change, process change, facility change. Each independently resets First Article Testing.
Transport eligibility: UN 38.3 / 49 CFR 173.185 is a prerequisite, not a product of MIL-PRF-32565 qualification.
Last verified: July 17, 2026, against DLA ASSIST metadata. Next review due August 3, 2027.