The General Performance Specification for Non-Rechargeable Lithium Batteries, MIL-PRF-32271, is in the process of being updated. To request the drafts and provide feedback, please go to the following link: https://sam.gov/opp/c4fba97cbb7c48eeb494781ef63bce2e/view. Final comments are due by 10 January 2025.
For more information on battery specifications see https://battery.army.mil/battery-developer-hub/specifications/.