Also found in: Dictionary, Acronyms, Wikipedia. (OPerations SECurity) Determining what information is publicly available in the normal course of operations that can be used by a competitor or enemy to its advantage. OPSEC is a common military practice that is also applied to civilian projects such as the development of new products and technologies. The Official Definition.
What a short duration is, and how it exactly impacts MRE shelf life, is anyoneâs guess. Chilling MREs in the fridge undoubtedly extends the shelf life of MREs, however it is not specified by how much. Some sites selling MREs claim they last as long as 130 months (almost 11 years) at 60 F (15 C) .
Depends on the type of batteries. You need to specify which one you are talking about; 1) Lead Acid: - Multiple types Gel VRLA, AGM VRLA, Flooded, Tubular(both sealed and open) 2) NiCD or NimH. 3) Lithium Ion or Lithium Polymer. For most of the sealed types the shelf life expected by customer is 10-20 years. Any battery with low internal resistance will have a good shelf life.