I have four new out of the box interceptor 2 sealed lead acid batteries nano silica type. The production date is July 2024 and two of them are August 2023. They all test great with resting voltage at 12.6 or 12.7.
These batteries or similar models are a minimum of about $150 a piece when new. Asking for $75 each or $250 for the set of four OBO. Can drop off within 15 minutes of Folsom or Shingle springs for full price.