The provided sources do not contain information regarding the specific storage duration targets for Form Energy's iron-air battery technology. While the documents discuss iron-air batteries in the context of grid-scale energy storage and improvements to cycle life and efficiency, they do not specify an hour-count goal for long-duration storage.

The text does not contain an answer.

Would you like me to search for additional technical disclosures or investor materials that might contain these specific performance metrics?

What is the maximum storage duration targeted by the iron-air battery from Form

Related Content From The Pandipedia