They are allowed to ship those batteries by air (as opposed to airing them by ship?). There are standard IATA and ICAO exemptions in effect and documents that tell how they should be packed. Fedex and others have produced lightly edited versions of the official guidelines. Russell --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .