Originally Posted by enkov
If you don't use search in your books you can stop the indexing with stopIndexing debug command but it will last until you restart your Kindle. How to enter the debug mode - search to "debugOn Kindle 2" or "debugOn Kindle 3" in Google.
Thanks this is a GREAT tip since if I can stop a reindexing until I have it plugged in at night I would still be able to carry my Kindle during the day. Yippee!