If, like me, you frequently send full-length book manuscripts or other large files to your Kindle for its reading and annotation convenience, you may not be aware that Amazon makes it easy for Kindle owners to manage the wireless transmission costs involved and avoid the kind of unexpectedly large charges that can occur, for instance, if you inadvertently send (or receive) a text document that is embedded with a lot of full-color graphics or other multimedia elements or send (or receive) a large document while traveling internationally with your Kindle.

Amazon generally charges wireless transmission fees of 15 cents per megabyte (rounded up) for sending personal documents to your Kindle via the Whispernet; or 99 cents for U.S. Kindle owners traveling internationally. To set a Personal Document Charge Limit, go to your Manage Your Kindle page and scroll down to the heading that reads “Your Personal Document Charge Limit.”

As noted there you can then set a maximum charge anywhere from $0.00 to $49.50, and any personal document exceeding this charge will be sent to your you@free.kindle.com address and a notification will be sent to your Kindle.

Click here for more information about sending files to your Kindle from a pre-approved email address.