Amazon.com: Gomadic Portable AA Battery Pack Designed for The Garmin etrex 10 20 30 - Powered by 4 X AA Batteries to Provide Emergency Charge. Built Using TipExchange Technology : Electronics
Overview of the Settings Menu in the Garmin Etrex 30 - YouTube
How-To Perform Reset Procedures on the Garmin Etrex 30 - YouTube
eTrex 10/20/20x/30/30x - Device Overview
How to Reset the Etrex 30 Glonass and GPS Outdoor Handheld - YouTube
News: Garmin Announces New eTrex GPS Units - Singletracks Mountain Bike News
RAM® EZ-Roll'r™ with Flex Adhesive Mount for Garmin eTrex 30 + More – RAM Mounts