The Garmin Power Pack is a great tool to extend the life of your Garmin Edge on long or multi day rides. Two issues to watch out for 1) The battery pack clips into a special Garmin bike mount. It is tricky to get it to click in. On my last ride I thought I had it clicked-in and secured - but clearly not. 20 miles into my ride the external battery pack was no longer with me. 2). When you buy the battery pack, it does NOT come with the special bike mount. Unclear if you can use a standard bike mount (?). The special bike mount costs another $40.
