The Garmin Edge went every now and then and the thought in the business they would have to send the device to Garmin and this would then be around 70-100 cost. That reminds me, this was clearly too much, I decided to take the matter into their own hands. Very easy to install and the Garmin works again without Akkulaufzeiteinbüßen. The only negative was the long shipping time, I had to wait over a month on the battery.