Hi,
Does Garmin release battery usage stats for this watch? It would be nice to know how much battery was used for each activity and the breakdown of which features used how much.
Then I could get an idea of how to optimise for longer outings, and it would be easier to compare.
For example I did a 7k run this morning, which used about 7% battery. I did an 18k run on Tuesday in similar conditions and location and that used almost 30%. So 4x the battery use for 2.5 times the time and distance I was out. It would be nice to know why.