My wife picked me up a Vivoactive 3 for Christmas to replace my aging Vivosmart HR+. While I'm really liking the new device, the battery life is not coming anywhere close to the "Up to 7 days" Garmin projects. The first charge lasted about 2.5 days and it looks like this most recent charge will stretch to maybe 3 days.
I haven't used the GPS and likely won't until warmer weather when I can take the kayak out. I do work out daily on the treadmill nightly for about an hour. To help conserve power I've dialed down the screen brightness, turned off the automatic back-light, minimized how long the backlight is on and cut back on the number of notifications my iPhone generates.
Am I missing any other tricks to make the most out of the battery's life? Will the battery life slowly improve as I use the Vivoactive 3 or is it best to buy a few more charging cables for the office and car?