Thanks for this. This is what I was looking for. I am sure there is something wrong with my unit. It's great to get feedback from someone else who heavily uses their Garmin with a similar number of devices/sensors and see what kind of battery life they were getting.
-Sean
Heard back from Garmin Support -
"Thank you for the information I requested. I created a engineering ticket so my techs can take a deeper look at this issue. So, bear with us while we investigate it further.
Thank you for choosing Garmin,"
I'll follow up when I hear back from engineering.
It is also 1900 mAh. You can see this here https://fccid.io/IPH-03877/Internal-Photos/Internal-Photos-4703133.pdf#page=3 at the internal photos from FCC-ID-Test (https://fccid.io/IPH-03877/)
The battery life compared to the edge 1030 is higher because of the new low energy Sony-GPS-Chip in the 1030 plus.
So I wanted to wrap this up... After a few emails and looking into my case, Garmin support decided that the battery in the device that I bought was defective. They shipped me a new device and the new device is only using 4-5% for a 1.5 hour ride which calculates to 25+ hours of battery life the device should be getting. Much better than what the original device I bought was getting. Thanks all for your help and feedback and thanks to Garmin Support for taking care of me.