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Getting a handle on Battery Impacts

badbri
over 5 years ago

So I know there are a bunch of battery threads already but the point of this one is to try to understand the impact of certain known features on battery life cycles.

For example, Garmin states that the 945 should get about 10 hours of life with both GPS and Music playing through a Bluetooth connection.  I've pretty well corroborated that assertion on my own over countless runs with music where I use battery at a rate of about 10% per hour.

Has anyone been able to substantiate battery drain standards for any of these other scenarios?

- Carrying a phone thus a constant Bluetooth connection

- 1 sec recording vs "Smart" recording

- Navigating a course with a map field included in available data fields.

- Navigating a course withOUT a map field included in available data fields.

- Using a Map field as an available data field but NOT Navigating a course.

- Climbpro?

- Autoclimb?

- Certain CIQ data fields?  Such as:  Stryd power?  The many multifield datafields like Datarun etc.

adding a few others after the original post:

- GPS vs GPS+Glonass or GPS+Galileo

- On board HRM vs External HRM

- Using a CIQ Watchface (but not having it displayed in the activity - strange I know, but I suspect it has an impact)

  • 0 over 4 years ago in reply to badbri

    Using navigation keeping the map on your watch screen uses a ton of battery. I can use the map feature, mostly keeping the map off my main screen but occassionally looking at it and get around 30 hours of battery on my 945 (I use the little red arrow to verify I am on course and only put the map on display if I am reaching a fork in the trail).  If I keep the map on the main screen for most of the run, it is more like 21 hours of battery. Glonas and other GPS arrangements have a small amount of affect on your battery life.

  • 0 over 4 years ago in reply to Anže
    Anže said:
    Does looking at the map during activity use more battery?

    Constantly re-rendering the map screen as you go along is a major processor and power hog.

    Having a text based datafield as the primary screen, and the map only as a secondary screen, and occasionally scrolling to the map when you need to do a navigation check doesn't use very much power at all.

    GPS & GLONASS (or Galilleo) use about 40% power more than GPS alone.

  • 0 over 4 years ago in reply to mcalista

    Ok, thanks for the answers

  • 0 over 3 years ago

    When is the battery manager coming to the 945 ?  It is in the manual but not on the watch.