Ultra runners quick guide to the F5x

Ok. thought about a thread that would be easy to ask questions in, but be specific enough to find for the Ultra crowd. Of course some answers will apply to everyone, but my own selfish reasons for starting is geared towards ultra marathons. So here's my initial questions for those out there. I am asking questions rather than posting answer, since I've been rehabbing a torn Plantar tendon since Christmas. I'm taking a big big chance and gonna run 52m next week, and training has been left with a couple of back-2-back 10ks. So I cannot yet offer "Ultra" wisdom w.r.t the F5x.

Question: With so many features, and optional device inputs, what have you found that would maximum battery life. The three most obvious are
1) turn off the OHRM. 2) disable BT. 3) turn down backlight. I recall DC Ray saying having things like tempo or the new RD pod connected really down have an appreciable impact to battery usage. What have you found to maximize battery?

Question: What impact to battery life does OHRM enable have? I am curious about trying this out during the 52m. With a rehab foot, its gonna take me quite awhile. Possibly long enough I will need to carry my usb battery from the last drop bag. Normally I would be in the 10 to 12hr range. Possibly 2+ hours more with the foot.

Question: During USB charge (while in use) have you have found works easiest? just carrying the watch in you hand for 30+min or looping it on a hydration pack or belt?

Question: Some here has posted how they download the GPX of their ultra into their watches, and enabled that during the event. How has that worked our for you using the F5X? Does that incur an appreciable battery drain? Lastly, once you have a GPX file. where to you transfer it? a specific folder? how do you activate it on the F5x. Normally you would start an activitity (aka Trail Run). How do you incorporate the gpx nav part?

thanks for these and all other Ultra runners out there that care to put their Q&A here.
  • Question: What impact to battery life does OHRM enable have? I am curious about trying this out during the 52m. With a rehab foot, its gonna take me quite awhile. Possibly long enough I will need to carry my usb battery from the last drop bag. Normally I would be in the 10 to 12hr range. Possibly 2+ hours more with the foot.


    Hi!
    Have not run an ultra yet with the 5x.
    I am a "data junkie" and I am using the footpod (SDM4 but from now on the stryd power foot pod), tempe and the HRMrun 2 chest strap.
    Using GPS only and the 1sec recording.
    This is using about 10%/hour battery consumption.
    Will have a night marathon on Saturday night (CEST) and I will using the above setup.
    I can report back on Sunday with the battery stats.
    Sven
  • Hi!
    Have not run an ultra yet with the 5x.
    I am a "data junkie" and I am using the footpod (SDM4 but from now on the stryd power foot pod), tempe and the HRMrun 2 chest strap.
    Using GPS only and the 1sec recording.
    This is using about 10%/hour battery consumption.
    Will have a night marathon on Saturday night (CEST) and I will using the above setup.
    I can report back on Sunday with the battery stats.
    Sven


    10% per her sounds crazy high. I've not really monitored mine during my short training runs. gonna go for an easy 9 miles on saturday. maybe I'll fully charge and setup how I suspect I might. I really would like to leave OHRM on, even though I've never had the data before. same with my Garmin RD pod.
  • Ran a marathon with my 5x
    Data junkie as well : Footpod SDM4, Tempe, HRM, Runnig Dynamics pod (RD pod).
    Associated with iPhone all along, and LiveTrack activated
    1 sec recording GPS (without Glonass)
    CIQ Data field running all along : dozenrun
    It drained 30% for 3h45 -> 8% / hour
  • I'm getting about 10% per hour drain as well. Lots of people aren't though. Think I'm going to raise an RMA.
  • I'm getting about 10% per hour drain as well. Lots of people aren't though. Think I'm going to raise an RMA.


    Let's wait for tomorrow night.
    New Firmware, 1st race with stryd.
    Setup will be:
    Copy of the RUN app with only 2 CIQ Fields: Peters Race Pacer and Stryd Power
    Stryd on the left and tempe on the right shoe.
    HRMrun2 on the chest.
    Pace and Distance from stryd only. GPS just for recording every second. GLONASS off.
    Battery will be fully charged to 100% at about 4PM CEST. Marathon starts at 8 PM CEST
  • I rambling for 5hrs today using OHRM and Stryd. 1 x IQ field (Stryd), no maps showing. Had fully charged yesterday - was at 99% at start, 52% at finish. Close enough to 10% per hour. Looks like I may have to go without my Stryd for a 100km in September 🙁 What difference does the HRM-RUN strap make compared to the OHRM?
  • Ran 50 miler that took 10hrs 30. 1 sec recording and navigation along the preloaded route, GLONASS ON. No external sensors or BT. Had 40% left.
  • Former Member
    0 Former Member over 7 years ago
    I ran a 6 hour race a couple weeks ago, covering a little over 34 miles.

    GPS + GlONASS
    1 sec recording
    Stryd footpod
    No maps
    8 sec backlight (no telling how many times I used it)

    Battery was at 100% to start, and 67% at the finish.
  • I ran a 6 hour race a couple weeks ago, covering a little over 34 miles.

    GPS + GlONASS
    1 sec recording
    Stryd footpod
    No maps
    8 sec backlight (no telling how many times I used it)

    Battery was at 100% to start, and 67% at the finish.


    So you had the backlight and GLONASS on, ran an hour more than me... and used 15% less! �� Did you use optical heart rate or HRM-RUN??
  • Former Member
    0 Former Member over 7 years ago
    So you had the backlight and GLONASS on, ran an hour more than me... and used 15% less! �� Did you use optical heart rate or HRM-RUN??


    Optical. I have an HRM-RUN, but chose not to use it as I didn't care about the extra stats for this run. Backlight was on because the race was run at night.