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Realistic battery life, fenix 5?

Former Member
Former Member
Hello all,

So last week I bought a fenix 5. Store had it in open box and on the shelf but it was off, I was worried about it having been on for months on the shelf but they told me it had never been powered on, they only had the 5X on display powered up. Bought it, no discount got home and charged it. The battery was completely discharged.

One of my main reasons for buying the fenix 5 vs a 3 or another less expensive option was battery life - as I am starting to run ultra marathons.

Last Saturday ran my first. I started with 95% charge. GPS only mode (no Glonnass). I played occasionally with the watch during the race, and often moved it into view to see my HR (with backlight at 50%). Halfway into the race, 7 hours in, I notice it is at 40% battery. I changed it to Ultratrac in the activity settings menu, and start avoiding using the backlight or play with it(still glancing at it often to see HR).

My race time was 14 hours 30 minutes. When I made it across the finish line, literally 1 minute after, I glance at the watch to stop the activity and it powered down.

I know actual, realistic device times are often lower than what the manufacturer advertises. Still, advertised GPS mode at 20 hours and Ultratrac 60 hours, seems I should have gotten to the end of this race with a good battery reserve. I am planning longer races later in the season so... this watch might not cut it, apparently. My iphone 7 plus in airplane mode, but doing GPS tracking, went through all of this with 30% power left and me taking some pictures and listening to podcasts on the way.

So question to the group - is this the normal battery life I can expect from this device while tracking activities? Or did I get a dud or a battery affected by it being a showroom device?

Unsure if I am just being paranoid and need to enjoy the device and go Ultratrac from the start, turn off the backlight (not needed to be honest).

Thanks all,

Juan
  • i got a firmware update in the morning for my fenix 5. i am now on 12.30 and Battery Gauge says my watch uses 0,2% pr hour. With the 12.0 Firmware my watch need 0,8 ~ 1,2 % pr hr without gps.
  • Have anyone got notified about the new beta 12.30?
  • 12.30 is a stable version, not beta.
    It will be available for all users in 1-2 days I guess /currently is available for 50% of the users/.
  • BLAU I got the 12.30 and it seems that the Firmware fixed my battery life. 0,2% pr hr. I go now for a walk (2km with GPS and do some indoor sports at my gym). I will report
  • I too just got the 12.3fw. I will be taking my 30 min gps power walk at lunch today and just reset the battery gage marker. Will be interested in what it shows for 24hr usage. Until now it was approx 12% per day
  • Former Member
    0 Former Member over 6 years ago
    Hmmm, updated to 12.3 from 12.21, back to rubbish battery drain in smart watch mode, approx 0.8 an hour, it was 0.2 previously. I'm going to roll back to the beta!
  • 45 min GPS Walk, 50 min Indoor running and 10 min indoor bicycle. 10 hours later I lost only 8,9%.
  • Thank you all the feedback, last week sent mine to garmin and could not check how 12.21 behaves, and now how 12.30 keeps to look after our batteries.

    For me is expect to arrive tomorrow the one refurbished, so will tell you with what I face off.
  • Former Member
    0 Former Member over 6 years ago
    Back to Beta version 12.21 and back to sub 0.2% per hour in Smart Watch Mode, was a shame that 12.3 made the situation worse for me (between 0.4 and 0.6% per hour), I have reported to Garmin Support and provided a Garmin Download so they can investigate further. BTW it was a royal pain in the backside to roll back to a beta SW version, I had to roll back to an official release then upgrade to 12.21 i.e. version 12 before I could apply 12.21. This meant the watch was reset to default or factory settings, the lesson, think twice if you are happy with a SW version before you upgrade, I suppose.
  • Former Member
    0 Former Member over 6 years ago
    Hi,

    I've recently bought an F5 and seem to have one that suffers from the battery drain issue, i've been waiting for the stable fw release (I have no laptop) so got excited upon reading the Garmin statement that it's been rolled out to 100% of users but my watch is still on fw12.0. Auto-update is on and I've synced the watch to GCM a few times but no update, is there something else I should be doing?

    Thanks
    Dan