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    Race S: Extremely high battery use rate

    Scheduled Pinned Locked Moved Suunto Race S
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    • brechtvbB Offline
      brechtvb Bronze Member @withManish
      last edited by brechtvb

      I have a Race S, and 2 weeks ago i did a factory reset because of something, i don’t recall what.

      But now the battery also goes down much faster than it used to, equivalent to what other people here are reporting: 7-10% per night.

      Bluetooth announce is off
      i now even put oxygen stuff disabled (for night monitoring)
      and DND for the night

      withManishW 1 Reply Last reply Reply Quote 0
      • S Offline
        Sieunhan_Binh
        last edited by

        Right now, the Suunto Race S has fewer features than a Wear OS smartwatch, yet its battery life is even worse. It’s truly disappointing.

        withManishW 1 Reply Last reply Reply Quote 1
        • withManishW Offline
          withManish Bronze Member @Sieunhan_Binh
          last edited by

          @Sieunhan_Binh said:

          Right now, the Suunto Race S has fewer features than a Wear OS smartwatch, yet its battery life is even worse. It’s truly disappointing.

          I did that a few times already without any improvements. And the end result is that you spend more time reconfiguring the watch. 🤡

          www.withManish.com

          1 Reply Last reply Reply Quote 0
          • withManishW Offline
            withManish Bronze Member @brechtvb
            last edited by

            @brechtvb said:

            I have a Race S, and 2 weeks ago i did a factory reset because of something, i don’t recall what.

            But now the battery also goes down much faster than it used to, equivalent to what other people here are reporting: 7-10% per night.

            Bluetooth announce is off
            i now even put oxygen stuff disabled (for night monitoring)
            and DND for the night

            As I mentioned earlier, even when I use the watch in power-saving mode, it hardly lasts 5-7 days. They really messed up everything.

            www.withManish.com

            2 1 Reply Last reply Reply Quote 0
            • 2 Offline
              2b2bff Gold Members @withManish
              last edited by

              @withManish I get to about 4 days easily. With AOD and notifications enabled. And about an hour of GPS tracking per day…

              Suunto Race S
              Garmin Epix Pro

              S S 2 Replies Last reply Reply Quote 0
              • S Offline
                Sieunhan_Binh @2b2bff
                last edited by

                @2b2bff Do you have sleep tracking and 24/7 heart rate monitoring enabled?

                J 2 2 Replies Last reply Reply Quote 0
                • J Offline
                  jobtoll @Sieunhan_Binh
                  last edited by

                  Bought my Race S in December 2024. With no activities recorded but with sleep tracking turned on the battery went from 98% to 73% in 25 hours. This does not seem excessive.

                  S 1 Reply Last reply Reply Quote 1
                  • S Offline
                    Sieunhan_Binh @jobtoll
                    last edited by

                    @jobtoll The manufacturer claims that if you train with GPS for 5 hours a week and keep heart rate and sleep tracking enabled, the battery will last at least 5 days. However, I’m only getting 3 days, which is really disappointing.

                    1 Reply Last reply Reply Quote 1
                    • 2 Offline
                      2b2bff Gold Members @Sieunhan_Binh
                      last edited by 2b2bff

                      @Sieunhan_Binh said:

                      @2b2bff Do you have sleep tracking and 24/7 heart rate monitoring enabled?

                      Indeed, I have

                      The manufacturer claims that if you train with GPS for 5 hours a week and keep heart rate and sleep tracking enabled, the battery will last at least 5 days.

                      Where have you read this?

                      Suunto Race S
                      Garmin Epix Pro

                      1 Reply Last reply Reply Quote 0
                      • withManishW Offline
                        withManish Bronze Member
                        last edited by

                        Screenshot 2026-08-15 at 10.27.51 AM.jpg

                        How much battery life do you get? This is what is claimed on the website.

                        I have a setup such as “Daily heart rate off, display wakes on wrist-raise”, yet I get 7 days, hardly forget even 10 days.

                        www.withManish.com

                        S 1 Reply Last reply Reply Quote 0
                        • S Offline
                          snow* @withManish
                          last edited by snow*

                          @withManish said:

                          How much battery life do you get? This is what is claimed on the website.

                          during activity:
                          ~3.2%/h, multi-band, bt enabled for chest strap H10, rise to wake, 1 S+
                          ~5.2%/h, multi-band, bt enabled for chest strap H10, rise to wake, using only map view with bottom field enabled

                          watch mode:
                          ~8/9%/day, sleep enabled, 24/7 HR, HRV enabled, SPO2 disabled, notifications disabled, display always off, wifi & discovery disabled.

                          ymmv

                          Race S Ti.
                          Spark

                          withManishW S 2 Replies Last reply Reply Quote 0
                          • withManishW Offline
                            withManish Bronze Member @snow*
                            last edited by

                            @snow 5, just as a watch, it hasn’t been working for 7 days; generally, 5-6 days max. This all started after the firmware upgrade. Otherwise, it used to give 10+ days on a charge as a watch, and with 10+ hours of GPS-only (no heart rate), it used to give me 7 days of battery easily. (Don’t have Bluetooth on for any notifications)

                            I have noticed that 2 to 3 hours of GPS use drains 6-8% of the battery.
                            I have already lost hope with Suunto on this matter.

                            www.withManish.com

                            1 Reply Last reply Reply Quote 0
                            • S Offline
                              Sieunhan_Binh
                              last edited by

                              I’ve noticed that significant battery drain is caused by the 24/7 heart rate monitoring mode. Previously, the watch would measure heart rate every 3 to 5 minutes; however, after the software update, it monitors continuously—24/7—without any breaks unless you take the watch off your wrist.

                              1 Reply Last reply Reply Quote 0
                              • S Offline
                                sindavide @2b2bff
                                last edited by

                                @2b2bff
                                Does this look a lot to you?

                                2 1 Reply Last reply Reply Quote 0
                                • S Offline
                                  sindavide @snow*
                                  last edited by

                                  @snow
                                  No way. One night with hr enabled is about 10% batter.
                                  One full day with 1 to 2 hrs activity with gps is some 25%-30% at least

                                  1 Reply Last reply Reply Quote 0
                                  • 2 Offline
                                    2b2bff Gold Members @sindavide
                                    last edited by

                                    @sindavide said:

                                    Does this look a lot to you?

                                    It is not ample, but given the small size and AMOLED with AOD it is ok. My Epix Pro 47mm that has about the same screen size, but a bigger housing, gets me one additional day…

                                    Fenix 6S Pro, with a smaller housing, but MIP has been another day extra with about the same usage after 3 years of using it…

                                    Suunto Race S
                                    Garmin Epix Pro

                                    S 1 Reply Last reply Reply Quote 0
                                    • S Offline
                                      sindavide @2b2bff
                                      last edited by

                                      @2b2bff
                                      But this is not the point. The point is that compared to first FW versioms now battery is crap. Before it was ok, now it not

                                      2 1 Reply Last reply Reply Quote 1
                                      • E Offline
                                        elbee
                                        last edited by

                                        Besides the quite frequent 15% battery usage in 1 night (charge to 100% in the evening, wakeup with 85% in the morning), which can be mitigated by frequently rebooting my watch I now also had a annoying high battery usage during a hike.

                                        I started the hike with 48% and a expected runtime of 13 hours. Aod is off. Gnss settings default and used navigation.

                                        After almost 7 hours the watch went into battery emergency mode: no gps, no map, no heartratesensor. (The last one I couldn’t care less, but no navigation was quite annoying)
                                        I ended the hike just over 7 hours with 1% left. A couple of minutes later it just shutdown.

                                        This is really far from the advertised and expected time.

                                        (Unfortunate suunto doesn’t have ‘resume later’ so during stops I count pause the time but not the gps)

                                        Suunto t3c | Suunto Ambit 3 sport | Tomtom runner 2 | Garmin forerunner 935 | Garmin forerunner 965 | Suunto race s
                                        Stryd | Bryton Gardia R300L | Polar H9 | Polar oh1+ | Wahoo bolt v2 | 4iiii precision 3

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                                        • 2 Offline
                                          2b2bff Gold Members @sindavide
                                          last edited by

                                          @sindavide said:

                                          The point is that compared to first FW versioms now battery is crap. Before it was ok, now it not

                                          For me and my usage it is now 4 and has been 5 days… not a big issue - for ME…
                                          “Crap” is different…

                                          Suunto Race S
                                          Garmin Epix Pro

                                          André FariaA 1 Reply Last reply Reply Quote 1
                                          • MiroslavaM Offline
                                            Miroslava
                                            last edited by

                                            Same here, yesterday evening 100%. Today early morning after 7 hours only 85%. I try soft reset and i will see

                                            withManishW 1 Reply Last reply Reply Quote 0

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