Suunto is committed to ensuring that this website achieves Level AA conformance with the Web Content Accessibility Guidelines (WCAG) 2.0 and achieving compliance with other accessibility standards. Please contact Customer Service at USA +1 855 258 0900 (toll free), if you have any issues accessing information on this website.
Find a dealer/service center

Suunto Ambit3 Run User Guide - 2.4

Replacing Smart Sensor battery

Replacing Smart Sensor battery

The Suunto Smart Sensor uses a 3-Volt lithium cell (CR 2025).

To replace the battery:

  1. Remove the sensor from the belt strap.
  2. Open the battery cover with a coin.
  3. Replace the battery.
  4. Firmly close the battery cover.

replacing smartsensor battery Ambit3

icon-accessories-and-spare-partsactivity_tracker_largeadaptive_training_guidance_largealtimeter_largebarometer_largecaution-iconcompass_largeicon-connect-and-update-your-watchconnectivity_largecustomize-iconicon-dealer-locatorextra_long_battery_life_largefaq_icon_largefitness_level_largefits_most_wrist_sizes_largefused_track_largegps_navigation_largegps_via_phone_largeguides_icon_largeheart_rate_training_zones_largeicon-how-to-use-videoshunt_and_fish_largeintelligent_battery_technology_largelong_battery_life_largeicon-newsletternote-iconicon-online-service-requestoutdoo_functions_largeover_80_sport_modes_largeicon-product-registrationProduct_registration_icon_largerepair_icon_largerepair-serviceroute_navigation_largesapphire_glass_icon_largeicon-service-locatorsleep_largeicon-software-updatesstress_largeicon-supporticon-suunto-movescounttested_tough_largetip-icontouch_screen_largetraining_plans_largeicon-training-worldicon-tutorial-tuesdaysuser-guideicon-user-guide-topicvibration_largevideos_icon_largewarning-iconicon-warranty-informationwater_resistant_100m_largewater_resistant_30m_largewater_resistant_50m_largeicon-webshop-faqwireless_sync_largewrist_based_heart_rate_large