The average battery life for the Suunto Core is 12-18 months depending on usage. Features like the compass and backlight consume more power than other features, so using them frequently or for extended periods decrease battery life.
When the low-battery warning symbol appears on the display, 5 - 15% of battery capacity still remains.
Change the battery of your watch
For changing the battery, send your watch to an authorized Suunto representative for service.