Battery Drain on Forerunner 970 in the last month

Question

Hello, 
 In my last month or so I am having issues with battery life in my Garmin watch. 
 I own it for about 5 months now, and first 4 months were great (about 12 days battery life), but recently this has dropped drastically to 30 hours of battery life. 
 
 AOD - Off 
 Pulse Ox - On Demand 
 WiFi - Off 
 Sleep Mode - On (12AM-8AM) 
 Not used in any activity, so no GPS usage 
 
 In Battery info is saying that almost all battery usage is from "System" -> "Other" 
 I have tried: 
 
 Update to latest software (current Software Version: 16.28) 
 Let battery drain itself to 0% 
 Force restart the watch to stop any background process 
 Reset all settings to Factory state (without erasing data) 
 Use default WatchFace

spruitp · Answer

Maybe a hardware issue? I charged to 100% on sunday. Did a few runs and walks about 3,5 hours active. Wifi and ble on SPO with sleep on. Today. (Fridaymorning) stillon 52%

Garmin - KS · Answer

If you&rsquo;re seeing some variation in battery life, it's good to keep in mind that the Forerunner 970&rsquo;s estimates are based on specific default settings. Things like Always On Display, frequent notifications, Pulse Ox, longer GPS activities, etc. can definitely shorten that window. This article breaks down the conditions used to determine the estimated battery life: Forerunner 970 Battery Life Assumptions 
 Many of you may have already tried several troubleshooting steps, but if you haven't yet, I suggest giving this article a quick review. It provides information on what impacts the battery most, and offers suggestions to adjust some settings to achieve longer battery life in-between charges: Why Is the Battery of My Garmin Watch Draining Faster Than Expected? 
 If you&rsquo;ve already gone through those steps and are seeing unusually high drain (e.g., large drops overnight with minimal use), please let us know.