My watch is showing 27d of battery. Im on the 6 Sapphire, and have also noticed higher drain recently. Not as high as 27%, but maybe 10% per day which is still on the higher side compared to previously. Fully charged Friday night, 65% Tuesday morning. Only went used it to run for an hour other than daily wear. Why is My fēnix 7 or fēnix 7 Pro Watch Battery Draining Quickly? | Garmin Customer Support. FREE GROUND SHIPPING ON ORDERS $25 AND UP. Garmin Support Center. Garmin Support Center is where you will find answers to frequently asked questions and resources to help with all of your Garmin products. Fenix 3 battery draining too fast? Fenix So last week I bought a second hand Fenix 3 (standard version) from July 2016. The watch is pretty decent and was behaving well in every aspect but battery life. My previous watch was a FR235 that gave me, on average, 4 to 5 days of battery life on a light use (2 activities or so) . Just restart your watch, it happens randomly. Having the same issue for the past few days, I believe it's started after upgrading to v21.00. (Fenix 5x Sapphire). Fully charged the watch last night, and after 8 hours I'm already down to 75%, with no activity and no button clicks etc. Just restarted the watch. Hope it solves the problem. I have two tests with the navigation mode and I have followed a track for 1 hour, spending almost 6% (aprox. 17 hours of battery life), in this navigation mode and following a track. These 17 hours are much less than my Fenix 5x plus working under the same conditions. Battery drain after charged. Martin_Otcenasek over 5 years ago. I have discovered new issue on my FR645M. After complete (100%) charge my watch has very quick battery drain, for example 7% / hour. I always must restart watch, after that discharging is normal. I use original charge cable with AC adapter from my Samsung Phone. A dedicated community for Garmin users to ask questions, provide answers, and share feedback. Garmin Forums. Fast Battery Drain. 6928399 3 months ago. My 2.5 year old Vivoactive 3 is usually great with battery life, lasting several days even with activities being recorded. Usual battery life is around 10% drain per day without activities. Several times in the last year or so I've experienced a sudden battery drain which has always been fixed by restoring factory settings. .

garmin fenix 3 battery draining fast