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Forerunner 955 Solar down to 10% battery from 70 over night

Anyone having the Same issue? Default watchface, No PulseOx, No Changes compared to the Last days when battery was looking fine. Also no Firmware Update which Ran over night.

0 mac27000_ over 3 years ago

Yes, I had similar problem. It happened to me 3 times. Battery drain about 40% during night. Last time it was after activity with HRM-Run sensor. Now I am testing my Forerunner without the sensor. No issues so far. Anyway I reported it to Garmin

0 GS over 3 years ago

Same issue with 255. See my post over there. Spoke with Garmin and it looks like an issue with a Connect IQ app (either Aux HR or Starbucks). Removed both and haven't had issue since.

0 Piero over 3 years ago in reply to mac27000_

Check that the hrm Run does not stay connected after use. it could be a strap problem

0 webvan over 3 years ago

Worse here, forgot to restart my 955 after a bike ride yesterday and woke up with a black screen...what a shame!

0 schnellejugend over 3 years ago in reply to webvan

Ihave same Problems. Turning the 955 of after activity is a Workaround. Some say, it is a Problemof third Party Apps or datafield (Stryd). Thats wrong in my opinion. My watch trys to connect or to pair with my Stryd even in watch mode.

I think, this bug ist from Garmin.

0 Ivan_Toulouse over 3 years ago

My watch started to download maps and that really drains the battery. Maybe that was also the case.

0 5994630 over 3 years ago in reply to mac27000_

Did you pair the HRM-Run with ANT+ or with Bluetooth? My guess is that ANT+ is fine but the Bluetooth connection type causes battery drain. I've only ever used my (non Garmin) HRM strap with ANT+ and not seen any excessive battery drain. The watch keeps offering to connect to it in Bluetooth mode, but I keep refusing.