Battery drains overnight by 50. How to fix? Please don’t suggest to give the watch back in

4597057 21 days ago

battery drains overnight by over 50%.during the day it drains normally at the rate of one/2% per hour .how can I fix this? Please don’t suggest to give the watch back. Are there any fixes that I’ve worked for other people?

0 mmhmjanssen 20 days ago

Did it go from 100% to 50%, from 50% to 0% or something in between? If it is from (close to) 50% to 0% then it might be the same as the issue that I entered today.

0 4597057 19 days ago in reply to mmhmjanssen

It’s mostly from 90-100 to 40-50

0 mmhmjanssen 13 days ago

It looks that the battery charge indication over estimates the remaining charge towards the end of the discharge cycle. This can explain 50% drops in say ten hours. See https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-55-series/424323/forerunner-55-charge-level-indication-not-accurate