Limit charging to 80%?

Try using this widget, it seems to do what you need:
"You can customize colors, the units to display and charge alarms using Garmin Connect. The charge alarm function only works when the widget is running while charging."
https://apps.garmin.com/en-US/apps/a9c9b981-1f4c-4399-a270-7d6c7317893e#0

Alternatively you can try this one:
https://apps.garmin.com/en-US/apps/4b1c1025-f1b5-4419-b2c9-fe0eeb676e85

or just charge to 100% and be done with it. life's too short to be worrying about such nonsense. if/when the battery starts to degrade from my wild and crazy life of depleting the watch to 5-6% and then charging to 100% every few weeks then so be it. by the time i start to notice i'll have my eye on the next model anyway

its a start, so thanks for the suggestion. 

I was more hoping for an integrated version, there is so much the watch can do, this is one of the easiest functions to implement, Garmin should have just done it years ago. Especially when they also recommend to not charge over 80%

can you identify a source where garmin says to not charge over 80%? internet search comes up empty and my consultant chatgpt says while users in forums have said it, "However, I couldn’t find any official statement from Garmin on this topic"

Skyewalkr said:

can you identify a source where garmin says to not charge over 80%?

„Many Garmin products use rechargeable lithium ion batteries. These batteries are not replaceable which increases the importance of proper battery maintenance through proper charging and storage practices.“

Best Charging Practices:

• Follow the 80 20 charging rule.
  
  • Lithium ion batteries prefer to live between a charge of 80 and 20% as it is less stressful on the battery.
  • They prefer not to be overcharged or depleted of charge; especially for a lengthy period of time.

https://support.garmin.com/en-US/?faq=UsydR0UFGu6xKkqjLZaem8

Thats the way reckless people handle the ressources of the planet - its not only handling a watch, but a lifestyle in common. Anybody should know better by now, but some refuse to learn anything. God bless our children.

Thats the way reckless people deal with the ressources of the planet - its not only handling a watch, but a lifestyle in common. Anybody should know better by now, but some refuse to learn anything. God bless our children.

There is a good article about li-ion and li-po batteries here: https://batteryuniversity.com/article/bu-808-how-to-prolong-lithium-based-batteries

I try to keep batteries between 80 and 20% but don' t pay close attention to it, and in my experience with earlier Fenix models batteries do well for 4-5 years unless they were run down to empty and then stored for a long time or stored at a high temperature.

Yeah, same here. I always charged my Fenix 5 to 100% and sometimes drained it to 0% during hiking. It lasted four years without any problems. I sold it and now it has a new happy owner.. What's more, I've noticed with Fenix 5 and now with F7 that when I charge it to 60 or 80%, the battery drains a bit faster on a daily basis. It's like it overestimates and then discharges quicker. Unless you don't plan to use your watch for more than a decade, I wouldn't worry about charging to 100%. After all, it's not an Apple Watch, you charge it every other week, not every day. I guess draining to 0% is much worse.

https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-7-series/287049/how-much-do-you-let-the-battery-go-down-by-before-recharging