Venu 3 - After most recent upgrade battery life drain issue - Down 35% battery in less than 19 hours with 1 activity of 2 hours (non GPS) recorded.

As of right now I just reset to default settings - I will recharge to 100% and monitor.

After past upgrades the solution appeared to be to switch off your watch for up to 30 seconds then switch it on again. The restart from the upgrade process is insufficient.

I will do this as well right now - Will recharge to 100% and then see what happens, thanks.

I experience exactly the same. Battery life was fine until 10.20, now I have a battery drain rate of 1.35% per hour.

I even did a master reset but it didn't help. I hope that this issue gets fixed soon. My three year old vivoactive 4s has a longer battery life than my venu3 right now... 

Battery life on my Venu 3 is suddenly very poor.  Used to be really good, i'd get 7 to 10 days between charges.  Today, i'm losing 10% in an afternoon, sitting at my desk. AOD is off, always has been.  Not sure what changed, but something is draining the battery very quickly.  Any advice?

Same here. It used to be OK till about a month ago, and now it lasts around 2 days. I removed all apps and watch faces, reset, etc., but it keeps the same. Hope Garmin fixes this soon with a firmware upgrade, otherwise I will ask for a return (too far away from the battery life promised).

You might have already tried these suggestions, but just in case have a look here - Troubleshooting guide for high battery drain

Something my Venu 3 would have very quick battery drain for no reason. It's happening not very often,  probably once in 2 months but hard restart always help.

I do restart by pushing and holding top button on the right side of watch for about 30 seconds until screen turned off(black). After another 30 seconds I push the same button for about 2-3 seconds  to turn watch on. 

Yes i noticed the same. I really hope the next Update fix this Issue.