Battery Life Issue not yet fixed in release 17.26.

How many hours left do you see with the device at 100%? I used to see around 48 with brightness at 10% and GPS+ now dropped to 18…

I would also like to downgrade my garmin but I don't know the procedure.

Je ne pense pas que cela sois possible

Only seeing about 14.  But clearly I’m using it at around the same rate I used to get when it said 36. I never really looked at it once I saw the 36 a few times and what making changes did. Now really I only ever look at the % it says is left.

I’ve done 7 hours riding since charging to 100%. It now says 84%. That makes it about 43 hours at that rate.  It now says 13hours on the battery screen. 100% was 14. So 1 hour actually gave me 7. 

But why downgrade?  In reality it gets the same performance as before. Only that one number changes and is clearly wrong. Just look at the actual % left

I've found that this update only caused an estimation issue. I've compared some of my pre and post 17.26 update battery usage and both pre and post 17.26 update used roughly the same ~2% battery per hour. Running 3 sensors (heart rate, Di2, power), screen brightness set to about 10%, and best GPS accuracy.  Both pre and post update pointed me to about 40-50 hours battery life.

Under 17.26 my device estimates 9h with 85% battery

I could have been more clear, my estimated battery life does show incorrect, but after calculating the battery life estimate myself with actual ride data like time on/battery percentage used, my "actual" life was the original 40-50 hours, not the number the Garmin shows.

Pareil pour moi avec la maj 17.29 que j'ai fait aujourd'***, avec 50% il m'indique 7h00 ce qui fait très peu mais je pense que le chiffre restant est erroné, il faut tenir compte du pourcentage.