850 Battery Life - OUCH!

The battery is replaceable.

youtu.be/Hi0ptgFaRdY

DC Rainmaker also said Garmin keeps making the prior version for a while. 

Hard pass for the 850 for me. This battery life is a HUGE disappointment. 

The 840 is still available on the Garmin USA website under "Previous Models."  www.garmin.com/.../

Did a 3h indoor Zwift ride yesterday. GPS off w. HR, PWM, SPD, Di2 sensor active. 

Turned down brightness to 0% and screen is still very viewable indoor. 

Battery burn = 6% (97-91%)...! Or should I say 2% pr. hour - equaling 50h burntime in theory! 

Maybe it's a fluke. I have now turned up brightness to 10% Let's see on next indoor ride... 

Hi! So what would you say, what´s the battery life with the 50% brightness setting and what would it be with e.g 20-30%? I have an Edge 530 which I used at 20% brightness from the beggining to maximize battery life as I ride Audax (anything betwen 200 and 1200km) and I was fine with that. I was waiting for the 850 to replace the old 530, but seeing the 10-12 hour battery life figures, I might go for the 840…

For your Audax I think you should use the 840 solar or buy the 850 and the battery pack from Garmin. Battery Pack will only work with compatible mount.

Right, I am using a Garmin power pack already as my 5 year old edge530 lost approx. 50% of it´s initial capacity. However, it’s probably still better or the same as the advertised 10-12 hours of the new Edge850 which is a bummer, hence I am tending towards the 840… I was just wondering what would be the battery life of the 850 if brightness is at let´s say 20% all the time. 

A current discussion in the 840 forum suggests the “solar” benefit is very marginal and not worth the additional cost and the slightly dimmer screen due to the solar overlay.

https://forums.garmin.com/sports-fitness/cycling/f/edge-840-series/420910/how-is-the-840-solar-charging-supposed-to-work/1973935#1973935

The 850’s 10-12 hours is likely the best you would see and downhill from there?

interesting you say your 530 has lost half its capacity , my 5 year old 530 can still last 40 hours on an Audax (backup for my 1040), with some fairly aggressive manual setting to save battery (not battery save mode) and my 3 year old non-solar 1040 still gives me 85-95 hours with the save settings, x50 will never see anything like that. I do carry a smaller size powerbank and do have a dynamo hub for the lights and usb power if needed.

I recently sold my 840 due to the text and numbers difficult to read at times. Do you think the 850 is better visually than the 840 ?

Im not that concerned about the battery times, 10/12 hours is more that enough for me. I also like the fact you can replace the battery yourself .