Fenix 6 Pro massive battery drain

try and restart. if that fails try a reset.

Universal answer to ANY question. Not funny.

See if your pulse oximeter sensor is turned on

Hello, reset done but nothing changed.

The usual things support will have you try with a battery issue are: soft reset (hold down power key until it powers off, then turn back on), connect to a PC and delete the garmindevice.xml file then reset (the file will be regenerated), and then if nothing else works a factory reset.

If none of those have fixed it I would suggest contacting support. There may be additional troubleshooting steps they can have you do or it may be a hardware failure and they'll have some options for that as well.

have you checked sensors - is it perhaps connecting to a sensor that you aren't aware of? 

Have you tried disconnecting from your phone and trying that for a couple of hours.

Wifi - on or off? Perhaps its struggling to connect to wifi connection and draining.

And yet its amazing how often a restart can fix things and when it doesn't a reset often does.

Sure you can play around for hours checking and testing individual items or you can try for a quick restart which often fixes issues saving loads of time (of course when its a battey life issue, trying loads of options doesn't help either as you have to settings one at a time). So its universal as it usually is the quickest and easiest way to fix an issue.

I had this happen to me recently. Think it may have something to do with 16.70. mine went from 100% to almost 75% within 24 hours, and I don't have O2 sensor on at all.

I contacted Garmin and they told me to email them the GARMIN folder from the device. They emailed me back saying that they would replace it. They shipped me a new one today. I had to pay a $380.00 deposit for them to ship it. Once I receive it, I can ship the old one back and they will refund my $380.00 when they receive it.

I tried all the usual stuff (factory reset/restart/etc...) and nothing worked.

You should contact Garmin.