Instinct 2x solar setups for ultimate battery

9308278 said:

I've checked the manual on vattery life and it says that you have ultimate batterylife in smartwatch mode with heartrate monitor and other monitoring enabled.

If by "ultimate" you mean infinite, then that is not what the manual says.

The manual says 40 days in smartwatch mode and infinity with the support of the sun (daily 3 hours with 50,000 lux).

here are some tips about how to maximize battery life : 

https://www8.garmin.com/manuals/webhelp/GUID-31D23DBB-57C2-4DF7-A0C9-8D1A00AB4BE7/EN-US/GUID-7A30002F-B50A-4F1C-84CA-0EADBF4A9759.html#:~:text=To%20extend%20the%20life%20of,(Changing%20the%20Screen%20Settings).

9308278 said:

My watch says it has 90% battery and that is 36days

Your setting for "smartwatch mode" is obviously set correctly.

Yes, oke good to hear that it's set correctly.  But yesterday my sunlight indicator said 115k and i was outside for more then 3 hours. Today it has 15.5 k (not that sunmy) but the average is 57k.

So why is it still going down?

9308278 said:

So why is it still going down?

I do not know your exact conditions. The solar panel is not primarily intended to actually charge the watch. It is more designed to support the battery to reduce the discharge. However, you should see a slight increase in the % reading in smartwatch mode if you point the solar panels DIRECTLY at the sun for a period of time (1/2 to 1 hour). If you start an activity profile with GPS, this will not be the case.
There are many factors that affect the power requirements of the watch. Even if you have installed a watchface from the app store, the consumption will be higher.

Mmm, that's strange i didn't install anything yet. But i'll check the tips you sent in your first post. But even yesterday the percentage went down

You need 3hrs in 50k lux conditions (150k lux per day) to extend the battery life by one day (therefore unlimited battery).

FYI the Garmin quoted Instinct 2X Smartwatch battery life of 40 days includes use of basic sensors (eg steps & HR) but excludes SPO2 and continuous phone BT connectivity.

However for those who are content to have uninterrupted sleep then sleep mode can be used to switch display to low power mode and disconnect BT for reduced overnight power consumption.

Apart from Power Manager check out System / Sleep Mode settings (you can set a schedule)

dugeem.david said:

the Garmin quoted Instinct 2X Smartwatch battery life of 40 days includes use of basic sensors (eg steps & HR) but excludes SPO2 and continuous phone BT connectivity.

This is true for SP02 (pulseOx), but not for Bluetooth phone connection. The specified 40 days are "smartwatch mode", and this INCLUDES Bluetooth connection to the phome.

dugeem.david said:

includes use of basic sensors (eg steps & HR)

Aside. Steps are always counted in 24/7 mode. This cannot be deactivated there. You can deactivate the HR sensor. But not the step (motion)sensor.

bluefish said:

This is true for SP02 (pulseOx), but not for Bluetooth phone connection. The specified 40 days are "smartwatch mode", and this INCLUDES Bluetooth connection to the phome.

I had previously assumed exactly this. However on my 2x the Smartwatch battery life when fully charged shows 33 days. When I disabled BT it went up to 41 days. Of course this might be a bug.

Then something else is wrong with your settings. Smartwatch mode is INCLUDING Bluetooth.

You may have increased the brightness of the backlight. This also has an effect on the prognosis.