Force Dark Mode when Battery = x %? (ie: 25%)?

[SlicePi]

Right now i have Power Savings on, even at 100%, except for Dark mode and the 'max power savings' mode.

If my battery goes below x%, i would like to turn on Dark mode to really reduce power draw.
Is there a simple way of activating this?

[LongHiker]

Yes, there is. Open phone strings -> Modes and routines. Create this routine.

[Edit] you can use whatever percentage you want.

[SlicePi]

Doesn't work:

As a test, I set it at 65% battery. 

How do I find out what is preventing it?

[LongHiker]

Do you have anything enabled in phone settings -> Display -> Dark mode settings?

[SlicePi]

 no, nothing else enabled 

[LongHiker]

You created a Mode not a Routine but it should still work. I just did the same and it worked for me. Since you are using a Mode, make sure that you don't have any other active modes which are conflicting.

As a troubleshooting step, you can boot into safe mode. If it works while booted in safe mode, you have some 3rd party software causing a conflict.

[Edit] I tried both a Mode and a Routine. Both worked for me. 

[SlicePi]

I did not create any other modes.

Would power savings count as a mode?

[LongHiker]

@SlicePi I don't know but you can try turning off Power Savings and see if you Mode works. 

[SlicePi]

So I turned off power savings and it worked.

But that defeats the purpose of making the  battery last longer

So will try with Routines

[SlicePi]

 Doesn't work with Routines either 

I'm going to assume Power savings is the cause, just like In Modes.

Any other suggestions?