MID warning message: Low Battery Turn Power Off

Sorry to post here, but the Camry forum is not the same caliber as Prius Chat.
I have a 2025 Camry LE which has the 5th gen hybrid system and Safety Sense 3.0 so hopefully very similar to the new Prius models.
When I finish a drive and turn off the vehicle by pushing the power button some systems naturally stay active until I open a door to exit.
If I shut down the vehicle and stay seated without opening a door, after 60 seconds I get a chime and a warning message in the MID - Low Battery Turn Off Power.
Is this normal?
How would I shut off power if I already turned the vehicle off?
If I open a door, the message goes away.
I checked the 12v battery and proved that it charges in ready mode.
Toyota seems to not keep these 12v batteries fully charged since they do not have a starter motor draw on them. I know this from my 4th gen Prius Prime.
Thanks

 

BiomedO1,
Thanks for the reply. I did measure the CCA performance.
Here is what I think I know so far:
With the battery at its normal (low) state of charge it takes exactly 60 seconds after shutting off the vehicle for the "Low Battery Turn Power Off" warning to appear in the MID.
The owner's manual does not list this exact warning message, so no help there.
I believe that this warning message "Low Battery Turn Power Off" concerns the 12v battery, but I'm not absolutely sure.
My 12v battery measured 11.69v which is very low.
But even at 11.69v, the 345 CCA rated OEM battery tested at 484 CCA.
CCA is measured at 0 deg. F and my garage is warmer at about 45 deg. F, so it should test higher.
After charging for 140 minutes at approximately 3 amps, the voltage registered 12.43v (so not fully charged yet) and the CCA tested at 622a.
With this much higher state of charge it still takes exactly 60 seconds after shutting off the vehicle for the "Low Battery Turn Power Off" warning to appear in the MID.
With the car in ready mode, the voltage tests at 14.33v, so the system is definitely charging the 12v battery properly.
I will test again when the battery is fully charged, but I don't think that there is a problem.
My 2017 Prius Prime 12v battery voltage always tests low. My tester always tells me to recharge and test again.
The 12v battery is able to be charged by the traction battery whenever the car is in "ready" mode.
I have to believe that Toyota made a conscious decision to not keep the 12v battery in a high state of charge.
Since there is no starter motor high amperage load, it may not be necessary.
Just like we don't keep our traction battery fully charged for extended periods on the plug-in hybrids, maybe they decided that the lower state of charge might extend the life of the 12v battery?