Hey, I am working on modifying a circuit which is utilizing BC1 connected to a 3V battery and BC2 connected to ground. For some reasons we are thinking about adding a second battery to BC2 instead of having it at ground.
Now when power supply goes off, does it go first to BC1 and then to BC2 or whichever is max of those. Also suppose it goes to BC1 first and after a loooong time BC1 discharges, it will go to BC2. Is there a way to check when it has switched to BC2?
Suppose it switches to BC2, and in the mean time we replace BC1 with a fresh new battery, would it switch back to BC1?
Suppose it was at BC2 and power was applied and then removed, will it go back to BC2 or BC1?
I did look for these in the manuals but this information is left out and there is no App note that I could find either