To prevent reverse voltage flow

[oppel]

We will create a battery bundle with the values ​​we want by connecting 2 batteries in series. We do not want the energy transfer between these serially connected batteries to be equal, and we do not want one to flow into the system more than the other. We do not want any short circuit events to occur. What kind of a PCB circuit can be created for this or would it be appropriate to use a diode?

[Zero999]

I can't understand that word salad.

What's the application?