Hi, you should not have the battery on both input and output; it should be only on input, the process you show could have another product called battery life cycle (or so) which you use for the calculation of the product system, and then you have the process that taes care of the used battery which is modelled so that it produces the battery (on output side, with negative sign).
I hope this is clear?
Best wishes,
Andreas
- and this will become more intuitive in openLCA 1.7