I guess the reading comprehension has dropped in this country, He has TWO 2S packs, ran in series equals=4 cells.
NOT 1S packs. NOT 2X1S packs in series, but two individual 2S packs. he confirmed that EACH pack is 2S, NOT 1S
That's pretty simple right? You guys have at it, he'll be so confused he won't know what to do.
Just to settle this, OP can you post a picture of both batteries labels? That will show what cell count they are.