[asymptonic]

I'm pretty sure this is a bad idea, but would like to understand all the cons. If I had two packs, each made up with different manufacturers modules (but very similar if not identical chemistry), what would go horribly wrong. Presumably I'd need the different modules in different cell groups on the BMS, or two BMS (and all that terrifying complexity) for starters, but I'm sure there are other reasons this isn't done.

 

[asymptonic]

Can you elaborate on why not to stack serially?

 

[asymptonic]

I get your meaning, but I would expect the BMS to stop before that happens, but then you'd have a bunch of cells undercharged. Okay good enough, no mixing for me.