I have no doubt that Proteus is super capable. The issue with any software that old (like PADs or even Altium to an extent) is that they get cemented into specific industries and then are fearful to make any big changes that might rock the boat and piss off their corporate customer base (which usually hold hundreds of seat licenses). This ends up with the code base and feature-set stagnating because ‘it’s not broke, don’t fix it’ and the thought of investing R&D into a secondary product isn’t as appealing to most of these companies that already have a foothold in the market & a solid primary product offering. Most secondary efforts fail.
Good example of how this can be addressed: Autodesk Inventor & Auotdesk Fusion. Inventor exists in a similar state as it’s release- They have improved functionality and removed bugs, refined UI, but they don’t veer off the beaten path far. They spun up the Fusion project as an experimental platform to test out new/weird/notoriously buggy features and it eventually grew into its own standalone CAD software (it was originally browser based when people were trying to figure out what to do with web apps).
Now there’s even a Fusion ‘tab’ in Inventor, that brought over compatible/experimental features proven out in Fusion into Inventor. It’s an interesting upstream/downstream model that actually worked. Fusion & Inventor started as cousins and are now closer to half siblings.
On FlexPCB Battery topic: Here’s another one, a 12S4P 21700 I worked on with @Kaly (his batteries are prettier than mine tho)
One thing to note on these is that the PCB is not carrying any actual load current, only the balance traces carry any current (bleed off level) and they’re thick enough to handle it. The nickel is welded in place, then folded over onto the next P-group nickel, welded, & soldered in place.
Anyway, Non-consensual TED Talks are my kink. Sorry.