so to replace the cells is there de-soldering that needs to be done? this sounds like an awesome alternative! 🙂
Most common metod to connect this cells is to use sheet metal strips instead of wires, if you will build a battery from scratch a Spot Selder station is a good investment.
Super Soco batterys look different, maybe the transparent top can be unscrewed and the the cells is just clamped together, not soldered, hard to say on this picture;