Tom_Tom
(Tom Tom)
36
All these cells are designed to be embedded into devices, with sophisticated battery management systems.
The bare, flat top cells are precise and consistent, and designed to be connected together with spot welded tabs.
But then everyone and their dog sticks on button tops, “protection” circuits, re-wraps over the top of the original until it won’t even fit, or just defrauds.
However Flashies and Vapers have latched onto them, and so we are where we are.
The latest “fashion” appears to be the Tesla 21-70 cell. Which I am sure is very good, but the real ones will be hard work for flashies. Al positive contact, recessed, no easy solder blobbing, no magnets. Maybe scrunch up some Al foil and pray for some contact.
It’s amazing that we have come so far with these cells, which were never, and are still not, made for consumer use. That’s only down to third parties who have fixed them up and distribute them to us.