I recently read a rather interesting article about Lithium Iron Phosphate batteries. Essentially, the guy bought some and had issues with them after a reasonably short period of time. It turns out what was happening is they weren’t being charged properly. His solution was to make a sort of balancer that would more or less allow each cell to be individually bypassed during charging.
This got me thinking: how do existing systems work in electric cars? Is each cell charged individually, or are they generally charged in groups? When doing something like Tesla’s supercharger, does the charger quickly switch between cells that it is charging to prevent each individual cell from overheating? How about during regenerative braking?
I really do wish I’d learned more about electronics when younger.