That's true. A vehicle-grade battery pack should also already come with the wiring built in so you can charge and discharge all the cells from a single point w

That's true. A vehicle-grade battery pack should also already come with the wiring built in so you can charge and discharge all the cells from a single point without having to make your own harness. Still, though, I'm not convinced buying a used Model S battery pack is a good deal unless you have an application that specifically needs it.