Formula E had been planning to debut its new “Attack Charge” mid-race charging system at this weekend’s race in Misano, Italy, but the system has again been delayed until some race in the future. For a couple years now, Formula E has been planning to introduce a mid-race charging stop into its races as a way to demonstrate fast-charging technology. We’ve come a long way since the first Formula E season, when originally drivers would stop in the middle of the race to swap from one car to another with a fully-charged battery. Formula E had gone with this system because it would be too difficult to set up mid-race charging or battery swapping, so they just swapped the driver from one car to the other instead. That car-swapping system was dropped with the Gen2 cars in 2018, and the faster, lighter Gen3 car which went into service last season promised mid-race fast-charging capability. But mid-race charging got pushed back last season due to problems with building the equipment required for such high charging speeds. …