Are Plus / Pro parts compatible?

While the Plus’ chamber is 510-threaded, we do not recommend pairing it with non-Plus batteries, as this may compromise the lifespan and functionality of both the battery and chamber. The Plus chamber requires an extreme level of power and strength to deliver the large, focused heat as it's designed -- that power and strength can only be provided by the carefully calibrated Plus battery.

You should not use the Plus chamber with any other batteries. Replacement Pro coils however, will still work great on a new Plus battery!