Among the many changes, the new rules would require batteries in consumer devices like smartphones to be easily removable and replaceable. That's far from the case today...
Jack and charger ports can be controlled by the phone to turn off if there is low resistance (ie water) between contacts.
A battery is harder, as it’s what provides the power to the thing that decides whether to turn off the port. Not that it’s impossible to put some smarts into a battery, to decide when to power the output. But it’s going to add a lot of complexity and bulk to do it (switching circuit, logic circuits, etc)
Jack and charger ports can be controlled by the phone to turn off if there is low resistance (ie water) between contacts.
A battery is harder, as it’s what provides the power to the thing that decides whether to turn off the port. Not that it’s impossible to put some smarts into a battery, to decide when to power the output. But it’s going to add a lot of complexity and bulk to do it (switching circuit, logic circuits, etc)