New York City wants lithium-ion e-bike batteries to be stopped at the border when they donโt meet national safety standards after rash of deadly fires::After a series of deadly fires.
Modern electric wiring is grounded and has a proper safety switch if and only if the installation is done correctly. In the same wake your gas pipes in the house are safe if and only if installed correctly and burning appliances like a water heater are only safe if and only if regularly inspected and maintained.
The same is true for Lithium Ion batterys. The technology is not inherently unsafe, in the same way that house installations arent inherently safe. It is merely that the shitty ones and their chargers are not produced following the existing standards on how they need to be designed and maintained and for house installations there is inspectors and other means to enforce standards.
The city forbidding the import of these is the same as them having inspectors to make sure buildings are built according to code.