Cellphones have Lithium batteries. I hope you have a durable suit of body armor and a good helmet... :-)

I totally get the dangers large and irresponsibly repaired LiON batteries pose, but there needs to be some leeway. Read up on the regulations being proposed by the Dept of Buildings and the FDNY for guidance. My building is struggling with the same issues. Our managing agent is working on something for all their buildings.

I wish I had more details to share, but this is a relatively sudden development. I hope some of the other posters on here can add to the common wisdon.

I'm sorry I can't add anything to the conversation. I too am looking for an answer. We have just banned e bikes in the garage. Only one person has requested an exception. Now I'm thinking he has put the e bike in his apt. NOW WHAT?

Our building is in the same boat. As Steven424 noted, you can't ban lithium-ion batteries outright, as they are the common rechargeable used in practically everything - including the laptop computer on which I am typing this.

At the same time, we can't count on the City Council to do anything meaningful to protect us. They have just passed some timid and naive bills that are unlikely to have any real effect on the problem. See this article, along with the comments at the bottom that point out the painfully obvious holes: https://gothamist.com/news/council-cracks-down-on-lithium-ion-batteries-amid-spike-in-e-bike-fires

Our board's current thinking is to ban eBikes and eScooters outright, with no exceptions, and regardless of where in the building they are stored. The risk is just too high. We're looking to do this very soon. We're also working with our managing agent to see what plans they develop for their other buildings.