Though I don't live in NYC, nor New York State, they often are trend-setters for lots of examples. One trend that is not positive--the occurrences of e-bike / lithium battery fires. The media is all along for the ride it seems. It is easy for them to just repeat police and fire reports (while) not going into great details (that news bureaus are increasingly understaffed is another matter). What we can gather it is near inevitably the case that it's operator errors--wrong charger, an exhausted delivery person leaving the charger on overnight, or cheap batteries / refurbished batteries + combos of those examples listed. There is currently a push to regulate, or outright restrict batteries being put forward by the NYC City Council.
Myself? I purchase only high quality batteries, such as EM3EV or Luna cycles. But I live in an apartment building, with many others in the building. I can imagine that at some point there might be an event with someone else, in another building nearby or such and in swoop the regulators. I would love it, actually if there was a standardized and logical regulation to the ebike battery market. At the same time I don't want to be punished for bad actors.
Hence, the reason for the title LiFePo4 batteries. These are the older style lithium batteries that chemically rely on iron, different from the newest generations of lithium batteries. (And I'm not completely familiar with the chemistry involved) The newer ones are lighter, more energy dense and far more popular than the older LiFePo4 batteries--but could not be considered as safe as LiFePo4. I think both are great. But I'm torn. I am shopping for a new battery, the choices for LiFePo are few and far between. I realize I will have a great weight penalty should I choose a LiFePo4 battery--but whatever I'm not a speed demon it's for my cargo bike that can carry 450 pounds + on.
I am just looking for general advice from the JNO community on this subject--any of you who have an ear to the ground about the points I presented. Thanks.