Those rules have nothing to do with 9/11, they are based on risk of fire due to ...

mitchty · on Oct 31, 2017

That and limiting the amount of energy that could be released if there is a defect.

I don't think i'd want a 1Kwh battery on a plane.

taraharris · on Oct 31, 2017

http://www.ehang.com/ehang184

This thing might blew my mind. It's a battery-powered drone that you can fly in!

I don't know exactly how big the battery is, but my best guess is that it's bigger than 1Kwh...

It's not vaporware either. There are lots of videos of this thing flying!

mitchty · on Nov 1, 2017

Presumably its not a lithium ion battery that could have been (ab)used that just randomly happens to be in an airplane.

Purpose built batteries versus a general purpose battery that could have been engineered to different tolerances are a bit of a different beast.

taraharris · on Oct 31, 2017

I have never seen a laptop catch fire, on a plane or otherwise. While I have seen a few stories that report fires here and there, I really don't think this is a big issue, and I'd feel comfortable riding on a plane with lots of 1kWh batteries on it.