alt Hacker NewsThat is very considerate of you, but my bike has a very small standard battery (in comparison). Still, it would be good if trains offered a way to store the bikes in a special place away from people (at the end of the train for instance) so this won't be an issue.
Have a look at some videos of what it looks like when a pack lights off in an enclosed space. You'll come away equal parts impressed and horrified, especially at the speed and the intensity.