(10 Jun 2017, 5:43 pm)Simmy wrote A question that has intrigued me for some time.... in order for the power sockets to work on buses/trains, do the vehicles receive a 'charge' every so often from a power source?
I assumed (incorrectly or not), that it runs in a similar fashion to the method when charging your phone in the car.
So with a bus, it runs off the battery... May be totally wrong mind!