Abstract: A system for determining and accounting for the service of an electric vehicle provided with a battery which has an electric-current supply network, a pulse generator connected between this network and the vehicle for generating a time-spaced sequence of accounting pulses representing at least the value of electrical energy delivered to the vehicle, a pulse counter connected to the pulse generator for counting pulses derived from the pulse generator over a time interval corresponding to that for which the vehicle is connected to the network, and an evaluator in the form of a deductor on said machine responsive to the count of the counter and connected thereto for registering the value at least of electrical energy supplied to said machine.