Vending machine

The machine has a set of electric loads connected with a controller and operated during a vending operation. An operation battery (2) supplies electricity to the electric loads, and a charging battery (8) is connected with the operation battery by a charging pump circuit (10). The controller is arranged such that the operation battery is completely recharged by producing a connection with the charging battery over the charging pump circuit after extracting electricity from the operation battery. A reserve battery (4) is connected parallel to the operation battery.