NOVELTY - The device has a charger and a set of housings (3), where each housing comprises an opening opened towards exterior to introduce and/or withdraw a battery (2). Each housing is provided with an individual metal door (6) to close the opening. The door co-operates with a locking system (5) that is controlled by a control unit and maintains the door in a closed position, so that the access to the housing is prohibited except when the control unit deactivates the locking system. The locking system includes an electromagnet and a permanent magnet.    USE - Device for recharging electric batteries of a power-assisted light vehicle e.g. power-assisted bicycle or electric scooter.    ADVANTAGE - The door co-operates with the locking system that is controlled by the control unit and maintains the door in the closed position, so that the access to the battery housing is prohibited except when the control unit deactivates the locking system, thus restricting the access to the batteries to legitimate users of the batteries, and preventing any third party from accessing the housings containing the batteries, and hence avoiding theft and malicious acts, and allowing the installation of the device in free-service mode in public place. The housings can be configured to receive various types of batteries, without requiring the adaptation of the door and the locking system which are appropriate for various types of batteries accepted by the recharging device. The locking system is provided with the electromagnet and the permanent magnet, so that the locking function is simple to realize and is reliable. The design of the device enables establishing adequate electrical connection between the device and the battery in a simple and effective manner, and enables detecting the presence and/or absence of the batteries in a simple and reliable manner. The device is easy to maintain.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for charging and delivering electric batteries.    DESCRIPTION OF DRAWING(S) - The drawing shows a detailed front view of a door zone and housing of the battery recharging device.    Battery (2)    Housings (3)    Locking system (5)    Metal door (6)    Luminous indicator (7)