Abstract: A casing (20A, 20B) can contain at least one apparatus (10) including a battery (12). The casing includes connection means (22) adapted to a connector (11) of said apparatus (10). The casing (20A, 20B) can be placed in a case (30) including energy storage means (32). The case (30) includes wireless means (35) adapted to transmit energy to wireless means (25) of the casing (20A, 20B) that are adapted to receive the energy. The case (30) includes holder means (37) for holding the casing (20A, 20B) in at least one predetermined position while mobile.

Abstract: The invention relates to an electric charger (1) comprising: an electrical energy storage module (3) having a connection interface (31) to an external battery (41, 42); an electrical generator (2) the energy supply for which can be controlled, in order to supply electrical energy to the storage module (3), at an operating point; and generator (2) control means (5) which are designed to adapt the operating point of the generator (2) when it is supplying electrical energy to the storage module (3) in accordance with information (530) relating to the state of the storage module (3) and information (520) relating to the state of the generator.