TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Battery: In the battery, the capsule is compatible with pneumatic transport along a pipeline. It further comprises electrically rechargeable cells encapsulated within the capsule, where the capsule is removable and replaceable with respect to the battery. It further comprises electrically interconnected capsules each with electrically rechargeable cells in electrical contact encapsulated, where each capsule is compatible with transport along a pipeline. The capsules comprises first and second types of capsules, the first capsule type including an electrical terminal connector configured to cooperate with the electrical terminal connector of another first capsule type to provide a series connection and the second capsule type including an electrical terminal connector configured to cooperate with the electrical terminal connector of another second capsule type to provide a series connection, where the electrical terminal connectors of the first and second capsule type are configured to connect the first and second capsules in parallel. The capsule comprises first and second concentric electrical terminals at either end. The at least one collar is configured to cooperate with a pipeline through which the capsule is transported, in use, to guide and/or substantially seal. Preferred Capsule: In the capsule, the at least one circumferential collar comprises two circumferential collars. It further comprises a pair of electrical terminals at each end of the capsule. It further comprises a switching means for selectively switching, in use, the contact between the pair of terminals at one end of the capsule with those at the other end of the capsule. The switching means comprises one or more solid state switches. Preferred Vehicle: In the vehicle, the battery comprises an array of tubing within which capsules can be located. It further comprises at least one displacement pipeline through which capsules can be transported to and from its rechargeable battery or batteries. The displacement pipeline is pneumatically compatible. Preferred Method: Charging or recharging at least one rechargeable battery within an electric vehicle involves use of a service and/or charging station optionally with use of a repository.