Abstract: An electric battery device including: a battery attachment plate, at least one battery coupled to the battery attachment plate, the battery having a main face applied against the plate in at least one attachment position on the plate, and a gripping handle of the battery, rigidly secured to the battery, attachment members for attaching the battery on the attachment plate, in the attachment position, at least one lock for locking the battery in the attachment position and at least one release member for releasing the lock, characterised in that the lock is secured to the battery and the release member of the lock is arranged on a portion of the battery intended for the battery gripping handle, for gripping the battery and simultaneous actuation of the lock release member using just one hand.

Abstract: Disclosed is a portable battery device including a casing and a battery unit housed therein, and consisting of a plurality of battery elements. The battery device includes a surface unit for compartmentalizing the internal volume of the casing, defining sealed housings, the ends of the elements come respectively into supporting engagement, by or with the opposite end portions of the bodies of the battery elements, with the opposite compartmentalizing unit. The remaining parts of the bodies of the elements situated between the opposite compartmentalizing element are directly exposed to the outside environment through perforated or discontinuous portions of the wall of the casing.

Abstract: Disclosed is a portable battery device including a casing and a battery unit housed therein, and consisting of a plurality of battery elements. The battery device includes a surface unit for compartmentalizing the internal volume of the casing, defining sealed housings, the ends of the elements come respectively into supporting engagement, by or with the opposite end portions of the bodies of the battery elements, with the opposite compartmentalizing unit. The remaining parts of the bodies of the elements situated between the opposite compartmentalizing element are directly exposed to the outside environment through perforated or discontinuous portions of the wall of the casing.

Abstract: An electric battery device including: a battery attachment plate, at least one battery coupled to the battery attachment plate, the battery having a main face applied against the plate in at least one attachment position on the plate, and a gripping handle of the battery, rigidly secured to the battery, attachment members for attaching the battery on the attachment plate, in the attachment position, at least one lock for locking the battery in the attachment position and at least one release member for releasing the lock, characterised in that the lock is secured to the battery and the release member of the lock is arranged on a portion of the battery intended for the battery gripping handle, for gripping the battery and simultaneous actuation of the lock release member using just one hand.