Abstract: A safety device that is attachable to battery posts to extend the effective length of such posts. The device has a looped proximal end that is slideably mounted on a battery post in underlying relation to a cable clamp, and a flat distal end integrally formed with the proximal end. The distal and proximal ends of the device are electrically conductive, but a non-conductive cover is provided to encase the distal end of the device when it is not in use. A juncture line is formed where the proximal and distal ends meet, and the juncture line is yieldable so that the angular disposition between the distal and proximal ends of the device can be adjusted from a coplanar, 180 degree angular relationship to a substantially perpendicular relationship, the coplanar adjustment having utility in the context of side mounted battery posts and the latter adjustment having utility in the context of top mounted battery posts.