Abstract: A snap-lock battery terminal connector (10) is disclosed. The connector (10) comprises a substantially annular ring (11) which has a lug (22) to which an electrical cable (23) is clamped. The connector (10) further comprises a pivotal member (13) which is manually graspable and which is used to move a clamping member (17) into engagement with one of a plurality or sockets (19) positioned on the exterior surface of the ring (11). The pivotal member (13) when pivoted towards the annular ring (11) with the clamping member engaged in one of the sockets (19) draws the two ends (12 and 20) together for the connector (10) to clamp onto a battery terminal.

Abstract: A voltage monitoring and controlling device (1) adapted for attachment between a power source and a power discharge terminal, characterized in that the device includes circuit means to indicate whether the voltage level in said power source is below, or at a first predetermined minimum threshold value. The device (1) also has means (6) to detect incorrect connection polarity and means (16, 17) for the prevention of voltage surges beyond a second predetermined value from the power source.