A battery terminal post clamp is provided and consists of a pair of inwardly curved arms having crossed end portions. The arms are pivotaly connected at their lower ends in a spaced apart relationship on one of two mounting plates. The mounting plates are attached together to fit and grip an electrical conductor of a battery cable. A finger engaging portion having an aperture therethrough is affixed to each crossed end portion of each arm so that a guide bolt can extend through each aperture with a guide nut threaded on the end of the shank. A coil compression spring is arranged on shank of the guide bolt between the finger engaging portions. The spring urges the finger engaging portions apart causing the arms to move towards each other to grip a terminal post until a person squeezes the finger engaging portions together to compress the spring and disengage the arms from the terminal post.