A method and apparatus for testing a battery connection is provided. The apparatus includes a clamp attached to a conductor for attaching the conductor to an object, a first sensor configured to detect a voltage associated with the clamp, and a second sensor configured to detect a voltage associated with the conductor at a point located distally from the clamp, the voltage detected by the first sensor and the voltage detected by the second sensor are compared. A method for testing a connection includes sensing a first voltage in a cable carrying current to at least one of two and from a connection, sensing a second voltage associated with the connection, comparing the first and second voltages, determining whether the connection is acceptable or not acceptable based on the compared voltages.