Electrical testing system and method

A system for analyzing cranking RPM of a vehicle comprising:

• a testing system configured to be coupled to at least a portion of an electrical system of the vehicle, wherein the testing system comprises a load module and a control module, the testing system is configured to:
• measure current and/or voltage of the portion of the electrical system at the load module during at least a portion of a starting cycle of the vehicle, the load module configured to apply loads to the vehicle's electrical system,
• determine a first extreme current and/or voltage point of the portion of the electrical system after the starting cycle has begun to designate a first reference time,
• determine a second extreme current and/or voltage point of the portion of the electrical system after the first reference time to create a second reference time,
• determine an amount of time between the first and second reference times,
• determine a number of compression strokes per minute based on the amount of time between the first and second reference times, and
• determine the cranking RPM of the vehicle based on the number of compression strokes per minute and number of cylinders in the vehicle,
• wherein the determining steps are performed in a control module located remotely from the load module.