Hello this is my first post, I just joined, I hope I am posting in the correct place. I belong to some computer forums and some biker forums but not sure how these technical forums work. I am not a student but an enthusiest (spelling?). My current subject study is: In automotive charging systems it appears the Alternator is wired in parallel with the car or motorcycle battery and main circuit. The voltage regulator keep the alternator from burning up the battery with too much increased potential. My question is can one test for total system amps but simply putting an amp probe around one of the battery cables ? Or does the charging system have an effect (with it's increased voltage?) on the system amps ? And if so is there any way to separate the charging sectors input from the system amps ? I understand that batteries wired in parallel still supply the same voltage (12 volts) to the system but what happens when a charging circuit increases this potential ? I.e. I see that when I test the battery voltage while running and not running I get different amounts. Would appreciate any info or pointers that would help. Or please direct me where I should post this type of question.