Yeah, I have a few years of college level electronics courses. I repair complex electronic equipment every day for the Air Force. I must be a dumb ass. Thanks for letting me know.
When the vehicle is running, the battery is supposed to be charging and doing nothing else. So, as long as the engine is running it does serve no purpose, and if it does your alternator requires upgrading. If the battery did have a purpose during engine operation (other than to recharge itself off the alternator), then removing it with the engine on should have some effect. Guess what, you can take the battery out with the engine running and the car is none the wiser. The only reason a battery has to do anything with the engine running is when the alternator can't handle the load and its voltage drops. Then the battery has to step in and supplement it.
The battery's purpose is to start the car and power the electronics when the engine is off. Not when the engine is running. If you don't understand a basic parallel power supply circuit, then perhaps you should hold off on the name calling.
The problem with adding any supplemental power source (like another battery or a cap) is that once that source is tapped at all, it becomes a load on the alternator. You get a nice string of hard hits from your stereo, and now your cap is dead. From now on, until you turn down the volume or pause the music, the cap is putting more load on the alternator than before since it's trying to recharge. Similar situation with adding a second battery, or relying on the factory battery to supplement the alternator.
So, it comes back to the fact that the only real solution is to get a better alternator. Any intelligent questions or do you want to go back to name calling?![]()