What shop do you work at? Please inform us, so that everyone can STAY AWAY.I change battery with engine running, then no worry about lost parameters or radio stations... but of course I do this stuff everyday.
except that's not how generators (or alternators in this case, same thing really) work. as electrical load is put into the alternator, the drag to turn becomes greater. more demand, more torque is needed. you cannot set the thing to go full bore output like that. the drag will be proportional to the electrical load. all AC generators are inherently self regulating like this.The altenator and the regulator are designed to sense the battery voltage. If the battery is missing, the altenator goes to "Full field" or maximum output. Its an uncontrolled output from the altenator.
It takes 2 minutes to re-set the radio stations and the clock. Dont be lazy.
I agree with Josh here. Why would you want to risk short something out? Why would you want to work with live wire?What shop do you work at? Please inform us, so that everyone can STAY AWAY.
You sound like a backyard mechanic who has no idea of what he's talking about.
Removing the battery with the car running is one of the worst things you can do. It places the altenator into full field, and can do major damage to ECU's or the altenator itself.