My original question:
In the rule 4h, it says,"...as long as the expected voltage across any points does not exceed 9.0 V as calculated by [the batteries'] labels." Does this mean that the proctor will look at the battery, and then decide if the circuit is legal, or will the proctor actually take a voltmeter and measure? Also, does the "points" referenced in the rules refer to the terminals of the battery, or can they just be any two points? We are concerned about voltage spikes, so if some were to occur, will the proctor give us violations?
As of now, we want to do 7xEneloop or 6xAlkaline. The rule seems to imply that as long as commercial batteries connected in series do not exceed 9V, it should be okay. We are concerned that if the voltage anywhere exceeds 9V even though our batteries are less than 9V, we will be dinged. Alkaline batteries are typically 1.6V when fresh and with no load, but they are labeled 1.5V - so can we use 6x alkaline?
"Across any two points" means that ANYWHERE in the circuit, the voltage MUST be less than 9V. I assume you are thinking about connecting batteries in series to raise the voltage. A good ES will look for that and catch it. You could likely get away with it at some competitions, but why risk it.
"Points" refers to any two points, not necessarily the terminals
The terminology in the rules is "as labeled." This means that, as far as the rules concern, 6 Alkaline cells in series that are labeled 1.5V but running at 1.6V are still considered only 9V. The rules are designed to protect you against this and the event supervisor from having to check everyone's device with a multimeter.
These replies are contradictory, so does anyone else (SO officials like chalker?) have any input about this? I interpreted this rule similar to RJohnson, but I just want clarification.