I can see what you guys are saying where the voltage may drop a bit as the battery depletes (even tho it technically shouldn't w/ Li-ion). But it's not something I can say where fully charged = definitively better. My ADV flavor is a great tasting blueberry/vanilla combo. I've found that vanilla flavoring is pretty sensitive to heat, and if the coil gets too hot, the flavor doesn't taste nearly as good. That only happens if I take too many hits in quick succession, but I've found an ideal workaround. I now vape this flavor on my oldest battery. It's an 1100mah Ego clone that definitely doesn't have the stated capacity. In fact it dies quicker than my 650's, although it does still work. But since this battery must put out a lesser voltage than my 2 main batteries, and the coil in turn doesn't get so hot - my blueberry/vanilla always tastes good on this 1. Now that I think of it, I've put it on my new 1100mah when freshly charged, and I was getting the crappy taste quicker than usual. My next battery is definitely gonna be VV so I can make these tweaks myself tho.