[Elecraft] KX1 display flicker after activating SCAN mode?

I hit upon the scan mode by accident with my brand new KX1. Reading the manual it appears the memories are the scan boundaries. I've not set these, so they would be whatever default. I've noticed that while scanning, and even after scanning, the RF I hear is reduced from what I had heard befor

[Elecraft] Experience with off brand Lithium AAs?

I've found a few "generic" brand Li AA's. I know the Energizer's are the preferred battery for the KX1, but am curious if anyone has tried these off-brands that seem to save a couple bucks? For example I've had good luck with other batteryspace products: http://batteryspace.com/index.asp?PageA