Thanks for the battery information, it is time to change them out I guess. they are kind of weird so I thought they might be something special.
I still think that the addition of the AQ cables made one of the single most significant upgrades in my system. Subtle but significant. I am not going to go all GAGA for AQ per se, i am very happy with mine though. I think that cables, whatever they are, will have more of an impact than logic says they should.
Or, I have happily drunk the audio Kool Aid.
You can find them used sometimes or on E-bay. there is some talk of counterfeit ones on e-bay. That may be true but I don't believe so. My experience was quite positive.
good luck!