Audioquest DBS System

there is a test button on the DBS housing. I beleive the batteries are user replacable.

The only way to tell if the batteries need replacing is to use the tester on the battery back. Of course if you do use the tester and the light is not a bright green but a faint flicker then you should check the connections and perhaps change the batteries. Good luck trying to find 15 A23 batteries at one time.
Ciao,
Audioquest4life

My point was that, if I could not hear a difference, why would I care?

Kal

1. Push the button on each battery pack: if green light comes on,
you are good; if not, replace the battery (not the whole pack, just the battery).
2. Supposedly the batteries will last "years."

I have a pair of Jaguar XLRs 1m with the 24V DBS. They still have plenty of power and I had them for years! By the way, if you are interested I am planing an upgrade and would be willing to part with them. I would make you a good deal.