Not really, that is what I do... the battery will still discharge if you have a 1/4" plug cable inserted. The battery does self-discharge like any other battery over time. I recharge mine when I get to 2 LEDs (I check every few weeks)..
There are some threads on this.
Thank you for your quick response.
I see after i posted, some thread linked with mine.
I don't know after reading the other thread, if the battery is needed to use the mag pickup ?
In other words, is the VDI cable sufficient to powered the modeling sound AND the magnetics mics ?