Question What if I run the JP13 without battery?

[Rachmaninoff]

On a JP6, if I remove the battery, the piezo is muted, everything else works normally.
On the JP13, what happens to the push/push knobs behavior?

 

[drewbixcubed]

The JP13 is completely active (both piezo and magnetic pickups). It will always require a battery.

 

[Rachmaninoff]

Okay, thanks for the info.