batteries active bass

  1. M

    Do I need new batteries on my active bass?

    I've an active jazz bass that runs on two 9v batteries. I recently changed my batteries, that is on august 1st week 2020. I practice approx. 45 mins everyday. In that ime, I'll have the preamp on for 10-15 mins. My bass is sounding like this now. Should I change the batteries? I handle and...
  2. Salsa

    I never place a battery in my bass

    I never use the active pre-amp in my bass, and therefore never have a battery in it. Will doing this harm the active pre-amp due to non-use?