I am glad you asked this stupid question TBUS. as i bought a 2nd hand bass a month ago and the guy was as clue less as me when it come to the ins and out. I had had it a couple of days and picked it up to play it and it was dead, i checked the amp plug in and all that nothing so i took the back off and there was the battery. swapped it ,away we went again. So 2 things I can thank you for, 1 I now know its an active bass and 2 not to leave the lead plugged in.
Cheers for that.
Jynxter