I wish they had a bypass too. Not because of battery failure though, I just want to hear them passive, especially for a fretless. I've heard a Bart MM PU passive and it sounded lovely. I'd love to hear what my Sterling would sound like without that pre-amp. Does it color the sound at all? I gots ta know!
I played this gig in the middle of nowhere, outside at a little airport. I had a new (to me) amp. I plugged in and all was good. Unplugged to tune, plugged back in and nadda. So I'm swopping cords, batteries, checking connections. Sometimes it's OK and then I turn around and it's dead or super distorted & weak. I had brought my old amp too so I get it out. Nadda. More patch cords pulled out. It's getting dark. We're late. I plug the bass into a geetar amp. Nadda. Check the battery again to find that in my haste, I'd re-inserted it the wrong way and broken off the terminal strip of the battery box. Luckily, we had a soldering iron and managed to melt the battery box up to hold the terminal strip.