I have a Peavey Millenium AC BPX 5 string w/ active pickups. After about 10-20 minutes of play, it looses a lot of power and finally cuts out and starts making a really loud clicking noise through the amp. I bought new (name brand) 9v batteries, and after about an hour of play, it happened again. I've tried different amps and I leave it unplugged when it's not in use. This bass is practically new. If anyone has any ideas, I'd appreciate it.