How's she goin' everyone? I have a T-Bird Pro 4 with the active pickup system. I noticed that if I leave the 9v battery in there, it will die within a day or two. Does anyone else have this problem? A friend of mine says his Jackson with an EMG active system in it has had the same battery for almost 6 months! And he plays every day. Could there be an issue with mine, or is my friend just jerking off? I use Duracell Pro Cell batteries, I've never had an issue with them before with anything else I have used.