I think I saw another member asking this question but can't seem to find it. So...Yesterday my X-70 was acting very erratic and just before shutting down I noticed my battery level was way done. Would low battery level cause such behaviour? This is the first time this has happened since I got the X-70. I was detecting a place with quite a bit of iron junk with the 9" 3KHz coil. Yes, I realize, more junk, more noise. I even adjusted my sensitivity lower and re-balanced several times , no help.