Hi guys, I just bought a Canon EOS 1n(HS?) with the Power Drive Booster E1. It has an insert for loading 8 AA cells in it for the camera. The problem is, I keep getting the 'bc' error when I load the batteries in. When I remove the power drive and load it with a normal C2R5 battery, the camera works fine. Is the problem with my choice of batteries (Eneloop NiMH) or is it just a problematic Booster? I don't really want to go out and grab some alkaline batteries since I have no use for them (I have loads of Eneloop). Thanks!