I recently bought a panasonic fz28 D) and I'm looking for batteries. The camera came with a little note warning against using lookalike batteries. Now, is that because they don't want to lose money, or because something could actually happen? The battery that came with the camera: Panasonic CGR-S006A 7.2V 695mAh 5.0 Wh Sterlingtek: Sterlingtek CGR-S006 (has a bunch of As and Bs after the model number and I'm not convinced they would all be the same...why create a new number if it's the same?) 7.2V 1800mAh ???? Wh The 1800mAh should be fine (in fact, awesome), as long as the Wh is the same. But that isnt given. Anyone have experience here? Or do you know what's different between the S006A/B/1B/etc?