>...... There >>is some weird rubber insert on the EN-EL15 tray that >makes >>sliding the tray in a 2 handed job to get it to sit >properly. >>I'm not exactly sure what it does -- I'll look at it more >this >>weekend........... > >Is it for using the EP-5B power supply? My Photix has that >ability.
I didn't know that existed until you mentioned it, but after looking at the picture I think you're right.