Kawai K1II how to do NOT the battery replacement ;-)

Hello, I think this is not really an example how to do the battery replacement. This is just a quick shot to find out if this fix my problem with the waveform on a stringsound: http://www.youtube.com/watch?v=OBD4wZ... unfortunately it doesn´t fix the problem :-( My wrong issue is how I fastening the battery and the contact with a adhesive tape. There are far better ways to do this, as you see in the comment by "roetsj" But always, if you doing a Battery replacement SAVE YOUR SOUNDS FIRST ON AN EXTERNAL MEDIA. AFTER REPLACEMENT ALL INTERNAL SOUNDS WILL BE LOST!! ---------------------------- The background music I write and recorded myself, the most sounds are from the Kawai K1 II only the drums are from a Roland TR 626.