I own 2 Dano Fab Tones-(one for back up) that i use on my small rig's pedalboard as a solo channel for that extreme fuzzed out sound...... The Battery lid is a POS. To remove it you take a chance of snaping it. A friend at a local hardware store came up with a tip that works on those lids... the stupid piece of plastic you bent to open it is shaped like a U.... In that U you place some silicone and let dry, just a little bit... when dry it acts like a spring and you don't break the lid pins anymore... It has worked for me.
WhoFan