i have pics of a premium battery i can put up later today... ill go ahead and give a description
first pry off the led cover at the 2 notches prying a little on each side then you will see the led and pcb that controls the auto feature and has the protection circut for the battery. then you carefully put something as a very small screwdriver into the hole on the conection end and apply slow steady pressure pushing until at the led end you see the guts start coming out you will then find the silicone oring that is part of the auto feature(as best as i can tell)and a small plastic sleave that surrounds it. if you keep steady slowly pushing then you will find a plastice ring that seems to help keep the wiring straight. next thing you will see is the battery its self ...BEWARE you can only push it out about 1/2 inch before you risk pulling one of the battery conecting wires loose, but it is possible to get out enough to clean the pcb and oring off and re-install. i found it interesting that the auto feature is located at the led end, so all your pushing against from the conector end is the battery...hope this helps and ill try my best to put pics up later
