Ok, I made the dummy battery and it works perfectly!. Since the other site has the wrong dimensions, unnecessary parts, and is in German (
http://www.ixus-world.de/index.htm?workshops/spannungsregler/spannung_2.htm), I think it would be helpful to show people how I did it, but my scanner is broken. I can still explain it in words though...
Digital Ixus 80/Canon Powershot SD1100 Dummy Battery:Materials:
- normal size (8x11) sheet of 1mm thick cardboard
- two small, but not too small, insulated wires (preferably red and black)
- super glue!
- precision cutting instrument
- soldering iron+solder (optional, but recommended)
The dimensions of the Ixus 80's battery are 35x40x5 (mm), so you will need to cut 5 rectangles out of the 1mm cardboard with the dimensions of 35x40 (mm). The document I was going to scan was a layout of the way I designed each of the 5 levels of cardboard, but the design is your choice. It doesn't really matter, as long as the functionality remains.
The point of entry into the camera (a small, closeable circle) is 1.5 (cm) from the right of your 35x40 (mm) sheet. It should extend 0.5 (cm) to the left from that point. On my dummy battery, I made this hole on levels 2, 3, and 4 (5 levels total). This point will be where the wires that you attach to your new battery will be sticking out.
Getting the point of contact within the camera is a little trickier. waterwingz informed me that the middle contact on the battery is not needed, so I stuck my battery on top of my sketch, and just copied over the two positions of contact (they are about 4mm wide). From a topdown view of the battery, the positive will be the rightmost contact, and the negative will be the leftmost contact. To mimic the camera's battery as much as possible, I made these points of contact on levels 2, 3, and 4.
I wasn't sure if I needed this, but I noticed indents in the top 2 corners of the battery, and protrusions in the same spot inside the camera. To make sure my battery would fit in the camera, I cut minute squares out of the top corners in levels 1-3.
That's it for now! I hope I helped someone with this!
