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Ixus 80, SD1100 - Need an external power supply...

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Ixus 80, SD1100 - Need an external power supply...
« on: 27 / July / 2012, 19:22:28 »
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Hi.  I am aware that many other posts of this kind are in this subforum, but some of them just don't make sense to me, so I decided to make my own. 

I have an Ixus 80, and I was wondering how I can attach something like this: http://www.mouser.com/ProductDetail/Ultralife/UBBP01/?qs=bAKSY/ctAC6mBBJiFVScNoNnjfBmta59 to my camera (it's the blue version  :P).  In the battery compartment, there is what seems to be some sort of female springy connector.  Is this there for external power supplies?  How should I proceed?  Thanks!

Re: Ixus 80, SD1100 - Need an external power supply...
« Reply #1 on: 27 / July / 2012, 20:01:30 »
The posts in this forum thread cover just about everything I could think to put in a reply to you.  Even better,  its for your camera too :  http://chdk.setepontos.com/index.php?topic=2552.0

Let us know if any parts of it don't make sense ?
Ported :   A1200    SD940   G10    Powershot N    G16

Re: Ixus 80, SD1100 - Need an external power supply...
« Reply #2 on: 28 / July / 2012, 19:58:55 »
Upon taking a second read-over, and translating the German page for instructions of how to make a dummy battery, things actually do make a lot more sense to me now  :).  I only have one question.  What is the small black thing that he solders the wire to, and where can I get one?
« Last Edit: 28 / July / 2012, 20:01:51 by mrShrimp »

Re: Ixus 80, SD1100 - Need an external power supply...
« Reply #3 on: 28 / July / 2012, 22:54:29 »
What is the small black thing that he solders the wire to, and where can I get one?
Looks to me like its a standard 1/8" audio jack.  It lets him put the battery adapter into the camera and then plug his external power supply in through the hole in the battery door.  You used to be able to get them at any Radio Shack : http://tinyurl.com/cu5b5ku
« Last Edit: 28 / July / 2012, 23:02:05 by waterwingz »
Ported :   A1200    SD940   G10    Powershot N    G16


Re: Ixus 80, SD1100 - Need an external power supply...
« Reply #4 on: 29 / July / 2012, 17:02:33 »
Thanks!  I've noticed a couple more things though.  The dimensions on his fake battery do not match those of the stock battery that fits in the camera.  Mine is 40X35X5 mm.  His is 42X38X6 mm (I think).  My camera is the Powershot SD1100 version, but I was under the impression that the Ixus 80 was the exact same camera.  I can modify the dimensions, but I also noticed that the big + and - metal sheets do not line up with little bumps inside my camera's battery compartment.  I know I must sound naive for asking this, but why are there 3 points of contact between the battery and the camera?

Re: Ixus 80, SD1100 - Need an external power supply...
« Reply #5 on: 29 / July / 2012, 17:17:47 »
I know I must sound naive for asking this, but why are there 3 points of contact between the battery and the camera?
Not a naive question at all.  The Lithium-Ion batteries used in these cams hold an incredible amount of power in a very small form factor.   That's the advantage of LiB's !  The downside is that they can be tricky to recharge.  If you push a little too much current into them they tend do nasty things like explode and set things on fire.  So the third connection is to a temperature sensor.  Any recharger worth using monitors this sensor and if the temperature starts to rise, it backs off on the charging current - all the way if necessary.

Safety seems like a good idea ?

Ported :   A1200    SD940   G10    Powershot N    G16

Re: Ixus 80, SD1100 - Need an external power supply...
« Reply #6 on: 29 / July / 2012, 17:29:13 »
Ok, thanks!  So how do I tell which bump is plus or minus?

Re: Ixus 80, SD1100 - Need an external power supply...
« Reply #7 on: 29 / July / 2012, 17:40:49 »
Ok, thanks!  So how do I tell which bump is plus or minus?
volt meter ?  ... although its labelled on the side of all the batteries ( Canon & clones ) for both my cams ... the middle terminal is always the temp sensor too
« Last Edit: 29 / July / 2012, 17:51:41 by waterwingz »
Ported :   A1200    SD940   G10    Powershot N    G16


Re: Ixus 80, SD1100 - Need an external power supply...
« Reply #8 on: 29 / July / 2012, 17:50:50 »
I just did a major facepalm, haha.  I'm really in a hurry to get this made :\ .  Thank you again!

Re: Ixus 80, SD1100 - Need an external power supply...
« Reply #9 on: 31 / July / 2012, 22:39:45 »
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!

 

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