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I'm modding my Warhammer 40k Imperial Knight to have glowy LED green eyes. That bit's already done. The body is hollow, and the dream was to cut a slot to slide a 2032 coin batter into the back like a coin for a vending machine, sticking halfway out and covered by a cloak. The slot's been cut and can easily be expanded. Problem is, I'm having trouble making anything for the connectors, some kind of battery slot with Pos/Neg wires on top and bottom.

Please advise!


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I found some premade sockets online, but they're 3 Pin. I don't know enough about electrical, but I figure the third is ground. Will it be okay to ignore that third one, hook the other 2 up, and set it all in place?

Without seeing one in person, it's hard for me to say.
The only coin cell holders I've seen only had two lugs.

Can you give me any kind of link/reference? The only kind of slide-in type sockets i can find are 3 prong

you want something like this?
http://uk.rs-online.com/web/p/battery-holders-mounts/4814162/

Also batteries don't have a ground in the way you are suggesting.

can you link me the mount you are talking about?

also you want to put a 220 ohm resistor in there between the long arm of the LED and the + of the battery

Edit: ok maybe not that mount, servs me right for not reading the datasheet first there is plenty of choice around.

This is what I was looking at. http://m.ebay.com/itm/130942181363?_mwBanner=1

The middle peg is the "-" side.
The left one is the "+" side.
The right one is for mounting.
If you do not want to wait for shipping and already cut the slot for the battery. Just take a paper clip and snip of 2 pieces that have a "J" shape. One on the top and one on the bottom and Bob's your uncle. (Has the added bonus of not having to worry about the polarity of the LED's. As long as both LED's are fitted the same way)
(As mentioned before please add a resistor to balance the load. Somewhere between 100 and 470 Ohm is fine)

Looks like the centre one is the -ve and the side two pins are +ve. (it says so on the diagram)

So you can use either side electrodes, or both, with the centre electrode completing the circuit.

badkamer1 wrote:
The middle peg is the "-" side.
The left one is the "+" side.
The right one is for mounting.
If you do not want to wait for shipping and already cut the slot for the battery. Just take a paper clip and snip of 2 pieces that have a "J" shape. One on the top and one on the bottom and Bob's your uncle. (Has the added bonus of not having to worry about the polarity of the LED's. As long as both LED's are fitted the same way)
(As mentioned before please add a resistor to balance the load. Somewhere between 100 and 470 Ohm is fine)

Genius! I'm doing that.

Honorable mention to OneManNoodles, for actually reading the diagram, unlike me.

Don't forget to build an ejection mechanism so you can remove the old battery.

Why don't you work down the wires to the base and put the battery on the bottom side of the base? less cutting in the model and you don't have to build a ejection mechanism to remove the old battery?

Winterdyne, it will be half sticking out the back, covered by a black cape.

Remco, I already cut the slot. I just need to insert the socket.