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Step 9Make your Battery Pack
I'm now going to use some AA batteries for illustrative purposes because the last bit of the assembly was alot of trial and error but you should still be using AAA batteries.
First you want to tape your batteries together side by side with opposite polarities next to each other, don't worry about the taping job being good this is just to hold things in place for now.
Next pick an end and solder a bared piece of wire across the batteries like shown, DO NOT use excessive heat make your solders quick, I'm no scientist but I do know that prolonged heat is not good for batteries.
First you want to tape your batteries together side by side with opposite polarities next to each other, don't worry about the taping job being good this is just to hold things in place for now.
Next pick an end and solder a bared piece of wire across the batteries like shown, DO NOT use excessive heat make your solders quick, I'm no scientist but I do know that prolonged heat is not good for batteries.
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Jun 12, 2010. 5:42 AMlost_sanity
says:
i tried to soldier my batteries together but everytime it just came off again... how did u do it??
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Aug 13, 2010. 3:20 PMssevan
says:
I would sand the battery contacts just a bit, that always works for me.
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Jun 12, 2010. 1:18 PMBOBMUNZ (author)
says:
First is to make sure you use enough solder, and the second is that you have to heat the contact on the battery up a bit too, that is why I cautioned people that you need to be careful, if you heat it up too much it can cause the battery to burst or leak. If the part you try to solder isn't heated up at least a bit as soon as the hot solder touches the metal that isn't hot enough it will solidify and not bond properly. Another possibility is that the solder you are using does not have flux in it. Flux helps clean the contact of contaminates and allows the solder to make a stronger bond. If the solder you used does not have flux in it you may need to find some flux that you can apply (has a small brush in it) to clean the contact prior to soldering. Not sure where to get it as all the solder I have ever used since highschool has it already inside.
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Jun 14, 2010. 2:11 AMlost_sanity
says:
yeah, i tried several times and it just annoyed me.. so atm im usins a paper clip which is bend into place and held by electrical tape :D just a comment on the whole thing thou: did u use a resistor for the circuit?? cause i know some leds just blow up on 3Volts of power. and if u ever make another lighter light, might i suggest a laser lighter?? cause thats wat i did and hell is it fun to confuse people :L
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