Hi, friends!
today i am showing you how to make a soldering iron from a 6v battery.
this is the easier way and the safest method ! it gets hot up-to 60 degree C in only 10 seconds.
here is the picture of it! i consist of two wires + and - .
the blue  and yellow  stuff is your soldering iron and the black wire is the negative terminal.
it's whole cost is only 6 or 7 dollars depending on the cost of battery!  and if you have a 6 or more volts battery then the expense will be reduced to only 4 dollars or 20 indian rupees! it's very very affordable!

Step 1: Stuff you need

The stuff  you will need is very cheap and easily available at any corner shop!
1. A Pencil. ( a common HB pencil. you have to remove it's wooden casing and  take out a long graphite from it. )

2. A sketch pen .  ( cut it half )

3. An  hollow  iron tube . ( the iron tube should be selected in a manner that the graphite lead can be easily inserted and can hold it tightly. )

4. Two long wires ( you can  increase or decrease it's length as per your need or availability. And the wire slould be thick enough 0.75mm so that it can hold the current passing from it.)

5. a 6 or 12 volt battery ( a 6 volts battery is good enough to make this but don't use any direct power supply it will decrease it's performance.  )

6 . A good quality paper. ( don't use a magazine paper use a simple rough and good quality paper like a times news paper. )

5. tools pliers , tapes ( it's good to use a head resistant tape. ) , a pair scissors.

               Caution : Don't dare in your dreams to connect it from a common household 220volts ac or dc supply. if you will try to        do this i am not responsible for your death!
<p>I made myself one too, the only difference is that I used a 16A power supply, gets white hot in 20 seconds, might make an instructable on it!</p>
Why cant i use a 9VT battery? And it their a substitute for the iron tube
<p>No a v battery actually dosen't have that much amps or in simple words that much power to heat a graphite rod , it just cant supply that much amps , many of you think that it's nine volts which greater than six volts so it can do but you also need to know about the current , so learn a little about current and electricity before trying to make any of this</p>
can you do a picture of soldering something with it?
Good! but hey man,4 dollars is not equal to 20 Rupees like you said.One dollar is about 55 Indian Rupees.Do the math.
Hello Sir and thanks for commenting! first i am not a man cause i am only 15 ! and I may tell you if you are going to buy the required stuff in india for this project it will cost you around 20 rupees cause i live in india and if you are going to buy one from u.s it will cost around 4 dollars cause i am familiar with these countries !
U said u were 17 then u said u r 15
in the instructable he's 14
<p>your soldering iron machine is not heat when i made iti choose adapter of 6 volt but they can't work</p>
hey kid can u make a proper schematic for yr project ....<br>its too boring to read all instructions :P...
<p>Do i look like kid? okay yes i do but i am 17 , and there's no schematic you just need to connect the battery and graphite rod in series!</p>
Very nice instructables!!! But can we use other battteries except 6 or 12 volt batteries maybe some AA batteries connected
For how much you got the 6v battery in india?<br>Can i use silver foil instead of paper?
<p>Nope paper is for therman insulation. And a 6V battery is about 350INR.</p>
<p>nice and cool.i will try making it .but i did not find a hollow tube can i use from an aluminium can</p>
Here is my solder
<p>it will never get that hot with a battery so low on amps you need a battery with high amps dude!</p>
<p>how many amps does it require??????</p>
<p>Never measured it though!</p>
<p>Around 1A @ 6volts!</p>
could you use a 9 volt battery?
I tried to make it <br>But my graphite is not getting enough hot to melt the soldering wire<br>I am using a<br>9v battery<br>
<p>Where do I find a hollow iron tube that small?!?!</p>
<p>dose it half to be metal or can it be a pencil casing with tin foil </p>
<p>could you be a little more specific on your words??</p>
4 dollars isn't 20 indian rupees but almost 270 indian rupees
<p>Thanks for sharing your idea :D I will try to make one for uotdoor soldering.</p>
<p><em>can we use 5volt mobile charger instead of 6volt battery??</em></p>
<p><em>can we use 5volt mobile charger instead of 6volt battery??</em></p>
Good Job!!
<p>can i use aluminium rod instead of iron rod??</p>
can we use a 9vt 20rs battery?? <br>wat do u mean by neg??
<p>by neg i mean negative . Now about the batteries you can use a 6v 2000mah battery.</p>
<p>Guys.. Shorting out battery's is dangerous. A man changing out his smoke alarm battery's lost his house because he put all the battery's in bag for recycling, and the terminals on the battery's touched and within 30 minutes his house was in flames. This is not safe people, don't do it.</p>
<p>OH DEAR ! I AM NOT SHORTING THEM!</p><p>The batteries are connected with a load having very high resistance (graphite) so tell me where iam shorting those batteries??</p><p>But thanks for you concern. </p>
<p>do u think it will work to solder wires like real solders??</p>
can i buy a mechanical pencil's refill (5mm) bcoz i cudnt take the lead out form the pencil.i tried it many times.
will this work if i use a power transformer? like 220 to 12 volt, will that be save? and what if i use 4 1.5 volt battery's?
Using it with a transformer is a better with cause it serves more Amps but the transformer will get hot i you will use for along time. And how come you got a 41.5 volts battery did you connected the in series if so it's not that safe for the battery's life and if this battery came assembled from the factory you did not connected them in series by yourself then you can use the but i really say don't use a high voltage cause it's dangerous the Lead can blow off hurting you . I must prefer you to use a a 6v to 19 volts batter with good amps but not much amps.
Pure Genius!!!!
Thanks ! for commenting! <br>
Very resourceful!!!
I have two soldering irons and can never find the stupid things, it's very handy to know I have an alternative for when I give up the search!
Hey! <br>here! <br> <br>all you need is a 6VOLTS BATTERY , 1 HB PENCIL (perhaps you have used it in your primary school) , sketch pen and two long wire! if this stuff is not available in your local area the your area is a very very remote are cause these things are too handy and easily available ! and Thanks for commenting!! and by the way this is for those who don't have one i made it cause i don't have it as i am a child !
love the way you put this together? how long does the soldering iron last?
Thanks! for compliment. <br>As per my use i am using it from previous and repaired it only 1 time cause my pencil's lead got old and broken! but it lasts for for 6 to 7 months. if you need it more durable only thing you need to do is roll more paper over it and use a heat resistant tape cause the sketch pen casing can get weak facing this heat and cold back to back so you must use a good quality sketch pen and do not use it continuously (this means do not touch the negative to positive more that 1 min if you will do it the case will get too hot and your fingers will burn up! and the plastic body will melt!).
Just click on the five images to view their labels !

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