Instructables

Easy Conversion : AA to C (Or Any Other) Cell

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Now, there are already many instructables for the same purpose, but, there isn't any this simple!!!....

After reading this, you shall be able to transform any cell type to any other cell type, given that the former is of the smaller size!!!...(I needed to transform an AA cell to C type for my wall clock...)


Just follow these simple steps  (Just read the words written in caps in case of hurry!!!) :-

1) Take the cell you intend to transform (note that the cell taken MUST be of smaller size than the one in which it is required to be transformed!!!).
2) Take some old newspaper or ant other rag paper.
3) Cut out stripS of width same as the height of the cell and length as long as possible.
4) Now just stick the one end of the strips on the cell. And then, just go on and wrap the cell continuously with the strips, until the cell has width approximately as that of the required cell.
5) Done!!!..... you are now the proud owner of a newly transformed cell/battery !!!.... :D

In case required, one can wrap the cell finally with some other coloured/printed paper to make the cell look somewhat the real type...

Costs involved : Not a single penny!!! ......Newspaper was just a rag....


THANKS FOR TAKING OUT TIME TO READ THIS INSTRUCTABLE!..... :D

REVIEWS AND SUGGESTIONS IN FORM OF COMMENTS ARE WELCOMED !!!....  :D

PLEASE DON'T FORGET TO RATE MY INSTRUCTABLE!!!.....  (:

Now that this has entered the 'Fix & Improve It' contest, please VOTE for this in case you like it!!!  :D


theshades12 months ago
This is OK for this low current application like a clock or a radio. But for higher current draws such as motors/relays I doubt it. I tried to replace my drill battery pack of 2/3C NiCd cells with higher amp hour Tenurgy AA Nih cells. It workedish. The drill turned(slowly) but the cells were over heating. The AAs could not provide enough amperage to push the motor.
Even at this application (clock) using the same type chemical cell you are going to only get a tenth of the working life compared a D cell of the same chemistry. But it will work in a pinch.
Siddharth Jain (author)  theshades12 months ago
That's true enough.. The AA cell just lasted about 1/5th of the c cell in my case..
jpoopdog2 years ago
Dick Smith electronics, radio shack, jaycar ect all sell AA to C/D adaptors. Dick smith as a matter of fact doesnt even sell rechargable D's anymore, just high capacity AA's that come prepacked in the Clear plastic D shell.

Lol, you should have patented it!
Jaycar huh? might have to get me some of those, and don't get me wrong Siddharth, this is a great idea, i'd just rather have reusable AA to C/D converters rather than making them every single time
Siddharth Jain (author)  mammasboy1 year ago
Thanks....
Yes I know, making them every single time is not feasible...But if you need them once in a while (as with the clocks), this can work well....
you know, im pretty sure battery chargers charge based on cell voltage and stop when the voltage stops rising, im pretty sure with rechargeable batteries they would work with your method, as you can safely charge them either way, plus the fact the ones i saw at dick smiths were unremoveable, the plastic was on there permanently so theyd hve to be charged in a C/D charger
Siddharth Jain (author)  jpoopdog1 year ago
" im pretty sure battery chargers charge based on cell voltage and stop when the voltage stops rising, im pretty sure with rechargeable batteries they would work with your method,"

You seem to be correct there...
http://www.ebay.com.au/sch/i.html?_sacat=0&_from=R40&_nkw=aa%20to%20c%20adaptor&_sop=15

Literally $1ea on ebay, there are probs listings for like 4-6 which cost even less per adaptor.
Beleive it or not there are even AAA to AA adaptors
Siddharth Jain (author)  jpoopdog2 years ago
Voa!!...I didn't know that!!!..... :O ....I just made it instinctively....and then in mid way, felt, 'I should share that on instructables!' ... nd so I did!!! :D

Thanks for stopping by and commenting... :)
DIVYA GARG1 year ago
sir..........I bought a digital multi meter , it has all measuring units.........as....AC , DC voltmeter, Resistance meter, its.........but I did not find capacitance meter ........because I have made some homemade capacitors........but I don't know what has capacity those...........! what should I do to know capacity of those..........................................!
Siddharth Jain (author)  DIVYA GARG1 year ago
first things first, you shall message me whenever you wanna ask some questions, not related to the above projecct!.... :)

and about the capacitors, see this!!!.... :)
DIVYA GARG1 year ago
I think you don't believe me ....................and I know to be a engineer we should have minimum qualification 10+2. ............ after this we shall have clear any engg. entrance exam as ........IIT, AIEE ............................................................................! but I said to you that I was doing " DIPLOMA ENGINEERING " NOT " ENGINEERING ( B.TECH )..;.....................................in UTTAR PARDESH we can take admition in "DIPLOMA ENGINEERING " after 10th......, for it we shall have to qualify " UP JEE" ( http://www.jeecup.org/ ....................and my UINVERSITY is http://www.bteup.com/ "..............................................................................................................................................................................................
Siddharth Jain (author)  DIVYA GARG1 year ago
Ah!...I see....but well, I never said I didn't believe you!!. :P
so, No need to give any explainatioons!!!!!... :D
DIVYA GARG2 years ago
ok......I shall not call you " sir".......! I have recently passed 10th from up board and I have taken admission in UP POLYTECHNIC DIPLOMA engineering in 1st year.......I have electronics ........but I am not able to learn electronics as..DIODE, TRANSISTOR, INDUCTOR its..........! I think these are very complicated ...for me.......what should I do .........to learn ELECTRONICS .....................................?
Siddharth Jain (author)  DIVYA GARG1 year ago
woa!!!...engineering after 10th!!!!.... :O

now I don't know whether they teach from foreign authors or not, but we here usually refer to electronic devices and circuits by boylestad.... :D
DIVYA GARG2 years ago
thanks , Siddhartha sir....................for this information ............!
Siddharth Jain (author)  DIVYA GARG2 years ago
oh!..please!...you don't need to call me sir!!!... :P
cause here at instructables, we all learn from each other!!!.. :D.
DIVYA GARG2 years ago
but ............I don't know what is mean of 'AA" and "C".............please tell what is these .............!
Siddharth Jain (author)  DIVYA GARG2 years ago
well, 'AA' & 'C' refers to the sizes of the batteries.....batteries come in all sorts of different sizes for all sorts of applications..... :D
chaitanyak2 years ago
nice :)

this is how most bigger batteries including laptop batteries are made nowadays. :) they just use high quality rechargeable AAs
Siddharth Jain (author)  chaitanyak2 years ago
Thnx.... :D
but well, I just didn't know that they made smaller ones look bigger that way....I just thought they are actually bigger!!!... :P
they used to make C cells at actual size.. probably still do somewhere..
i remember breaking one and taking out the carbon rod from one of them for my copper plating project at school.

but more and more of them are doing the AA trick now
Siddharth Jain (author)  chaitanyak2 years ago
Hmm.....k... :)
Misac-kun2 years ago
LOL jury rigging on the loose!
Siddharth Jain (author)  Misac-kun2 years ago
I didn't quite understand dat!... -_-
Siddharth Jain (author)  Cat on my Lap2 years ago
LOL!!!.... ah! how could I forget to Google it!!....
BTW, that was one awesome way to explain it!!!..... (Y)  :D