Coin Cell Battery Pack Howto
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- Опубликовано: 3 авг 2024
- How to make a coin cell battery pack using shrink wrap and hot glue. Works for multiple cells for varied voltages, or just one if needed.
Large Shrink Wrap Multi-Pack Used: amzn.to/2jPVPa1 [Amazon]
Blog post: www.jcopro.net/2017/12/05/howt...
Music and Mixing by RNA Sounds: www.rnasounds.com/
Note that I didn't get any special promotional consideration for making this video, however, the Amazon link is affiliate. In other words, if you buy something there after clicking the link I get a small commission. 
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Thanks for taking the time to enlighten me. You've solved my build problem. Thank you.
Well thanks for letting me know!
Thanks for the wisdom! The shrink tubing and hot glue is genious!
Well thank you, hope it works out for you!
Great idea Jeremy. I remember making a 4 by AA holder once with an elastic band, tape two coins and a tube of rolled up paper. Ha ha yours is way more elegant and gave me an idea to use an inflated balloon to shrink wrap larger batteries if I needed to by letting it deflate around them.
Well thanks. I've certainly done my share of inelegant projects in my time, but sometimes things turn out nicely ;-).
That's an interesting idea about the balloon. Now you just have to figure out how to get the batteries in :-)!
Pretty clever man! This solution would be useful in many projects! As Chris Muncy said, "Keep 'em coming!"
Thanks! Definitely have a few in the works, so stay tuned :-)
On the other hand, there's always this moment where I'm thinking, "Hmm, now I have to figure out what I'm actually going to complete and produce next." RUclips is a great motivator to get projects to 100%!
Morning Jeremy, this is a great idea. One thing you might try is crimping a spade lug to the wire and slipping that under the heat shrink. Might make for a more reusable wire connection. Keep 'em coming.
Hey Chris, thanks! That's a good idea too-somehow using a spade lug didn't cross my mind :-)
Answered two questions I couldn't confidently remember the answer to...
Thanks. Subbed for future reference.
Good to hear, and thanks!
Clever, simple solution. Thanks so much for sharing!
Np, hope it works for you!
Simple and very effective, thanks for the upload.
Thanks!
Thank you! I just tried this for a music box diy I was making. It didn’t come with batteries and this did the trick!
Awesome, glad it helped!
Awesome video! This is exactly what I've been looking for!
Well thanks!
Great idea! I need a few coin batteries stuck together to form a replacement proprietary CMOS battery for an old laptop I have and this might just work. I was looking around for spot welders until I saw this! I'll give it a go.
Good luck!
Amazing! Just what I was looking for
Enjoy!
Nice idea, thanks for sharing.
Thanks!
VERY SMART.
Thank you.
Really nice idea - thanks
NP!
Using this to replace coin cells in my auto darkening welding helmet! Great idea!!
Very neat!
Awesome! Thanks for sharing!!
NP!
Just saw your video and it gave me an idea for creating a small 9 volt battery that would light up a model railroad commuter car without seeing a 9 volt battery thru the windows. I could then use LED strip lighting. Only problem was finding a large size shrink tube to fit around 3 coin cells. I had a small shrink tube so what I did was cut a 2.5" length, slit down the center and flatten it out. Then overlapped ends 1/8" and super glued it and clamp it until cured. This created the perfect size shrink tube to hold 3 coin cells!
WORKS GREAT! THANKS FOR YOUR IDEA!
Nice, thanks for letting me know!
Nice idea. Thanks for sharing
NP, thanks for watching!
Marine heat shrink would work well also since it has a heat activated glue inside to help everything stick!
Neat idea!
Amazing!!!
Thanks!
Wow very good.
Thanks!
wowie hes still replying to this day now thats called a legend
Well thanks!
Love it when they actually reply. Kuz I’m bouta make a hugeee one in parallel & series.
Looks much easier than trying to solder the leads to batteries.
Yeah, that's tough to do (if I remember correctly) - perhaps you could use a spot welder, but I haven't tried it. Thanks for checking the video out!
Thank you sir great idea
Most welcome!
Hi Jer,, Thank you for posting your great Idea and problem solving solution,, I'm in the process of building a compact sine wave generator which I'm hoping will work on 3 to 4.5 volts of coin battery power.. I'm going to try and attach the wire lead to 2 small brass plates soldered of course and see if that works,, Thank you again for your great Idea.. :)
Hope it helps (helped :-)
Thanks, was helpful.
You're welcome, thanks for the comment!
Thank You So Much!!
You're welcome!
That nunchuck would make a great remote for an electric skateboard or my hydrofoil build.
Ha, not sure I'd trust it enough TBH!
BTW, you may notice that some of the shots are way better lit than others. I installed the desk lamp you told me about in between some of the shots, and it seems to make a huge difference.
Yes much better after 1.17
That's interesting. I actually filmed the beginning when I had the light (I think). The old setup is "on display" around 1:48.
What a battery hack, nice video, thank you so much!
Well you're welcome, and thanks for watching!
Do you think if you used copper cable and copper washers it would work better?
@@stevelawless1 Possibly, seems like the issue (if I'm remembering correctly) was getting it to actually solder. If you have better skills, it might not be a problem at all. Spot welder could work too.
@@JeremyCook conductive paste and carefully glue gun around sides would b suffice or blue tac
@@stevelawless1 Thx for the idea!
Nice video, man! One quick question, what size did u used for the 2 battery pack?
Hi Ati, to be honest I don't remember. I just got a bit multi-pack and used what fit. Sorry not to be more help.
Great idea!!! I'm new to this and a bit lost..
I need to connect 30units of 3v LED to one power source, any ideas, please?!
Thanks! Sorry to say I don't have a great answer for that. I think you could connect them all in parallel if the source was capable of outputting enough current. You'll likely want to use a resistor/resistors as the LED requirements and power source will likely not be the same.
I have many CR2032 coin cell battery (sony & energizer) not sure what to do with them. any suggestions?
John
You could make throwies, where you straddle the battery with an LED's legs. Add a magnet and/or tape and you can throw it on stuff and have it stick.
Hey thanks for this great idea. Can i use lr44,sr44 battery with this same technique?
Thanks Onurcan! It might be possible, though I'd imagine it would be more difficult given their smaller diameter.
@@JeremyCook but procedure is same right?
@@onurcandemirbilek4874 Should be, I've never tried it.
excellent video. this just saved my butt, i couldnt fit the whole big plastic battery holder into the small area where i need to store my 2032s. Curious which heat shrink size was correct, i imagine 25mm?
Glad it helped! As for the size, I don't remember off the top of my head, and it would depend on how many you stack. There's a multi-pack in the description that may do the job for you.
If I wire them in parallel will I get the same 3 V with larger battery life? I have a device that’s killing 2032 batteries too fast.
Hey George - yeah that should work!
hi jeremy if i wanted to run the coincells in parallel how could i do that?
Hello - I have not tried it. Perhaps you could slide them in side-by-side in the heat shrink and apply one wire to the top and the other to the bottom.
Could i just flip one around to connect them in parallel? I’m thinking probably put one wire right in the middle, and another short one connecting the outer connections to a final wire coming out of one end, so that it comes out with 1 lead out from the middle and the other out of one side
Hmm, seems that could work, though I haven't tried it.
Jeremy Cook Just tried it. Reads 3V AC on my multimeter :)))
@@syllavr4584 Neat, glad to know that works!
Hy, How can I convert into 5 volt. I want to power my Raspberry Pi Zero w
Hi, I think what you're looking for is called a constant voltage driver. A boost or buck converter might also work depending on how many cells you have stacked.
What hot glue did you use that is conductive?
The hot glue is not conductive. That's to hold everything in place.
Bro ..can i recharge 2s batrry in series which follows 6 v ..by connecting it with 6.4 v power supply
I'm not sure. These aren't rechargeable.
@@JeremyCook ok bro thanku
can I use electric tape instead of shrink wrap?
Probably would work, though not sure how well that would hold up.
Did you find it easy to replace the batteries when they eventually died?
No, I guess not.
How would you include an on/off switch into this circuit?
I would connect the switch in series off of the positive wire.
@@JeremyCook thank you!
Can we use pack of CR3032 batteries in making power bank?
Depends on what you want to power. It's ~3V per battery when wired in series.
Wanted to use charge mobile and want to make it similar to other power banks.
Can I make like that?
@@akankshakacham9065 You could probably do it with a buck converter, but I wouldn't recommend it. It likely would be quite complicated for fairly poor performance.
Thanks got it👍☺️
how many mAh gave?
It would be whatever the battery is rated for. Or a multiple of that value if using more than one battery.
Is it possible to make it rechargeable?
Yes, they sell a rechargeable version of the CR2032 - I think it's an LIR2302. You'd likely need a few more electronics to ensure the proper charge I believe.
@@JeremyCook Thanks
@@garybyley8940 NP, hope it helps.
I know your probably not short of projects but I this gave me an idea maybe you could give me feedback on? perhaps even try if it's not too difficult.
Glad it gave you an idea. What is it?
@@JeremyCook wiring up the rechargeable versions of these that could fit into a 3d printed case. a bit like that "smart" iphone battery case but slimmer, then maybe add a couple connectors so it can charge and be charged
@@Godsavethecrumpets Interesting idea. While I'm not certain, I think what would be difficult about it is that you'd need to independently wire up and charge each cell. At least that's the ideal situation with multi-cell LiPos. Could be done, but likely other solutions would work better IMO.
@@JeremyCook what do you think is the easiest way just attach another phone battery in the case and wire a male usb into the bottom of the case? is it possible to add a female usb connector to that setup too?
Check out this video that I put out recently: ruclips.net/video/0IC79ni-D_0/видео.html The board I used may be what you're looking for (or maybe even the boost board earlier on_
How do I make this portable?
Seems pretty portable to me. Maybe I don't know what you mean.
@@JeremyCook how to change the batteries
Is it rechargeable?
Generally no, however you could use rechargeable cells if you so prefer.
@@JeremyCook Thank you.
@@jimmatrix7244 NP!
Hi, just a suggestion, but be careful when handling those batteries with bare hands or metal pliers as you would be shorting them out. Even momentarily you are reducing the battery life.
Hi Jayy, that's a good point. Maybe I need to put some shrink wrap around my pliers for this purpose.
@Ben McConnell
E.s.d.......??
@Ben McConnell
Hello....anyone home....??
Chiirrrrp Chiirrrrp......
......crickets.....
@Ben McConnell
Yes muppet, you already said that.
If 4 of these kind(coin cell) could give 12v.........then why we have to buy that huge box like batteries????? Is there any power difference?????
The difference is in the total power (edit: energy really) available is much less for such a battery pack. Check out the mAh rating for larger batteries and compare it to one of these and that will help explain things.
@@JeremyCook 👍👍
Copper tape the leads down before shrink wrap
Good idea!
hahaha love the secret for us hardcore plus 1 minute viewers
Haha, thanks! Unfortunately, the project is still unfinished/in my head. One day though :-)
And why did you skim right over how to place the batteries Plus to Plus or Plus to Minus in the stack??? This is supposed to be a tutorial for people who don't KNOW about plus and minus!!
Its hard to know my motivation from 2 1/2 years ago. Probably laziness or neglectfulness.