Looking to recreate the project and appreciate this content? As an Amazon Associate I may earn a small commission (at no extra cost to you): 1. Heating pads: amzn.to/3zKDymF 2. PWM controller: amzn.to/3vrOsev 3. M12 Battery: amzn.to/3bmbQmH 4. Battery Adapter (Optional): amzn.to/3bmcbpt I've made the design files available for the 3D printed parts if you choose to use the same components I did. PWM case: www.thingiverse.com/thing:2790920 3D printed Milwaukee M12 Battery Holder: www.thingiverse.com/thing:2790912 Alternatively you can use one of these if you can't 3D print: amzn.to/3vukBlz
Thanks for the idea, I just got my heated sweater going, added a lighted battery meter and used vaporizer batteries to power it, this sweater is great, thanks!
Bro went to look for parts and just bought a heated sweater. I made a heated coverall out of a vintage hot air popcorn maker when I lived in the da that I powered with a dogsled charged generator I salvaged from a military hand crank comm phone. . I was 14 no amazon eBay or market place. Life used to really blow
Embrace Racing sometimes come across a little jagged no insult intended your working knowledge of materials and safety accountability far surpasses my back yard engineering degree with actual knowledge and is most appreciated and educating. Thank you and I’m sure the next video will not disappoint . Merry Christmas . Kill crites !!🚀
My husband has a size 16.5 foot. I can't find any heated socks that come in his size. This is very helpful, I had a hard time finding out what actually heats up the clothes
I’m building my own heated sweater, you’ve had yours for a year now, I was wondering if yours is still working good, just wanted to know what to expect? Thank you
Hi Mike, sweater is still going strong! The only issue I had was that I managed to pull two wires out of one of my connectors, but it was an easy fix and since tied a knot in the wire behind the plastic cap to prevent it from pulling out. Thanks for watching!
Hello, I find this idea brilliant. I would like to make one but with an 18 volt drill battery. I have the adapter on which there is a 5 volt usb output. Will 5v be powerful enough to heat up my heating pads? If not, can I take the current directly from the 18v battery and the PWM will do the job of reducing the current enough? THANKS
I believe these are what you're looking for? amzn.to/4eSRdd8 The listing is calling them JST but I don't think they are JST at all... they are just some generic 2 pin connectors - let me know if those are the right ones, thanks!
I originally found this channel a year or so ago from the awesome LED headlights you made, and that really cool muffler box too, and a coworker and I were talking the other day about how hard it would be to make a heated jacket, and tonight i look it up and lo and behold its Embrace Racing ahhaaha. There isn't a whole lot that you can't do is there man? I'm glad you jump in and give every project a go, also love those 3d printed parts, I'm finally making the leap and buying an Ender 3 in the next few days, might have to give this project a go too. I sew for a living so at least that part will be easy haha. Thanks heaps for the videos man, always great content here!
Thanks Sam! You'll have a ton of fun with your printer and you will continue to find uses for it. I love to just try my hand and anything and everything so I keep taking on new challenges and learning new things :) I appreciate you watching my videos!
@@EmbraceMakingOne of my coworkers has been egging me on for ages to get a 3d printer so we can share ideas haha, it really is awesome that the tech has become available to consumers now, it's pretty freeing being able to make virtually whatever you like! Sounds like you approach things exactly how I approach things too man hahaha I love giving anything a go! Hey I appreciate the knowledge that you share, I think you're one of the only guys who has such an in depth look on building mufflers and especially making your own head and tail lights, never seen anyone get in there with those haha, and Ive always thought about giving it a go on my forester but never committed, but after seeing yours, there might just be a project on the horizon :) thanks man! hope you have a great day!
With the original milwaukee adapter it has battery protection circuit built in. My DIY solution did not (at the time) however, I would just turn the power off when I noticed the heat start to get weaker. Haven't over discharged a battery this way but yes it is entirely possible that you can. I have also since then (but not implemented into this project) designed a battery protection circuit for these batteries that works great that I've used on other M12 projects.
Id love it if u made this video again, one step easier for the beginners or more ghettoized version of just joining 2 3.7v 18650 cells, instead of needing a pwm controller. I think itd open it up to the masses even more
Just joining the two cells in series will give you about ~8.4V when the 18650 cells are fully charged. You can just run the positive and negative wires to your heating elements with an inline switch on one of the wires and you should be fine running this much voltage through them but you will have no control over the heat without the PWM controller.
Nice project! It will probably save me some money if I end up doing it myself. One thing to note is that you can see the white stitches on the front of your orange jacket. Color matching the thread will make this mod very stealthy.
hey unfortunately I don't have a 5V setup, but if you find the appropriate heating pads you could just swap it all over and get rid of the adjustable voltage component.
hmmm... don't know if I would use the term 'let's fire this thing up' ... it caused me an un-cool mental image lol.... I fly remote control airplanes year round. Could I use the LIPO batteries I use on my airplanes to make this clothing ? I have everything from 1cell 2 cell 3 cell 4 cell and 6 cell and from 850 mah all the way up to my 7200 6 cell batteries.
See which heating pads you can find first... some are rated at 5V ... you could probably still hit them with 12V but with the PWM controller set really low like 30% ... I can't remember which ones I found but the M12 battery is a 3 cell 12.6V nominal (which is actually like 14V peak) and I just set the controller to a low setting.
These should work the same: www.ebay.com/itm/Electric-Heated-Vest-Jacket-USB-Thermal-Warm-Keep-Winter-Body-Warmer-Heated-Pads/114586361152?hash=item1aade11d40:g:1fkAAOSw2sRf4A4O
This is a bit of a messy way to do this. Lining the wires at the back of the jacket? Sounds like it could be 1) uncomfortable and 2) you are limited to how far you can stretch the jacket. I don't know why you'd need to complicate it by adding a battery pack to one pocket and a PWM to another. I build battery packs for RC, drones, power packs with AC outlets etc using Lithium Ion cells and there is no need to use drill 18650 packs. There is no way you'll ever need that amperage that they are designed to put out for some heating pads. You could build your own pack using 3200 used cells using 3s3p + pwn module which would only be 6.5x2.5x0.7 inches in size. Basically the size of a small power bank. This would give you 71 watts and 10 amps continuous vs your drill battery pack of 18 or so watts at 40-60 amps. No drill uses anywhere near that, but these little heat pads will use nowhere near that. You'd need an entire blanket to draw 5 amps. Most these things use is what, 1-2 amps each depending on how much heat they put out. I doubt even that which is high (2amp). So yeah, these ones he listed are 0.7 amp. So 3 of them max draw would be 2.1 amps. That's about 30% of what standard 18650 cells put out. So to sum it up. His system works for 40 minutes continuous before it dies. Planning to use these on a cold day? You're gonna want to use all the heat these can generate...then 40 mins, dead. Better bring another battery pack! Or you can do a 3s3p (costs 3 dollars used cells at 90-100% capacity) and get 3 hours and 30 minutes continuous use on a single charge. Hell if you want to 3s6p you can get 7 hours use max heat or use the PWM for around 10 hours of heat. For the size of...6.5x5x0.7. His system is really limited.
Thanks for the well thought out message! I did it this way because of the job site. I can just keep swapping these batteries as often as I want and we have a ton of them on chargers on stand by. So for me this was super easy and convenient but I obviously see your point!
Jonathan - just the man I need to talk to ! I fly rc airplanes all year. Can I build a heated top and use the LIPO batteries I already use for my airplanes? I have everything from 1cell 2 cell 3 cell 4 cell and 6 cell and from 850 mah all the way up to my 7200 6 cell batteries.
@@EmbraceMaking how did those patches work out for you over time and how long did they stay warm on whatever power source you used? Any chance of an update video??
I’m going to you this for a different project, now is there larger heating pads that you know about ? If so can you share the link. Or can I just use so many connectors and if so how many?
@@EmbraceMaking I have no battery or anything to compare. So what size are you using ? 10,000 ma would be good . Your choose just looking for some idea . Thank you for the help.
Hi can you help me please I am making warming socks for ski season because me feet gets very cold and i am using 2 meter thin wire with a 3.7 volt lithium battery, when i connect the battery the feet gets really warm for a few minutes than the battery gets really warm and the heating from my feet starts getting off , i am using a thin conductor choper for better warming transmission.
Hi I am in the process of building somthing similar but down scale alot total size being between 6 in long by 8in wide with about 100 degrees want to put it in a fabric any ideas would be helpful
Very cool idea (no pun intended). One question about the listing for the pads. "No needling knife to heat the heat line inside the heating cloth, no one in the room strictly prohibit the use of electricity." Are they only supposed to be used when nobody's around?
what kind of run time do you get out of the 12v battery? I'm wanting to do this for some hunting clothing. When I sit in my blind it's usually for 3-4 hours at a time, will these milwaukee batteries last this long?
Hi Andy, you will need several of these batteries to last that long. I usually get an hour or so of run time on a medium setting. The run time is related to the amp hour rating of the battery pack. I believe Milwaukee now sells higher capacity M12 battery packs in the same form factor. Might want to check it out
@@EmbraceMaking right on, thanks for the response. I ordered a 5 element kit off eBay. Comes with a control button and is rated for 5v USB plug in. Plan to run it off a 50k mah power pack. When it shows up I'll test it to see how long it lasts before I see everything into a shirt! Thanks for the awesome video.
What contraption are you referring to? 18V could get pretty toasty at a higher duty cycle.... you can try it out but maybe try it without the vest on first just in case ;) ...
Why not just build it to run off of a basic battery bank the voltage should be enough and with as many of them on the market with the ridiculous mah they have run time could be as long as anyone would need.
The choice for the tool battery was for convenience on the job site (I can just swap in another tool battery that was on the charger, therefore no down time) and it is small and compact. Larger batteries with higher mAh are cumbersome and bulky to put inside a sweater. If you make your own, obviously you can just use whatever battery you desire as you said.
Can't remember off the top of my head what current the battery can supply max... check milwaukee M12 specs online. The ebay controller I think can handle max 8A
The pwm controller does the step-down. The peak to peak will still be 12v, but the duty cycle is adjusted to give a mean voltage that's appropriate. Its explained in the video.
If you run them at the rated voltage of 7V they will just be warm... if you use a 12V battery like I did and control it, you can make it quite hot. Just don't over do it.
@@EmbraceMaking would it be possible to double the amount of pads with your same build without changing anything else? How long does your battery typically last?
You can add more pads in parallel, they will all see the same voltage. However, you have to keep an eye on how much current you are drawing.... more pads = more current and your controller has to handle it. Your batteries will also run out quicker. I usually get an hour or so out of one of these small M12 batteries on a medium heat setting. I believe Milwaukee now sells higher capacity M12 units in the same form factor.
1500 mah? You are not going to be charging a smartphone off that even if your heat pads are turned off. This battery is definitely the weak point of the project, although I understand the choice was for convenience.
It doesn't last for huge lengths of time (about an hour and twenty mins @ 50% duty cycle) but it fits nicely in a pocket and there are many of these batteries around fully charged when your jobsite uses these tools. The other day I used one of these with the newer and larger 6000mAh batteries and it still fits inside my pocket... but a tight fit.
Nah go to harbor freight and get the same thing but much cheaper... Milwaukee tools are fine but why you need to have an expensive battery for just heating!
You could open the battery up and soldier one parallel and then soldier the other in series. While still using all the same connections.. but your vols will drop to 7.2v and run longer.. it just makes it slightly safer as never over heating wires that could melt or catch fire!
Thanks Rapheal! Yes the 12V wasn't ideal to start with but it was convenient as I already have the tool batteries sitting around so I just ran with it :)
Looking to recreate the project and appreciate this content? As an Amazon Associate I may earn a small commission (at no extra cost to you):
1. Heating pads:
amzn.to/3zKDymF
2. PWM controller:
amzn.to/3vrOsev
3. M12 Battery:
amzn.to/3bmbQmH
4. Battery Adapter (Optional):
amzn.to/3bmcbpt
I've made the design files available for the 3D printed parts if you choose to use the same components I did.
PWM case:
www.thingiverse.com/thing:2790920
3D printed Milwaukee M12 Battery Holder:
www.thingiverse.com/thing:2790912
Alternatively you can use one of these if you can't 3D print:
amzn.to/3vukBlz
I am from india reading in holy child english academy, a student of class 9. Your video helped me a lot in making this project. I am thankful to you
great video. An alternative for the heating pads you have are Carbon Fiber heating elements. They can be washed.
Thanks for watching! Yes, I've seen carbon fiber pads and maybe some day I'll try them!
Thanks for the idea, I just got my heated sweater going, added a lighted battery meter and used vaporizer batteries to power it, this sweater is great, thanks!
Thanks Mike! Glad you built your own :)
Any photos
Bro went to look for parts and just bought a heated sweater. I made a heated coverall out of a vintage hot air popcorn maker when I lived in the da that I powered with a dogsled charged generator I salvaged from a military hand crank comm phone. . I was 14 no amazon eBay or market place.
Life used to really blow
Gotta work with what you got!
Embrace Racing sometimes come across a little jagged no insult intended your working knowledge of materials and safety accountability far surpasses my back yard engineering degree with actual knowledge and is most appreciated and educating.
Thank you and I’m sure the next video will not disappoint . Merry Christmas .
Kill crites !!🚀
My husband has a size 16.5 foot. I can't find any heated socks that come in his size. This is very helpful, I had a hard time finding out what actually heats up the clothes
Glad I could help!
They sell carbon fiber filament that can be washed
I've got the same problem glad I found this video!!
I’m building my own heated sweater, you’ve had yours for a year now, I was wondering if yours is still working good, just wanted to know what to expect?
Thank you
Hi Mike, sweater is still going strong! The only issue I had was that I managed to pull two wires out of one of my connectors, but it was an easy fix and since tied a knot in the wire behind the plastic cap to prevent it from pulling out. Thanks for watching!
Embrace Racing I want this suit to be SCOLDING hot,, to the point it’s near burning (to ride on my motorcycle, is it that hot or not really??
Hello, I find this idea brilliant. I would like to make one but with an 18 volt drill battery. I have the adapter on which there is a 5 volt usb output. Will 5v be powerful enough to heat up my heating pads? If not, can I take the current directly from the 18v battery and the PWM will do the job of reducing the current enough? THANKS
Can you share the link for the solder-able molex connector male/female you used?
I believe these are what you're looking for? amzn.to/4eSRdd8 The listing is calling them JST but I don't think they are JST at all... they are just some generic 2 pin connectors - let me know if those are the right ones, thanks!
I originally found this channel a year or so ago from the awesome LED headlights you made, and that really cool muffler box too, and a coworker and I were talking the other day about how hard it would be to make a heated jacket, and tonight i look it up and lo and behold its Embrace Racing ahhaaha. There isn't a whole lot that you can't do is there man? I'm glad you jump in and give every project a go, also love those 3d printed parts, I'm finally making the leap and buying an Ender 3 in the next few days, might have to give this project a go too. I sew for a living so at least that part will be easy haha. Thanks heaps for the videos man, always great content here!
Thanks Sam! You'll have a ton of fun with your printer and you will continue to find uses for it. I love to just try my hand and anything and everything so I keep taking on new challenges and learning new things :) I appreciate you watching my videos!
@@EmbraceMakingOne of my coworkers has been egging me on for ages to get a 3d printer so we can share ideas haha, it really is awesome that the tech has become available to consumers now, it's pretty freeing being able to make virtually whatever you like! Sounds like you approach things exactly how I approach things too man hahaha I love giving anything a go! Hey I appreciate the knowledge that you share, I think you're one of the only guys who has such an in depth look on building mufflers and especially making your own head and tail lights, never seen anyone get in there with those haha, and Ive always thought about giving it a go on my forester but never committed, but after seeing yours, there might just be a project on the horizon :) thanks man! hope you have a great day!
Is there some kind of battery protection? Seems like in the current setup it is very easy to ruin your battery when you over discharge it.
With the original milwaukee adapter it has battery protection circuit built in. My DIY solution did not (at the time) however, I would just turn the power off when I noticed the heat start to get weaker. Haven't over discharged a battery this way but yes it is entirely possible that you can. I have also since then (but not implemented into this project) designed a battery protection circuit for these batteries that works great that I've used on other M12 projects.
Aliexpress sells the heating pads all ready hooked to the battery but I really like him showing how to build my own.
It's nice to know how it works so when you buy it you can fix it :) Thanks for watching!
Great video gona try this asap it gets freezing in chicago...any video on bullet proof vest or bullet proof car window glass thx
Id love it if u made this video again, one step easier for the beginners or more ghettoized version of just joining 2 3.7v 18650 cells, instead of needing a pwm controller. I think itd open it up to the masses even more
Just joining the two cells in series will give you about ~8.4V when the 18650 cells are fully charged. You can just run the positive and negative wires to your heating elements with an inline switch on one of the wires and you should be fine running this much voltage through them but you will have no control over the heat without the PWM controller.
Nice project! It will probably save me some money if I end up doing it myself. One thing to note is that you can see the white stitches on the front of your orange jacket. Color matching the thread will make this mod very stealthy.
Thanks! I've since had a friend clean up the stitching with some orange thread and it looks way better :)
those hree pads seem a bit skimpy compared to the resisrant wire version.does it keep you warm?
Awesome video!!! Thank you! Question, please: Do you have a setup for a 5V power bank for a heated hat/cap? Thanks, again!
hey unfortunately I don't have a 5V setup, but if you find the appropriate heating pads you could just swap it all over and get rid of the adjustable voltage component.
hmmm... don't know if I would use the term 'let's fire this thing up' ...
it caused me an un-cool mental image lol....
I fly remote control airplanes year round. Could I use the LIPO batteries I use on my airplanes to make this clothing ? I have everything from 1cell 2 cell 3 cell 4 cell and 6 cell
and from 850 mah all the way up to my 7200 6 cell batteries.
I don't see why not! Just use a battery whose voltage isn't insanely over the typical rating of the pads
@@EmbraceMaking each lipo cell is 4.2 volts - a 2 cell is 8.4 and a 3 cell is 12.6
so could I use a 3 cell at 12.6 volts ?
See which heating pads you can find first... some are rated at 5V ... you could probably still hit them with 12V but with the PWM controller set really low like 30% ... I can't remember which ones I found but the M12 battery is a 3 cell 12.6V nominal (which is actually like 14V peak) and I just set the controller to a low setting.
@@EmbraceMaking thanks, if I can use 12v then I can use my existing batteries, if not then I can buy a high milliamp 2 cell that is 8v
thanks for your great video ive been wanting to make one ... you might want to update your heating pads link they arn't avl anymore :(
These should work the same: www.ebay.com/itm/Electric-Heated-Vest-Jacket-USB-Thermal-Warm-Keep-Winter-Body-Warmer-Heated-Pads/114586361152?hash=item1aade11d40:g:1fkAAOSw2sRf4A4O
This is a bit of a messy way to do this. Lining the wires at the back of the jacket? Sounds like it could be 1) uncomfortable and 2) you are limited to how far you can stretch the jacket. I don't know why you'd need to complicate it by adding a battery pack to one pocket and a PWM to another. I build battery packs for RC, drones, power packs with AC outlets etc using Lithium Ion cells and there is no need to use drill 18650 packs. There is no way you'll ever need that amperage that they are designed to put out for some heating pads. You could build your own pack using 3200 used cells using 3s3p + pwn module which would only be 6.5x2.5x0.7 inches in size. Basically the size of a small power bank.
This would give you 71 watts and 10 amps continuous vs your drill battery pack of 18 or so watts at 40-60 amps. No drill uses anywhere near that, but these little heat pads will use nowhere near that. You'd need an entire blanket to draw 5 amps. Most these things use is what, 1-2 amps each depending on how much heat they put out. I doubt even that which is high (2amp). So yeah, these ones he listed are 0.7 amp. So 3 of them max draw would be 2.1 amps. That's about 30% of what standard 18650 cells put out. So to sum it up. His system works for 40 minutes continuous before it dies. Planning to use these on a cold day? You're gonna want to use all the heat these can generate...then 40 mins, dead. Better bring another battery pack! Or you can do a 3s3p (costs 3 dollars used cells at 90-100% capacity) and get 3 hours and 30 minutes continuous use on a single charge. Hell if you want to 3s6p you can get 7 hours use max heat or use the PWM for around 10 hours of heat. For the size of...6.5x5x0.7. His system is really limited.
Thanks for the well thought out message! I did it this way because of the job site. I can just keep swapping these batteries as often as I want and we have a ton of them on chargers on stand by. So for me this was super easy and convenient but I obviously see your point!
Jonathan - just the man I need to talk to ! I fly rc airplanes all year.
Can I build a heated top and use the LIPO batteries I already use for my airplanes? I have everything from 1cell 2 cell 3 cell 4 cell and 6 cell
and from 850 mah all the way up to my 7200 6 cell batteries.
That's incredible I'm curious to know how did you get the diameter of the battery in order to design the 3D print 😅
Lots of measuring and trial and error!
Hello i was wondering if you had thought of putting these into a sleeping bag or blanket for camping or whatever???thanks
Sounds like an interesting idea if you can trust it while you sleep!
@@EmbraceMaking how did those patches work out for you over time and how long did they stay warm on whatever power source you used? Any chance of an update video??
I’m going to you this for a different project, now is there larger heating pads that you know about ? If so can you share the link. Or can I just use so many connectors and if so how many?
Hi Desire, I found mine on ebay with a quick search, maybe you can too!
Embrace Racing Thank you
Superb video. Well done; that was really well made content.
Thank you very much!
What kind of time will these stay warm? High low estimations ?
With the same battery I used? Or are you looking to use something different?
@@EmbraceMaking I have no battery or anything to compare.
So what size are you using ? 10,000 ma would be good .
Your choose just looking for some idea .
Thank you for the help.
Very nice.. I was looking into making my own as well. Good Info. Thank you
You're welcome, thanks for watching!
Hi can you help me please
I am making warming socks for ski season because me feet gets very cold and i am using 2 meter thin wire with a 3.7 volt lithium battery, when i connect the battery the feet gets really warm for a few minutes than the battery gets really warm and the heating from my feet starts getting off , i am using a thin conductor choper for better warming transmission.
Do you have any other components other than the battery and the wire?
@@EmbraceMaking no, why ?
Could you use double sided tape instead of pockets?
Probably would fall off over time.
Is the junction you mention at 8:54 the same one that came with the heating pads (that you cut earlier)?
Hi I am in the process of building somthing similar but down scale alot total size being between 6 in long by 8in wide with about 100 degrees want to put it in a fabric any ideas would be helpful
Hi Ron, what kind of ideas are you looking for?
Very cool idea (no pun intended). One question about the listing for the pads.
"No needling knife to heat the heat line inside the heating cloth, no one in the room strictly prohibit the use of electricity."
Are they only supposed to be used when nobody's around?
Lol no idea what that is supposed to translate to... I've been wearing mine since I made this video and I'm still alive.
The version I would make I would want to connect to the 12v jack on my atv.
Would be a great power source!
Hi, the ebay link for the heating pads isn't working. Can you please repost it?
Updated! Thanks!
what kind of run time do you get out of the 12v battery? I'm wanting to do this for some hunting clothing. When I sit in my blind it's usually for 3-4 hours at a time, will these milwaukee batteries last this long?
Hi Andy, you will need several of these batteries to last that long. I usually get an hour or so of run time on a medium setting. The run time is related to the amp hour rating of the battery pack. I believe Milwaukee now sells higher capacity M12 battery packs in the same form factor. Might want to check it out
@@EmbraceMaking right on, thanks for the response. I ordered a 5 element kit off eBay. Comes with a control button and is rated for 5v USB plug in. Plan to run it off a 50k mah power pack. When it shows up I'll test it to see how long it lasts before I see everything into a shirt! Thanks for the awesome video.
Thanks for watching!
Cool also if you feeling cold see the Best heated clothes
www.bestofthetop.com/best-heated-clothes-for-women-and-men/
@@andypetras3966 did you ever get around to testing yours? I'm curious as well
Hey do u have diy heat gloves??
Sorry haven't made those!
How can I see the bord of the battery holder?
With all of the synthol in those arms, how could you possibly get cold.😁
Ha, I wish. No insulation, get cold faster lol. But I promise its all natural!
Can I use an 18 volt Milwaukee battery without that $40 Contraption they sell
What contraption are you referring to? 18V could get pretty toasty at a higher duty cycle.... you can try it out but maybe try it without the vest on first just in case ;) ...
Great job dude
Thank you for watching Luca!
Product name sir
Why not just build it to run off of a basic battery bank the voltage should be enough and with as many of them on the market with the ridiculous mah they have run time could be as long as anyone would need.
The choice for the tool battery was for convenience on the job site (I can just swap in another tool battery that was on the charger, therefore no down time) and it is small and compact. Larger batteries with higher mAh are cumbersome and bulky to put inside a sweater. If you make your own, obviously you can just use whatever battery you desire as you said.
What is the current limit for your 3D printed battery holder?
Can't remember off the top of my head what current the battery can supply max... check milwaukee M12 specs online. The ebay controller I think can handle max 8A
how'd you step the 12 volt down to 7.4 volt?
The pwm controller does the step-down. The peak to peak will still be 12v, but the duty cycle is adjusted to give a mean voltage that's appropriate. Its explained in the video.
Are these actually warm? I looked at these pads on eBay and reviews say they are hardly warm
If you run them at the rated voltage of 7V they will just be warm... if you use a 12V battery like I did and control it, you can make it quite hot. Just don't over do it.
@@EmbraceMaking would it be possible to double the amount of pads with your same build without changing anything else? How long does your battery typically last?
You can add more pads in parallel, they will all see the same voltage. However, you have to keep an eye on how much current you are drawing.... more pads = more current and your controller has to handle it. Your batteries will also run out quicker. I usually get an hour or so out of one of these small M12 batteries on a medium heat setting. I believe Milwaukee now sells higher capacity M12 units in the same form factor.
How many heated pads can you run on one battery?
Depends on the rating of the battery. Bigger battery (more mAh), more pads.
As the previous person stated, it will depend on how much load your battery can handle... how many pads did you want to run?
@@EmbraceMaking I was thinking 8
1500 mha seems pretty low considering I have a hand warmer than is 5200.
They have newer larger capacity M12 batteries with around 6000mAh I think... much better :)
Thanks for video bro.
Very welcome, glad you enjoyed!
dont go through tsa with this
Lol do it,I bet they Paul blart his ass. LOLOL
lol yeah optically it doesn't look like something you would want to take to the airport lol
Dude! Came looking for guide for someone who doesn’t have prior knowledge of these components and etc.. way too complicated..
1500 mah? You are not going to be charging a smartphone off that even if your heat pads are turned off. This battery is definitely the weak point of the project, although I understand the choice was for convenience.
It doesn't last for huge lengths of time (about an hour and twenty mins @ 50% duty cycle) but it fits nicely in a pocket and there are many of these batteries around fully charged when your jobsite uses these tools. The other day I used one of these with the newer and larger 6000mAh batteries and it still fits inside my pocket... but a tight fit.
Would you be able to make me one please
Sorry Luca, I wish I had time but I can't. Give it a try yourself and you should be able to do it!
huge pain in the butt, but good info. thanks
It's definitely a project but it works!
Nah go to harbor freight and get the same thing but much cheaper... Milwaukee tools are fine but why you need to have an expensive battery for just heating!
You could open the battery up and soldier one parallel and then soldier the other in series. While still using all the same connections.. but your vols will drop to 7.2v and run longer.. it just makes it slightly safer as never over heating wires that could melt or catch fire!
Thanks Rapheal! Yes the 12V wasn't ideal to start with but it was convenient as I already have the tool batteries sitting around so I just ran with it :)
The struggle is not real.
Metaphysical solipsism... nothing is real.
Or just use a hot water bottle.
Pro
Ject
?
Bit sus when you have to wash the jacket
Just subscribed...I'd like to see you revisit this.......
Hey thanks! Which part specifically would you like to see revisited? The controller? The packaging? The wiring?