18650 cell recommendation for heated clothing?

[Offroader]

I'm going to make custom heated clothing and need to make a custom battery pack to carry on myself.

What 18650 cells would you recommend for safety, light weight, and capacity.

The amp draw will be very low, the clothing will only run on like 30-40 watts tops. I also plan on using a larger battery pack also like 3s4p for 3 or 4 amp draw..

Could anyone recommend a popular 18650 cell for this? Something lightweight with good capacity.

Thanks.

 

[999zip999]

lunacycle.com has high quality loose cells.

 

[spinningmagnets]

If the amp-draw is less than a constant 5A per cell, there are 3500-mAh cells available now, for maximum run time...Wake and Vape: http://www.wakeandvape.com/batteries/ They have bulk pricing available. The listed prices are only for purchase of a single cell.

 

[Offroader]

lunacycle.com has high quality loose cells.

Thanks, yeah that is what I need the recommendation on is what loose cells to use. I am going to build my own pack.

 

[Offroader]

If the amp-draw is less than a constant 5A per cell, there are 3500-mAh cells available now, for maximum run time...Wake and Vape: http://www.wakeandvape.com/batteries/ They have bulk pricing available. The listed prices are only for purchase of a single cell.

Thanks, so I take it that the 18650 cells usually weigh about the same, but the higher MAH ones have more capacity but have lower amp rating?

So I should look for the highest MAH cells?

 

[spinningmagnets]

I researched this and wrote it up recently:

https://www.electricbike.com/18650-cells-for-e-bike/

 

[chessir]

I have had Milwaukee heated jackets for several years. Would be nice to adapt a custom battery for for extended run time.

 

[Offroader]

I researched this and wrote it up recently:

https://www.electricbike.com/18650-cells-for-e-bike/

wow that really summed everything up really nicely. Almost everything I was looking for to help me in the search.

The only thing missing would be more information about the chemistry differences of the 18650 cells, if they even exist. Like are some 18650 safer than others, or maybe they are all the same chemistry.

I assume they are all completely different than the dangerous lipo turnigy packs I currently use in my ebike.

 

[Ykick]

I researched this and wrote it up recently:

https://www.electricbike.com/18650-cells-for-e-bike/

And how many can packs using the cells you researched and "wrote it up" have you personally constructed? Care to share any details of your efforts?

 

[Allex]

Unless you will use a bms it is a good idea to think about protective cells, so they dont go below the cliff.
Samsung 35E or SANYO NCR18650GA (great cell!) is what you want if looking after high capacity.

 

[Offroader]

Unless you will use a bms it is a good idea to think about protective cells, so they dont go below the cliff.
Samsung 35E or SANYO NCR18650GA (great cell!) is what you want if looking after high capacity.

Allex it seems I can get the 3400MAH Panasonic NCR18650B for $6.50 each.

Are those cells you recommended worth the extra cost of maybe $2.00 each cell?

Ithe 35E samsung cells I can not find them anywhere in USA.

Thanks

 

[spinningmagnets]

And how many can packs using the cells you researched and "wrote it up" have you personally constructed?

None, ya caught me. I'll add that to the article, thanks for the perspective.

 

[999zip999]

YES monitoring BMS hopefully a no brainer quality cells. hopefully. good sales stable if you dress the seller so how many volts how many amps give us something..

 

[Allex]

Pay no more than 6usd for a cell.
Ask tumich in the sales section, he have 35E

 

[Nordle]

I can't help you, but would like to see some pics of these clothes, mainly electric parts. Fits into shoes?

 

[Nordle]

Weight: 6 kg

Thats definitely what we all like to carry with us in winter, we don't even need heated clothing anymore because of the heat we self will produce. thx!

 

[Offroader]

I can't help you, but would like to see some pics of these clothes, mainly electric parts. Fits into shoes?

The clothes I will make will be carbon fiber tape custom clothes. The carbon tape is basically like cloth but heats up nicely and evenly.

I lay out the heating carbon fiber tape to get exactly the heat I want in the body parts or area I want.



I have some experience doing one sweat shirt but now that I know how to do it I'm going to make some nice clothing. They will have lots of adjustments also in temp setting, shutting off areas like the arms of other areas. Many options to get the precise heat I want.

Since I'll be making my own batteries I can make a very large light weight packs for cheap. I will also be able to easily plug into a 12volt converter on my bike so the bike will power everything while I ride. I may also have a 12 volt converter near my computer where I spend a lot of time so that I don't need to run on batteries all the time.

I get cold easily because I am skinny, so I want to be able to be heated on and off the bike, with as much heat as I want and the heat in areas I want distributed evenly through the clothing.

I may be aiming for 30 watts for pants and 30 watts for shirt for a total of 60 watts of heat, but this is all adjustable. I think that will be lots of heat to be honest. I think inside a cool house you only need to run maybe 20 watts to feel warm.

Why heat the whole house when you can just heat your clothing .

Making the clothing is a lot of fun, there is a bit of a learning curve to figure out the lengths and how to wire the heating tape, but it is fun in the end.

 

[BVH]

Here are some relatively high capacity but also relatively safe Lithium IMR 18650 cells that can also give an astounding 20 Amp Continuous discharge. They can be charged very quickly, too. If I were to be carrying any Lithium chemistry on my person, (I do) LiFeP04 would be my first choice, IMR, my second. I modded some of these IMR cells (the previous 2200 mAh version) into my heated gloves packs.

http://www.candlepowerforums.com/vb/showthread.php?397964-AW-IMR16340-IMR14500-IMR18350-IMR18490-IMR18650&highlight=imr+aw

More practical to get from in the U.S.:

http://sweet-vapes.com/aw-imr-18650-3000.html

AW is a very well respected member of CPF and has been for a very long time. Beware, there are lots of Fakes of his particular products. These are a bit pricey but to me, very worth the high capacity and high safety factor they offer, not to mention the very quick charge time.

IMR18650 -3000 (Flat Top) Specifications :

Nominal Voltage : 3.7V
Capacity : 3000mAh
Lowest Discharge Voltage : 2.50V
Standard Charge Rate: CC/CV ( 1.5A - 4A max.)
Cycle Life : > 500 cycles
Max. continuous discharge rate : 20A
Operating Discharge Temperature : -20 - 60 Degree Celsius

 

[Offroader]

After consideration of every ones recommendations, and it was helpful to get me over the 18650 learning curve, I settled on the Panasonic NCR 18650b 3400 cells at $6.00 each.

The reason for this was price, availability, and time to get them in USA. It is getting cold here so I wanted to get a couple packs running quickly.

I would have rather had IMR cells like the samsung 35E, but those were sold out on the forum here and the other recommendations for IMR cells were too expensive at like $13 a cell.

The panasonic ICR 18650b I could get them for $6.00 each at wakeandvape.com. I have some 3s protection boards coming from Ebay.

I only ordered 12 cells to make two packs and this will hold me over until I can get better deals. But I think $6.00 for a new 3400 cell is a very good price unless you get someone dumping them for cheap on the forum, but the high capacity ones get sold out quickly and seem to have low availability.

 

[riba2233]

Samsung 35E and LG MJ1 *should* be cheaper, better capacity and discharge rate.

 

[Offroader]

Samsung 35E and LG MJ1 *should* be cheaper, better capacity and discharge rate.

Thanks, I think USA has the worst selection of 18650 batteries. Most of the deals for some reason are all in Europe.

I can't even find a seller of the Samsung 35E here in USA. The LG MJ1 cheapest price around $9.00 a cell which is too high.

I'm keeping my eye open now for deals that come up and will try and get those cells you recommended.

 

[riba2233]

Well, If nothing else, you could buy them from outside of US, nkon ships internationally, and there are reputable chinese sellers. At least you don't have to pay ridiculous import charges while buying from outside of your country

 

[Offroader]

Well, If nothing else, you could buy them from outside of US, nkon ships internationally, and there are reputable chinese sellers. At least you don't have to pay ridiculous import charges while buying from outside of your country

That Nkon does look pretty cheap and reasonable for shipping. I didn't think the price would be so low for shipping and also for the cells.
USA plain sucks for 18650 battery prices. Generally it seems that USA always has the best prices for electronics.

Thanks for the tip.

 

[bionicdan]

Hopefully 18650's wont be as stiff as lipo but just to let you know I used a 4 cell lipo on on a 12v heated blanked and it nearly caught fire. I guess 15.5v on an item expecting 12-15 saggy volts didnt mix.

So i bought a 24v one and ran 6cell lipo and works great. Only 1-2amps draw due to the lower voltage (3-4 expected at 24v).

Just thought it might be good to know that IMR cells could be pointless and maybe have been counter productive unless yours has some regulation circuit. I have no expertise on this so just an experience and an opinion

Oops just realised you wrote 3s4p and my brain must have seen 3p4s sorry

 

[Neo2172]

Hey Offroader, I was thinking about making some heated clothing myself... Where did you buy your carbon tape from? I have been looking for a less expensive source than carbonheater.us however so far that is the only place I can find to buy the stuff! Cheers!