DIY Lithium Battery - Heat Shrink & Case - Part 4/5

[@EbikeSchool]

I hope you guys enjoyed my How to Build a Lithium Battery tutorial series. If you want to learn even more, I hope you'll consider checking out my Amazon #1 Bestselling book, DIY Lithium Batteries, available in paperback and ebook formats. a.co/iDtWdPX

[@welgil8]

you forgot to put the speed controller! Do you have any video teaching about the speed controller?

[@SripalTAD]

EbikeSchool.com what diameter/ flat width size heat shrink tubing do i need for 13s 5p battery. Is there a calculation. I cant do trail and error i am ordering heat shrink online there are 200mm 320mm 450mm etc.

[@jaydenedmand3514]

Definitley buying the book awesome

[@LEXICOGRAFFER]

Really wish you talked about the heat shrink sizing for help buying the stuff in the right size!

[@dba1222]

Presumably measure the cross sectional circumference e.g. 2*width + 2*height. Divide that number by 2 and that's the minimum overall width of the pvc you need. Or just do cross sectional width + height

[@akinnon2000]

this is such a valuable class thanks ! Usually, i look at those DYI, and im like.. "im not gonna do any of that", but you really makes me want to do this, im evaluating all the tools i may need!

[@joselopez-kj1ox]

I just want to know how big was the blue shrink tube that you use was it 150 MM???

[@diegooolB]

For a pack like that, what size is the PCV tubing you are using? Thanks! Great video!

[@cndbrn7975]

Thanks for the series .. Although this is almost a decade old video, I think it's more relevent today ..

[@oz93666]

That's a nice thermally insulated pack ...fine for cold climates but might cook the batteries in summer ... could put a thermocouple in the heart of the pack , be interesting to log the temp.

[@0530628416]

oz93666 I was thinking about protection also i visualized his pack as a bomb really since all standards point to charging li-ion batteries under temperature observation

[@superburritotime8720]

What size is the Heat Shrink wrap you are using? Thank you!

[@gunasekaran-op8kn]

how to choose the heat shrink tube width size?

[@timothywatson9617]

What size heat shrink is that

[@atrobotti]

good stuff. love the information. the background music is not necessary, at all. almost distracting LOL

[@diydsolar]

Hi, thanks a lot for your video, what about foam temperature behaviour ?

[@zoo4elias]

I think same it will increase the temperature

[@heardandtested]

How many meter and mm heat shrink will u recommend i used to heat shrink my 13s 8p battery pack.

[@damongreer345]

I wanna know the same question

[@superburritotime8720]

me too..

[@TheNickmcbride]

me as well

[@kwoods3379]

Me too he obviously doesn’t care about his viewers

[@calpyro27]

Great video. Do you have any recommendations for a hard case for the DIY batteries? Thanks!

[@jeremyhenderson163]

How do you determine heat shrink size? I'm trying to wrap a 4s battery pack with a radiating shell holder,but I don't want to order the wrong size. I found a formula (A+B=C)X(C X 1.5) and came up just under 158.75mm,but while searching I found that each option had 2 different sizes (Example: 188mm ( Circle with a vertical line through it 118mm) ). I don't want to assume that the line through it means equal to,and then end up with the wrong wrap.

[@laurjoost9317]

For reference: circle with vertical line is "diameter". If the diameter is 118 mm, then the circumference is 370 mm. Half of that (when the tube is flattened on a roll) is 185 mm, close enough that it matches 188 for the most common measurement this stuff is sold by: width when flat. So that is what the 188 mm is.

[@jeremyhenderson163]

@@laurjoost9317 Ah, that makes a lot of sense. :) Thanks.

[@jadeethan]

HI Micah, Somewhat related. Any issues running a 48volt bafang mid drive with the battery like 17ah hours in a back pack? I want to keep the lines of my bike and also manage the weight of the bike. I see many emtb do with with like cyc motor. I'm putting it on a beach cruiser riding on rail trails. thanks.

[@hajerabegum3137]

Sir please tell me how much width of this heat sink

[@instanoodles]

Looks like its about 200mm, I just bought some and it looks about the same size.

[@sherpadog]

How do we measure the already built pack in order to know the correct size of pvc heat shrink we are going to use?

[@silversrayleigh8980]

I think its assumed that you should get a couple sizes or at least one thats TOO big, eye ball it, then cut it to size. Its assumed, I would assume.

[@philmummah889]

Are there any fuses inside your battery pack?

[@kamalsoulbodykiem599]

Thank you very nice videos. If I don't have or even have the box for the battery I create, what's the solution. What I have to do?

[@PreludeDude]

Man those solder connections had me screeching every time :X I would heat everything up more for security against cold welds breaking on your connections. I'm sure the cells can withstand a small amount more heat than you're subjecting them to.

[@Liebefur]

heat shrink tubing diameter??

[@gustavomaas6497]

witch size should i use for a 1400mah 6s battery (40mm wide battery)? tnks

[@keepingup2952]

I would never laugh at your battery holder. Everything you do is cool, bro.

[@randyvalencia1631]

Good day! can i use any foam when wrapping the battery pack?

[@Nate75757575]

Quick question for you, I am a hobbyist and I like to make electric long boards. I have a board that has three 4s 5,000 mah batteries. I have a BMS but I only want to use it for charging not for an output current. I have a speed controller for that. In the first picture you had he charging set up, now if i was to wire up all the sensor wires and wired the negative through the BMS then hooked up the positive to the positive on the battery hypothetically I could use the BMS as a balance charger. I also have as you put it an aluminum cased cooling fan charger that chargers it to the correct voltage.

[@harpuajim]

Great vid! A question about the battery cases that you have linked in the description. Some of them come with a pre-made nickel belt that fits the structure of the battery case. Do you know if these belts are pure nickel and not nickel plated? Also do they need to be soldered down like you would with a nickel strip? Or would the encasement hold the belt in place? Thanks!

[@robertjohn8050]

I recently refurbished a large 72 volt bike battery I need to find out who the supplier for the PVC shrink tubing

[@KarfontaAlec]

Was thinking of just cutting an acrylic case for mine. That way it can still get some airflow. Any issues with this?

[@1971mariska]

So how do you connect the smal display, the 1 where you can see how much power there is in the battery?

[@sammyjjoo]

Between B+ and B-: mine works fine with that battery case , which originally contained a 24V battery (I have 7s)

[@GrubiBG]

One question - when one disconnect and connect BMS - what is the sequence, so old or new BMS is not smoked accidentally? First battery plus and minus to "main* terminals and then add balancing connector (on connect) and first balancing connector removal and them remove battery plus and minus from BMS (on disconnect) or I am wrong? I see post is quite old, but I hope someone is reading still. Thanks!

[@kamote4854]

What if I am gonna put it in a bag, what are the thickness of the wires that I should use?

[@robertjohn8050]

Do you have a supplier for the PVC blue heat shrink for the large 72 volt battery

[@gwizz7804]

I made 7 packs of 18650 (22 cells per pack) and want to hold them together so I can make a 24v battery out of them, can I wrap them in Kapton to hold them together?

[@nelsontongol9520]

sir what is the proper battery charger on 36v 12ah? thanks for the lesson i am from the phillipines and you help me to extend my knowledge

[@corsame14]

Depends on your battery chemistry , if it's 18650 like on the video, use 36v lithium ion charger

[@nelsontongol9520]

@@corsame14 ty

[@niacal4nia]

A 36v battery 12ah with 18650 lion cells must use a 42v charger not 36v

[@rejarvaco3088]

Sir how to put fuse in the battery out put wire? How to choose the amps of the fuse

[@triplemoon69]

that would roast here in Arizona. what do you do for extremely hot climates?

[@benji376]

Laura Downs cool it

[@MeEncantaKiley]

I live in Arizona and just make sure my cells stay under the max continuous current draw. I also just heat shrink it and skip the foam and box. Never had a problem.

[@borat5225]

Set it up in a way so that there is space between the batteries and make it so that air flows between them while you ride. Look up how Tesla motors would do it to their battery backs, maybe you can apply it to a bike.

[@jck9590]

@Jean-Marc Chauveau .Jean-Marc Chauveau...The solution is not to fall for the biggest money & power grab scam the world has ever seen. Man-made Climate Change. Billionaire Globalists are laughing their asses off as you buy up their indulgences- er, Carbon Credits- as they fly around in their G7s. Looking down at you, laughing, as you desperately try to pay your penance to their Climate Church. Humanism is just another religion for men to cling to...

[@eyeonart6865]

What is the cost of building your own. My battery costs $299.00 to replace?

[@rayleclair7133]

Hi I just would like to know if you can use a BMS just to balance the battery using just the C- for charge and discharge instead of using both ports. I'm building a 48v battery 13 long and 12 wide now I don't know how many amps that will be but the balancer I've ordered will be 20 amps. I've had my ebike hook up to as high as 36 amps, 3 sets of batteries in my trailer, I was thinking of making my 48v lithium 14 cell instead of 13 and 10 wide or if i can get enough batteries to make it 12 wide. The extra 4.3 volts would be a sweat spot i think this should not hurt the bike. The lithiums I'm using are from old laptop batteries. If i do stay with the 13 cell 48v and 12 wide I have no idea on how many amps it will put out. Oh ya and one more thing how many milliamps does it take to make 1 amp, I could never figure that out

[@rayleclair7133]

Oh by the way great vid on how to make a battery pack, For the first time builders this is where they should be

[@mhdibusaleh]

Can you please told how many batteries to build 72v 80A and the configuration Thanks for your help and support

[@gwizz7804]

I would go with a 20s configuration. 20 cells in series will give you 60v at the low end and 84v at the high, 74v nominal (assuming you're 72v setup is derived of a 6s car battery system this would do nicely, also if you're using cells that have a 3.6v nominal range than the voltage will be spot on at 72v nominal). Assuming you use new cells of 2800mah you would need 29 cells in parallel but I would go with 30 to make it even. So 30 times 21 equals 600 cells. That's a massive pack though.

[@sylvestersavage1580]

can i use the legg style battery building to make a power wall?

[@EbikeSchool]

Sure, a bunch of people have.

[@laneinman5968]

Good video, nicely done!

[@carlostorrez260]

What size would I use for 3s7p? IE 3x7

[@startcherif]

Hi, very thanks for your video, pls where can find this case and the shrink

[@EbikeSchool]

Hi Cherif, the links are always in the description, but you can get cases here: goo.gl/W2DLmE and heat shrink here: goo.gl/6v1ow9

[@startcherif]

EbikeSchool.com lot of thanks, pls I need to understund how to use paint for your cells configuration

[@roncooke2188]

Do you not have wire strippers

[@RetroElectric]

Thanks for the video

[@simonac688.]

I will be ordering your books soon love your tutorials ...only one boo boo its the music ...is it absolutely necessarie a bit annoying when trying to concentrate on what your doing...( just saying) Thank you

[@djmips]

liquid flux will make your soldering life so much easier and better... But good work!

[@ybarkawi]

I wouldn't be able to build the end part. The hooking up the charger wires you weren't very clear on that very confusing

[@WildernessMusic_GentleSerene]

Does anyone know how much money we save in US dollars for all this work??

[@Zodiac83104]

depends on battery size, anything above 36v is worth saving! im making a 52v 13ah battery and saving 450$ because the batteries i salvaged from a local walmart :D for free :P 2400mah rated 2250 capacity tested

[@kenleckie2359]

Bought bike with 48 v 10 AH looked at the prices of 52 21 Ah battery not paying those price .buying everything I need to build home made welder shrink wraps tape everything including his book on Amazon for $26 Canadian I think I'm gonna turn into a battery building freak LOL

[@jboomhauer]

You didn't use the vruzend pack!

[@yeshecan7]

Very risk job!

[@PaCmEn12]

How do you have electro Hanan אילקטרו חנן fan?

[@haciendadad]

Looks like a bomb to most people.

[@tomscolick3593]

looks like your try to keep the heat in the pack this good for the horth country but not where it hot cloment if you happen to have a heater in that pack make shure you have a way to put out the fire

[@SolarSteve]

Liking the series :)

[@tfkoincognito]

Home Solar Research lol I see what you did there... Nice

[@darrenschroll6461]

Are these "unprotected" batteries to begin with. (Before the BMS)…?

[@onkarshikhare31]

Can we enclose big battery packs in wodden or plastic waterproof case .. will heating an issue

[@Zodiac83104]

yes, you are fine. heat will depends on your loads, add more batteries in parallel to lessen the load of cells thus less heat, and use larger gauge if you are concerned.

[@shikhakhaneja6242]

when you pack the battery in such air tight case then what about the ventilation for the pack where the heat is going which generate during cells charging and discharging,,,,your concept is good but i am worried about ventilation of battery pack

[@eXM8808]

Don't you need a heat sensor for the battery ???, even my electric screw driver has one on the battery .

[@স্বরুপনগরnews]

Sr BMS Lod 220-230/Dc 48Volt

[@troy-US]

#---48 March 22, 2023 Processing $110.97 for 6 items today is 4/4/223 no answrer to inquiry about order status has not answer email about order...

[@alfankosh1]

you soldring - to + you make mistake i have same board i know

[@itaybarzelay2826]

2:48 אלקטרו חנן

[@bmzaron713]

Ha nice catch, what language/brand is that?

[@Mj.Daily.Trades]

But so much confusion I have

[@destructoroso]

Dude, your soldering skills... Work on them please. What you're doing is unsafe

[@AlexEarthshipLeeor]

can you share what is unsafe about it.. time to learn!

[@maxlaval4419]

Love the lazy French

[@mikex8254]

i thought about mounting a wireless infrared camera and smoke detectors inside a ebike battery so you could monitor inside a sealed battery pack in zero light to save taking it apart

[@luongmaihunggia]

Disliked for literally no info on how to determine shrinking tube size.

[@kenleckie2359]

How can he tell you what size to get when you can build battery of a shit load of different sizes

[@michaelgasperik4319]

We would like to know what size he used because I am building a pack that is the same size, and plan to use heat shrink in the same orientation. Signed - ALL OF US

[@Aspire2Cycle]

​@@kenleckie2359well he could have told us what size he used for the battery pack that he was building. Kind of dumb not to tell us!

[@zvischwadron7894]

Here is s stupid question: why is your hairdryer an Israeli company?

[@Escorpio40]

You must be crazy to advise someone to buy at Alibaba, the most deceptive site in the world.Read reviews and you will see for yourself.

[@EbikeSchool]

Nearly every single battery building component I own came from Aliexpress....

[@thermodynamics1110]

what makes them deceptive?

[@tmak3702]

I've been buying from AliExpress for years, never had a problem, I can't say the same for eBay.

[@damongreer345]

what size is the heat shrink

[@MrBrb96]

thanks, great video