Make your own Li-Ion Battery Pack
ฝัง
- เผยแพร่เมื่อ 4 ก.พ. 2017
- More project information (parts list, pictures,....) on Instructables: www.instructables.com/id/Make...
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Parts list (Amazon.de on Instructables, affiliate links):
Aliexpress:
6x INR18650-25R Li-Ion Battery: s.click.aliexpress.com/e/_dY2...
6x 18650 Spacer: s.click.aliexpress.com/e/_dVZ...
Nickel Ribbon (8mm, 0.15mm): s.click.aliexpress.com/e/_d6k...
1x XT60 Connector: s.click.aliexpress.com/e/_d7r...
1x 3S Balance Connector: s.click.aliexpress.com/e/_dXm...
1x 3S BMS: s.click.aliexpress.com/e/_d7m...
Kapton Tape: s.click.aliexpress.com/e/_d9E...
16 AWG Wire: s.click.aliexpress.com/e/_dXL...
Ebay:
6x INR18650-25R Li-Ion Battery (USA): rover.ebay.com/rover/1/711-532...
6x INR18650-25R Li-Ion Battery (Germany): rover.ebay.com/rover/1/707-534...
6x 18650 Spacer: rover.ebay.com/rover/1/711-532...
Nickel Ribbon (8mm, 0.15mm): rover.ebay.com/rover/1/711-532...
1x XT60 Connector: rover.ebay.com/rover/1/711-532...
1x 3S Balance Connector: rover.ebay.com/rover/1/711-532...
1x 3S BMS: rover.ebay.com/rover/1/711-532...
Kapton Tape: rover.ebay.com/rover/1/711-532...
16 AWG Wire: rover.ebay.com/rover/1/711-532...
In this project I will show you how to combine common 18650 Li-Ion batteries in order to create a battery pack that features a higher voltage, a bigger capacity and most importantly useful safety measures. These can prevent an overcharge, overdischarge and even a short circuit of the batteries.
Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod (incompetech.com) - วิทยาศาสตร์และเทคโนโลยี
![เกิดใหม่ทั้งทีก็เป็นสไลม์ไปซะแล้ว ซีซั่น 3 - ตอนที่ 59 [ซับไทย]](http://i.ytimg.com/vi/GmW4a8prWUQ/mqdefault.jpg)
When soldering directly to a battery cell, it works best by using the largest possible soldering iron tip. That way there is less chance of overheating the cell. A small tip may well be hot enough, but will take much longer to heat the mass of the end of the cell, and more heat will have time to migrate into the cell instead of being concentrated at the very end where you are trying to solder. This is especially noticeable on the negative pole of the battery, which does not usually have a raised button which protrudes from the end of the cell; and therefore has greater mass right where you need to heat it. The positive protruding button is always easier to solder.
Albert Pelletier
Makes sense. Would 60 watts soldering tip suffice?
@@emersonsrandomvideos248 I use an 80 watt, but it should be fine
Also, you should discharge the battery to 3.5-3.6 v/cell to lower the heat damage to battery before the heat soldering.
@@emersonsrandomvideos248 Yes is more then enough, i use the Miniware TS100 solder iron on 24v, and that gives it 64w, i use the biggest solder tip i have for it, i just made a 24v battery Pack.
www.miniware.com.cn/product/ts100-soldering-iron-b2-tip-hot-air-soldering-station/
@@breezeli6233 Never done that, and they still work perfect, they still have each 3400mAh.
What I like most of your videos is that you write down also formulas, all doubts are sorted out this way❤️ and you make the whole video nor too slow and neither too fast to follow. It's just perfect
just realized you're getting close to 500k subs! it's nice to see that there are still some channels with a lot of subscribers, that actually deserve them.
GreatScott! you are the greatest.
I just ask you to keep on making such high quality material.
So far thank you very much.
Nice project. I'd probably skip the hassle of tab welding or soldering and just use two of the 3-cell holders from eBay. It wont be quite as compact but it will get the job done. Maybe replace the included wires with thicker ones.
Gadget Addict Those battery holders have a ton of resistance! I have some here laying around and I tested. He needs the tabs.
Did you replace the supplied wires on the battery holders?
It's not just the wires, the connectors inside the box and even the springs can't handle any decent amount of current.
Telmo Monteiro the holder has resistanse? Wtf?? Those holders are spacers, aka for better cooling. He has a closed box, aka no air anyways. He does not pull close so any current, so the batteries wont heat anyways.. bruh no need for those holders
Yes, but a balancing BMS board is mandatory, and the cell holders are dangerous as they can rip the upper casing of the battery and can short out the battery.
I love your videos. I have a strong recommendation for future pack builds: Add paper (something that won't melt) between any high-amp wire laying next to a cell. It's also a good idea between the ribbon connectors and the edge of the cell on the positive ends. This reduces the risk of a hot connection from melting though the insulation and creating a short. This exact failure happened to me once and I narrowly avoided a bad fire. After this I immediately understood and appreciated the purpose of the paper shims found in many OEM packs.
the 500k are approaching quickly. Congrats.
I did not know how to setup the balance connector, you delivered with your great content once again. Thanks!
if this guy and colinfurze would meet, they would make a fully-functioning Iron-Man suit :D
Sir how can I convert 3g/4g internet wifi dongles to a GPS tracker for pets
Or
How to make one GPS tracker
Sir how can I convert 3g/4g internet wifi dongles to a GPS tracker for pets
Or
How to make one GPS tracker
just buy the tracker, will be more practical and economical
I think it should James Bruton and hack Smith should be there as well for it to work properly and accurately
*_Hacksmith_*_ has entered the chat_
This helped me a lot scott! Thanks for making this awesome videos
You're welcome
hey i am not expert but i advise you to use cooper elctrodes
GreatScott! uhm do you have a video on making your own ups for ac voltage? If not would you consider doing one?
A project like this is what got me into circuits. Still working on mine have over 500 cells i'm putting into 6S configuration.
Liked the min/max testing and bold bridging to the secondary method...3d design and printing case for the win!
Note that a lot of LiPos don't like it when you solder to them, so use a very high soldering temperature with lots of thermal mass, work quickly, and then use some damp cloth to quickly cool the joint down to safe temperatures. If in any way you can, use welding for the tabs instead. Its a nice little project to create a capacitor based welder for tabs anyways.
Your my favourite electrical TH-cam to watch please keep up the great work 😀
Thanks :-)
Ive watched hours and enjoy your direct and informational style. Thank you Scott!
Good Job, well done! I like watching your practical and very informative clips. Cheers
Fantastic and super clean-looking! Great project, as usual
Very useful DIY, thanks for sharing ..
please make video of how to make battery management system circuit it will be vary helpful.
and THANKS for this one.
Love your work! Thanks for taking time to post & share. Want my HS students to build some of your projects.
Thankyou so much!!! Always wanted to learn how to do this, every one of your videos are so helpful!!
I like it! Very helpful video.
Great scott logic: I need to build solder a batterypack, lets build a fucking spot welder lmao hahah ly man
Mathis 😂😂
Sir how can I convert 3g/4g internet wifi dongles to a GPS tracker for pets
Or
How to make one GPS tracker
@@gmmrk35 you can't
spot welders are the correct tool if you're going by the book, they don't heat the battery up enough to risk damage. so it makes sense he would try that first.
Great video upload, Ive always wanted to tear apart some old laptop packs and dissasemble for the 18650 cells and reassemble in a manner as you have done. Gotta love Hobbyking! I have the same charger for my Lipo's.
keep up the hard work, I'm learning a lot of useful information from you. Thank you.
I've been looking for a better video and then my phone rang with ur notification... like like like
if you could do a video how to salvage amp from old tv it would be awsome :D
Great tutorial/overview! Thanks! Could you perhaps also do a tutorial on how you measure the current draw for your entire circuit (including power supply), so measuring from 230v instead of connecting metering after the PSU. Would be really helpful! Love your channel!
WOW i was waiting so long for a video like that thanks man!!
5:25 " by simply glueing it, and the project is complete" I just thaught that he will say that XD
how notice that scotte always says in the beginning of video "I recently"
Richtig Gutes Erklärvideo 😎 ..direkt in Meine "Elektrowissen" Playlist gedropt🤩.
Danke Scott
I was really desperate for this piece of info thank you so much sir
At least you didn't do the third *really* not recommended option; taping them
seems quite safe. :-) But I am not sure if Jordan means the use of sticky tape or cutting taps and using screws. :-)
@@renzevenir4853 I've done that, it's waaaayyyyy too painful
What’s wrong with taping them
can you please do a video on how to check if the battery is damaged so as not to charge it?
you can use a battry charging and discharging station to find its rating and if its lower than average its probably damaged
You sir have prefect timing , i have just received the last few items to build my custom HyperCube 3D printer ( core xy printer made from 2020 aluminium )and wanted a project to do with it once its done !!!!
Nice work! Looking forward to the portable lighting project
XT connectors! great choice!
IRFZ44 But a bitch to connect and disconnect.
Why? What makes it better than a screw, jst, or molex?
I built my own DIY battery tab welder out of car battery and some beefy MOSFETs controlled by a microcontroller. When I press a foot pedal, the microcontroller gives a double pulse with configurable length to the MOSFETs and they then short circuit the car battery through some beefy wire and and hand held anodes, causing the pulsed current to weld the nickel strip to on to the battery tab. It also won't trigger a new pulse before the foot pedal is released for a second at least.
I am an embedded systems engineer with experience in motor controllers, so microcontrollers and MOSFETs are quite familiar to me.
SiMoS MCmuffin Alternatively search for ‘atv starter solenoid’, and again with a car battery for a source - i used sharpened TIG welding tungstens as a tip.
I waited for this!
Would be nicer if this was closer uploaded to the electric longboard video (becouse they complete each other).
Good video helped me a lot :)
Weiter so :D
Great little video and batteries have changed since i did li-ion cell when first came out for my RC cars...only suggestion if you have to solder is to buy batteries that already have tabs slightly more expensive but considering possible loss due to overheating its not bad :)
Hi. Good information. Can you just tell me why that balance connector pins are provided outside your battery bank? To balance charge the batteries you have BMS right & you connected those balance pin of BMS to the each battery.. Then what is that balance connector at the outside of the Battery bank box.
I also have the same question
Because the BMS board does not balance. It cuts the charge when the first battery reaches 4.2 Volt and the rest then remain where they are. So it is not a BMS board, but a kinda protection board.
@@dougerrohmer It *IS* a BMS Board !!! It does not have the "balancing" option...
Neat, I made a very similar video about a week ago (Made a 16v 10,000mAh battery brick), using one of the ebay spot welders. I finally beat you to a video! Lol - you went ahead and added a BMS though, which is a really good idea.
Whattttt Is An Equalizing Charge, Why Is It Neededddd, And How to Apply One To a Lead Acid Battery > t.co/3ycayBV4e1?hwhqn4BmC2Isdd
Eunice Deines I think it has to do with charging all the batteries in a pack equally, but that is only a thing to consider with packs consisting of individual cells, not like the lead acid battery. I am not sure, so you should double check
Hey! Would it be possible to add a power inverter to this power pack? so that the power adapter
would be able to Power different small appliances like Fans or chargers.
Great video, I recently made a very similar 11 volt power bank for my Rc vehicles, but it had half the amount of mah.
A great and inspiring project! For convenience though, I would have preferred to be able to charge the pack from an 5V USB charger, which usually is more likely to be available when not at home.
Should build one that has a bms that can balance charge
JT Lowry if I understood him right, the balance connectors added at 5:57 make the BMS balance charge the pack. But I’m not sure. Could someone explain please?
@@knodelcrafter6888 he literally said it can't balance charge
Max745 board has balancing capability. Around $10 on aliexpress
32 views in 5 seconds. mind boggles.
Dave Webster The early views are because Patreon donors get access to videos before they release to the public.
Jon Vannatto mind unboggles thank you!
the patreon people dont watch the same video on youtube so their views dont count for this one
mind reboggled again
Benjamin Buljevic I think you may be wrong as Great Scott has a response comment below referring to "then the video goes public in 2 hours" It was posted before the video was posted to the public.
Benjamin Buljevic mind double double boggled as I saw the preview of your comment and came here to say mind boggles again, but you had already said it.
your hand writing is amazing!
Great video Scott !! Do the right thing and continue the good work !
"minus" is usually called "dash" when it isn't in a calculation ;)
ex: ncr dash 25R
my number is 867 minus 5309
2:48 klemt a nail ? Germish !
clamped
So many useful information in 1 video... Thank you Scott!
No problem
Watched the video up to eight times now, it´s getting more!!!!
Nice! Now i just need 6 Li-ion cells, and a 3D printer!
4:19 CmonBruh
Could have used 4:20 scumbag
Nickel please! :D
@@mashedpotatoes5323 no he couldnt
Hi Scott! First of all congrats for these really helpfull videos.
And a little question, can we use these pack in order to power the E-Longboard?
Great video, using some of the pointers here for my own 18650 battery pack build!
discharging an 18650 down to 2.5v is not good. i thing the 2.8v is the extreme lowest point
astafzciba nope laptops bms actually discharge them to 2.5 that's safe I have tested this
3.2v is good for the battery to last for years, 2.5v will kill the battery in a short period of time
example for sony cell on page 8 and 9
www.produktinfo.conrad.com/datenblaetter/1400000-1499999/001499574-da-01-en-SONY_LI_ION_AKKU_18650__3000MAH_30A.pdf
It doesnt look like there is any point discharging beyond 3.1 V as the voltage is already plummeting by then.
Theres good information here on charge policies for li-ion longevity:
batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
The advice there for maximum longevity is not to charge them beyond 80% state-of-charge often, and if stored, store them around 40% soc. Also, heat is big a factor especially when fully charged. That's very different from the popular idea that they should be kept topped up.
nightmare in action nighmare in action laptop batteries fail all the time, I don't go below 2.8-3v
I don't want to make a negative comment on your pronunciation, so let's call this constructive criticism: To avoid confusion you may want to say "dash"-25R instead of "minus"-25R because the word minus makes absolutely no sense in a model number. That's all. Keep up the good work and amazing videos :D
Damn The Video came 2 months to late. I built a boombox with li-ion batterys and had to find every Information by myself about charging bms and so on. Now you answered all My questions just a Little Bit too Late.
I Love your Videos they are absolute Amazing.
Mach so weiter ;)
Thanks for making this.
Might try making one to use for projects!
=D
lol greatscot is still alive?
I make one video every week continuously for two years now. So yeah, I am still alive.
oh I disabled the notification ^^ my bad. love your videos though ^^ auch wenn dein Englisch nicht ganz perfect ist :)
his english is perfect :)
I ment the way he pronounces the word of course :)
No, I said no posts on social media. There still was a Q&A&C video.
am i the only one who hears "nigga ribbons"
no. hundreds of others did too.
I did
This is one of the best videos in recent time :) I like videos like this :)
Awesome! I like your neat and meticulous work!
One simple rule
Look what Samsung does
Do the opposite
💥
I really don't understand. They made a mistake (even though it wasn't even them producing the batterys), and fixed it. Unlike Apple, which still didn't fix the iPhone 6S Touchscreen IC problem, even though it's fairly known.
Phil.R. lol, im watching this on a note 7
Oh stop it....everyone has had a bad supply of batteries. Dell, Sony...
They fixed it. Life goes on.
Ado Gamer R.I.P you then lol. Hahahaha
These samsung 25R5's have been pushing to ~20A CDR without adverse effects.
Thank you so much for this toturial you made me save so much money. If it weren't be you I had to buy expensive Li-po batteries for my project
Scott, using liquid flux before soldering makes soldering much easier and faster. I've added solder to the positive terminals of 18650s to make them fit better in my flashlight and it only takes 3-5 seconds to add the solder when flux is applied. No sanding needed.
Exactly what I was looking for.
Thanks scott
I have a lot of 18650 bateries, this will help me a lot. Thank you Scott!
You're welcome :-)
Cool video, just the inspiration I needed to wire up these LEDs to my bike.
I love the new video introduction and they new format
Mate:)
That was an exceptional instruction video.
Thanks
Thanks, Scott! I want to refurbish my laptop's battery (instead of paying 5 times more the usual battery price for my designer laptop battery), and your video comes really handy. By the way, make a video about refurbishing laptop battery!
so clear 3d print 👍👍 good job
Vielen Dank für deine Videos! Sie sind immer sehr informativ und interessant:)
great vid! you just showed me how to connect my lithium ions together! and that thick wire does make since lithium ion can produce a lot of amps lol
you have the greatest handwriting in the world!
Very good video i love your projects!!!
hey greatscott, you should make an capacitor discharge tab/spot welder as your next project!
great video and awesome details in the description for URL and purchase locations
Glad to see u back bro
I wasn't gone
You make really helpful videos!!!
You should look into a dual pulse spot welder. It's a quite simple idea using supercapacitors
Great video, thanks from Colombia.
3/4" Schedule 40 PVC pipe can be used to make 18650 battery holders, although the inner diameter is slightly too large. A few strips of thin plastic or even three dots of hot melt glue on the inner surface will ensure that the battery stays centered. If you are concerned with airflow, a few slits lengthwise in the section of pipe, but not all the way to the ends will help. 1/2" Schedule 40 PVC is a bit too small, but if you have the capability to drill it out to 23/32", it could work.
When I needed to make a battery holder for an 18650, I made it out of PVC pipe or wood with a bolt in each end that combined with a lead slug acts as a terminal for each end.
simply neat and polished video
Great ! Thank you Scott
Great video as always, thanks alot!
Thanks! Now, a couple of things: First never glue a BMS on top og the batteries. The negative cylinder of the battery is only isolated by a thin layer of paint. Shorten this might be bad (Speaking of experience) Never use melting glue on the BMS. It gets so hot, the glue will melt. Keep it up! Lots og great ideas!
Have you thought about limiting the current on the primary coil by adding a series resistor ? Much easier to control the current that way instead of adjusting the output voltage
Realy interesting video! Your videos are extreamly helpful for me.
You made the video about BLDC motors, which was very interesting. However, I asked myself how does these ESC work and is it possible to build one myself ? It would be an interesting video :)
hi @greatScott!, your videos are awesome. Regarding this video, I understand that the BMS also can charge the battery pack?
Great video, I'm thinking on making LED lights in my school cabinet, but the problem is with powering it. I guess this video solves the problem, i just have to get in hold of some Li-On cells.
Hey @GreatScott!, im wondering how long do you keep the soldering iron on the cell while soldering? Are you not afraid of damaging the cell in the process with high temperature?
this was a great project I sure I should use this for my Raspberry Pi laptop I'm making
Hello Scott, please make a video about EMP devices, you already have the arc generator. Keep up the good work :)
You are simply awesome ....i love watching ur videos
great content & video editing!
I really Love your content friend!
your ideas are innovative