Part2b/2 How to make a 4s Li-Ion battery from 18650 cells, DIY tutorial.

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Hello friends this is the third part of the Li-ion battery series
In this part we going to proceed with making a 4S battery pack.
0:45 - Battery schematic.
0:50 - Gluing the battery cells.
1:12 - Gluing the battery packs.
1:37 - Cutting the nickel ribbon metal strips and arranging them on the battery.
2:04 - Welding the strips on the battery.
6:50 - Soldering the battery terminal cables and XT 60 connector.
10:21 - Installing the balance port and cables.
21:07 - Balance cable pins layout.
15:07 - Charging the battery.
Still not conviced and want LiPo's instead, great no problem check these ones I used before:
hobbyking.com/en_us/customer/...
Product links of items used:
Soldering Iron: www.banggood.com/custlink/Gvv... or www.banggood.com/custlink/v3G...
Battery plastic holder: www.banggood.com/custlink/3DK...
Batteries: www.banggood.com/custlink/vD3...
Battery Spot Welder: www.banggood.com/custlink/KmK...
Nickell Ribbon Strip: www.banggood.com/custlink/3KG...
Glue Gun: www.banggood.com/custlink/GDK... or www.banggood.com/custlink/v3G...
Kitchen Scale: www.banggood.com/custlink/3mD...
Balance Cable: www.banggood.com/custlink/mvD...
XT60 w/Cable: www.banggood.com/custlink/mvm...
Solder Wire: www.banggood.com/custlink/Dm3...
Other useful accessories: www.banggood.com/custlink/DGK...
www.banggood.com/custlink/G3v...
www.banggood.com/custlink/KGK...
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19 июн 2024

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Комментарии : 51

@__-hh3gt 3 года назад

Dramatically fantastic. Thanks

@garrettmcfarlane1901 2 года назад

Well demonstrated and explained. I could follow every step.

@MyOwnCrusade 9 месяцев назад

Your welder looks like a spider going through a tough break up. He is still at work getting it done, though, and i respect that. Hang in there, bro.

@moturcu4226 3 года назад

Best battery videos on youtube! Thankyou

@maixechrys6264 3 года назад

Glad to know it helped!

@bulldogpatje 3 года назад

Very Very Good explenation

@missiletm 3 года назад

Great explanation. One tip for you, get some flux, it will make your solder flow much better requiring less heat and stronger bonds. A couple of your joints looke like cold joints which are a lot weaker. 👍

@maixechrys6264 3 года назад

Always appreciate helpfull feedback for improvement, I ll give it a go thank you!

@steliostheofanou1368 2 года назад

ωραιο βιντεο μπραβο αδερφε

@maixechrys6264 2 года назад

Ευχαριστω πολυ!

@MyspiritMysoul 2 года назад

Can you show how we can make a 14.8V pack of 4 cells (use only 4x18650 and set them on a series raw) using balancing connectors and have them tested in an Imax b6?

@maixechrys6264 2 года назад

Απλα χρησιμοποιησε τις πρωτες τεσσερις μπαταριες και ενωσε τα θετικα του συνδεσμου ισολογισμου στα 4 θετικα των μπαταριων οπως απεικονιζονται στο 0:39.

@milesmoore5422 Год назад

So it does not matter where the BMS wires are located on the battery ?

@omaralvarado1080 Год назад

That is great, but it’s better if they are spaced out

@starlord8200 Год назад

Why you connect balance port without PCB?

@maatiraouki5183 Год назад

👍✌️❤️

@mikehalvorsen4788 2 месяца назад

Hey. Can you build your battery pack on a upward scale? Like 4 , then 4 on top and then another 4 on top etc.... let me know and how. Thanks 😎👍🇨🇦

@maixechrys6264 2 месяца назад

Hello thanks for stopping by, what is the required voltage (3s,4s or more)?

@mikehalvorsen4788 2 месяца назад

What I'm trying to accomplish is making a homemade scooter and hiding the battery packs in a " dummy" frame. I want to have maybe three steel cylinders with the batteries incased and attached together. It will be a set of four on-top another four, upward. My question is how would you a joint the batteries going upwards?

@alfredbriffa1692 Год назад

How is it you did not fix thermister or temperature sensor, please

@egtreadway4232 4 месяца назад

IM building this same battery pack for a rc plane, what gauge wire do you recommend , sorry cant tell watching video. thanks for any advice

@maixechrys6264 4 месяца назад

15:44 Rule of thumb will be 10% above the maximum amperage that the battery can deliver (its burst C rating). I believe that since rc planes dont consume much current you should be fine with 14awg or 12awg.

@egtreadway4232 4 месяца назад

Ok thanks, thats a big help my planes fly around pulling 6 to 10amp but on full throttle and during launch I see 30 to 35 amp draw

@chongshenchang9367 2 года назад

Sir, can we mix cells of different mAh in Lithium pack..??

@maixechrys6264 2 года назад

No, it is not possible and it is very dangerous if you do so.

@chongshenchang9367 2 года назад

@@maixechrys6264 Ok. Thanks.

@maixechrys6264 2 года назад

@@chongshenchang9367 thank you, please make sure you watch part 1 and 2 as they cover anything you need to get started.

@chongshenchang9367 2 года назад

@@maixechrys6264 Ok Sir..

@neilgahapon3310 3 года назад

What charger do we have to use? Is it okay to use Lipo balancer charger? Pls notice🙏

@maixechrys6264 3 года назад

Well no the charger has to have a Li-Ion option, voltage ranges are not the same.. I mean it could be done but expect funny results in a few charges!

@neilgahapon3310 3 года назад

@@maixechrys6264 so what type of charger can I use?

@maixechrys6264 3 года назад

@@neilgahapon3310 Any charger that specifically states it supports Li-Ion batteries. Whould you like a link.

@neilgahapon3310 3 года назад

Okay thank you

@strawhat.eth. 4 года назад

Helo can somebody help me i have a question i have a ebike 240watt motor the standard battery is a 24v 10amp now i want new battery en i see 18650battery of 10 to 35 amps can the bike handle 35amp battery (i need a 7cells battery en wand to put in itch cell 6 battery that makes 3.7v itch cell en total of 24v 30amps)

@sphamandlas.madlala6530 3 года назад

It should be fine with a proper BMS, the motor will draw the current it requires from the battery i.e. 10amps at 24V. keep in mind that the motor will draw current to it maximum power which in your case is 240watts, what im implying is, as the pack voltage decreases the amount of current the motor draws will increase hence why you will need a proper BMS to protect the pack.

@maixechrys6264 3 года назад

@@sphamandlas.madlala6530 Sorry for the late reply as long as the voltage is the same as the stock battery and the amp draw does not go beyond the capability of the battery (C rating) everything is fine. Hope you already figured out a solution by now, please share if your project worked!

@gargolaconrad3188 2 года назад

Wouldn't this be an 8s battery since you are using 8 - one cell batteries? I see other 4s Li-ion packs with only 4- one cell batteries.

@maixechrys6264 2 года назад

They are connected differently(series/parallel) please watch part one to get a better understanding.

@gargolaconrad3188 2 года назад

@@maixechrys6264 OH OK, I'll watch part one, thanks. I'm just learning about battery packs.

@maixechrys6264 2 года назад

@@gargolaconrad3188 no wories mate my bad I hadn't put a link.

@tonymontagnard1597 3 года назад

14,15 volts total 3,7v x8 = 29,6 volts why only 14,15?

@maixechrys6264 3 года назад

Hello thank you for your question. So assuming you are reffering to the thumbnail photo that is depicts a pair (2) of batteries connected in parallel, each pair consisting of 4x3.7 volt cells so a total of 8 seperate 18650 batteries for both packs. Each of the 4x18650 batteries (a single pack) are connected in series, the voltage is the sum of the batteries included in the pack (4x3,7v=14.8v) and the capacity is the same. (assuming the nominal voltage of each of the 18650 batteries to be 3.7v, unless you want the min 2.9v rating or max 4.20v) Vice versa for the parallel connection between the two packs that give no increase in voltage but doubles the capacity. I hope this clarifies the issue but if this is not what you meant please tell me what is the schematic you are reffering to in the timeline. Stay safe!

@maixechrys6264 3 года назад

Also please make sure you have watched the previous videos in the series Part 1 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-IGz57RVNnPc.html Part 2a ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE--npLQM29Tv8.html

@balasubramanianganesh944 3 года назад

Hello friend, I think you're messing up with your battery. Li-ion cells must not be exposed to long duration heat..you see, it destroys the capacity of the battery.

@maixechrys6264 3 года назад

Yes, long duration heat should be kept to a minimum.

@m3chanist Год назад

Your schematic doesn't match the battery as built, luckily. It doesn't show the parallel connections of the middle two cells in each 4S section, only the outer two of each. If it was made according to your schematic those cells wouldn't be balance charged and would end up as a disaster fast.

@FraLin 9 месяцев назад

Is this for children who start learning English?

@maixechrys6264 9 месяцев назад

Care to elaborate further?

@vikasshukla85 2 года назад

👍🏿🙏🏾vjppjio

@alex13261911 Год назад

Total wrong,every battery pack need a BMS 😢😢😢

@maixechrys6264 Год назад

Its good to have, not a must please don't missinform. Tons of batteries exist in the market without bms. Even lipos, do you think a phone batery caries a bms?!