Super explain thank you sir 🙏

Thank you

U can put heatsink on this spot welder , or active fan.

@stevenc22

3 жыл бұрын

Maybe. Have to be careful not to short out traces with hyer sink. I just used it on 20% power and it made it pretty fine

Great video, thank for showing the process! What sort of charging board/BMS do you use for such a battery pack?

@stevenc22

Жыл бұрын

I usually use Daly BMS. Good brand, fair price

@steverich571

3 ай бұрын

How do you charge the battery, I see the discharge cables connected. However, how do you charge it. Ie, where are the charge wires?

I was about to take apart someone electric scooter for a 36vbattery, now Ill just make one.

How do you go about testing the cells? Is it enough to balance charge them before installing the bms or is more involved testing needed?

@stevenc22

2 жыл бұрын

When you aren't sure about the quality of the 18650 you can use testers that cycle the battery and check capacity. If you dont have a tester charge them full and let them sit for a week. If the voltage stays the same the battery is fine and not self discharging. If the voltage drops, don't use it, it's self discharging and damaged inside.

Do you do a breakdown of where you get all these parts.

@stevenc22

4 ай бұрын

Link to the spot welder in the description. BMS i always use Daly BMS. Cells you can buy from Jag35 or Battery Clearance warehouse.

Questuons - If 12volts battery is 3S, (4.2 x 3 cells = 12.6) , then 36volts battery should be multiplied by 3 which is 9 cells 37.8volts right? then why is it 10s? Why is extra line added to it? Another question is - Is it true that you should keep all the balance leads same length? They say if you trim them big or small, the cells will receive uneven amps and get charged unbalanced.

@stevenc22

2 жыл бұрын

When a 18650 is empty, it's 3v. If you did a 9S battery, empty your battery would get down to 27v which is too low for 36v equipment. The median voltage of a 18650 is 3.6v and battery sizes are calculated using the median voltage. 10s x 3.6v is 36v battery. Regarding the balance leads. While it is technically true that different length leads will have different resistance and therefore balance, most BMS are not that accurate and use such low balance currents that it won't matter. I cut my balance leads often.

@KetansaCreatesArt

2 жыл бұрын

@@stevenc22 , oo good explaination. I didn't think about it before. Thank you 😊

with out burning up my new ebike ?

Could the same configuration work with 6 batteries or does it have to be connected differently? Trying to get more mah. So would it be called 6p 10s?

@stevenc22

3 жыл бұрын

Of course. You can add as many parrellel cells as you want just as long as you keep it 10s for 36v. 5p10s or 6p10s or 7p10s ....

What's the amp hours

How do you charge the battery, I see the discharge cables connected. However, how do you charge it. Ie, where are the charge wires?

@stevenc22

3 ай бұрын

You can charge through the same Cables

so, common port is ok? bms*

Can the battery be charged directly with the xt60 connection you have on there Thanks for the informative vid, i am about to build my first one of these

@stevenc22

2 жыл бұрын

Absolutely. That's often how I charge my batteries.

@rgthomson1

2 жыл бұрын

@@stevenc22 Perfect thanks

@visisutomekro8634

6 ай бұрын

@@rgthomson1so how did it go? I’m about to build my first and some info would be helpful

@rgthomson1

6 ай бұрын

@@visisutomekro8634 All rather easy, main thing is to buy all bits compatible together

3 years 2 late but the mistake whas the bridge on the negative side

can i change from 36v to more amps and volige mine is a 36v 8amp 350 battery any help would be great ! THANKS

@stevenc22

2 жыл бұрын

What do you mean exactly? A battery is rated for it's voltage and max amps. It should not exceed 8 Amps. You can get bigger batteries with higher amps.

7s bms for 10s pack? omg

I want to make the same 36v battery but 50 cls. Can you please tell me which kind of BMS I need to buy. Thanks

@stevenc22

2 жыл бұрын

You need a 10s bms with the amp rating of the device you are going to power. 30amp/ 50amp ect. Just search for a Daly 10s 30amp BMS

@SuperGalaxymedia

2 жыл бұрын

@@stevenc22 thanks

i ve got the same spot welder but it burns throught the plates, what voltage - amperage are you using ?

@stevenc22

2 жыл бұрын

12v at 400amps. I'm using a 3s 5200mah 80c battery. What battery are you using?

@RazvanSecu

2 жыл бұрын

@@stevenc22 noticed that in your video, i am trying with a 3s 650mah 100c lipo but it still burns through the strip. Might have bought a low quality strip, i guess

@stevenc22

2 жыл бұрын

@@RazvanSecu make larger custom needles. It will spread the current over a larger surface area

@slyztercoreveanged3175

Жыл бұрын

@@stevenc22 the 1st one i hear thanks for the tips

What do you use to power the BMS? Would a 42v 1.5A Dc output work for 10S BMS?

@stevenc22

8 ай бұрын

You don't power the BMS. The BMS stands for battery management system and it connects to the battery and is self-powered from the battery

@timothyodum4994

8 ай бұрын

What current do you put into the BMS to charge the batterys its connected to.@@stevenc22

What's your opinion on cell level fusing do you think it's necessary?

@stevenc22

Жыл бұрын

I do cell level fuse on my large power wall build. On an ebike, the rough handling of the battery will likely damage the fuses.

Where do get all the needed parts?

@stevenc22

2 жыл бұрын

I buy most stuff from AliExpress but it's on Amazon too.

Really enjoy your videos am trying to build a powerwall like yours here in Jamaica and would like to ask you some questions.... may I have an email address where I can reach you.

@stevenc22

3 жыл бұрын

Sure stevencarstens at gmail

Hi can you give me name of spot welder ?

@stevenc22

2 жыл бұрын

BIFRC. Check the description

Would you recommend that BMS brand?

@stevenc22

Жыл бұрын

I recommend Daly brand BMS.

@nevcreating

Жыл бұрын

Ok thanks, also what are the chances of a BMS failing?

@stevenc22

Жыл бұрын

@@nevcreating pretty small if you don't constantly push them to their max limit. I've never had one fail.

@nevcreating

Жыл бұрын

@@stevenc22 I am building a 10s4p with mj1 10a 3500mah cells what amp BMS do I need? 10a in parallel 40a? or just 10a

@stevenc22

Жыл бұрын

@@nevcreating yes your math is correct. Probably get a 50amp BMS just so that you aren't always pushing the BMS to the max.

How many ah is that?

@stevenc22

2 жыл бұрын

5x3.2 so around 16ah

@stevenc22

2 жыл бұрын

@@tobys593 you are right. I miscounted.

How much Was this project in total

@stevenc22

3 жыл бұрын

Under $100

@atifshahzad1858

3 жыл бұрын

Wtf

,sir posible to install two BMS in the 24v battery pack?

@stevenc22

Жыл бұрын

Yes but why? If one falls and gets stuck open then the second one won't be able to turn off the battery

@christopherbandola6629

Жыл бұрын

,because i need to increase the ampher sir..my battery pack is 10.4 ampher.i need about 15 ampher..how to install two BMS sir?thanks

@stevenc22

Жыл бұрын

@@christopherbandola6629 yes you can do it. You would just wire them in parallel. But honestly just buying 1 higher amp BMS is cheaper than 2 low amp BMS.

@christopherbandola6629

Жыл бұрын

,thanks sir.but my two BMS is only 15amper..its okey to install both for parallel connection to get a 15amper above my battery pack?thanks

@stevenc22

Жыл бұрын

Yes 2 x15 amp BMS in parallel can handle 30 amps

please link buy pcb spot this..thx

@stevenc22

3 жыл бұрын

www.ebay.com/itm/12V-18650-Battery-Energy-Spot-Welder-PCB-Circuit-Board-DIY-Auto-Spot-Welding-Pen-/264585775348?_trksid=p2349624.m46890.l49292

@Hiiisayy19

3 жыл бұрын

@@stevenc22 thx

U did well but u didn’t show us how u install bms wires in order to do this put bms cables on the right way show us specifically

@stevenc22

2 жыл бұрын

Thanks. I have done many videos on installing a BMS.

Good Job where did you buy 18650 cells

@stevenc22

3 жыл бұрын

Batteryhookup.com

@stevenc22

3 жыл бұрын

www.ebay.com/itm/200-Cells-LG-MH1-3200mAh-10A-Cells-in-5-Aluminum-Cased-Packs-/392887834629?_trksid=p2349624.m46890.l49292

@mainesmith2183

3 жыл бұрын

@@stevenc22 how long was run time are these good for gokarts

@stevenc22

3 жыл бұрын

@@mainesmith2183 high quality cells would work great for a go kart. Run time is over an hour at full load (500w)

Never use recycled cells. One doesn't know where they are coming from. There are plenty of affordable new cells!

He is Haydn others haph. He did not show nothing to publicSome people can got kiled

Bulangiu