All right, hey, it's time to make another battery. Okay, this right here is our most popular battery right now. It's the 4S L60 12vt battery, right? And people are using this in their cars to do audio to do, you know? Automotive Audio Because these batteries can push a lot of amps like 600 amps right? so and they can do it pretty consistently. Uh, they can do it for 10 seconds without going below the 12 volts.

and as a result of that, then you get this really good audio like you get the Deep Bas The Shattering Earth moving base right? So in the quest to get the best sound even better than what this battery can do, what people have asked us to do is to make a 5S version. So adding another cell and what that does is brings up the voltage about three volts up right? Because these are three volts each. And what that does is that when you load it up. uh, instead of this battery being at 12 volts, then you can get it to be somewhere around 14 and just those two volts right when you're loading it up, that makes a a big difference.

I Mean according to the audio people, I don't know I haven't tested this out I Don't know if a volt will make that much difference, but according to them that is the you know, that's that's like the gold right there, right? That's the that's to make it just to stay at four 14 volts while you're loading your battery with like, you know, 7,000 Watts Then then that's how you win competitions. I Don't know. That's how you get the best sound out of your system. And so as a result of that, we've uh, we started making these 5S batteries for these people who can handle the extra 3 volts and uh, you know they can use them for their higher performance uh systems, right? And so that's what we're going to do today.

Uh, We've made the single one here I Hav't made a video on that. That's probably going to be next, but today we're going to be talking about the people, the customers who want two of these batteries but together in one, right? So 10 cells not five cells, 10 cells and the reason you don't want that is for twice the power. This battery right here. with 10 cells you can achieve 1,200 uh amps.

Uh, while staying at well yeah, 144 or 14 or whatever it is that they they are trying to achieve right This, these many cells could do that right and also could do it for longer periods of time. Because you have more capacity in here, this would be uh 5S 10 Uh, what was this? 2p So two cells in parallel. so instead of 74 amp hours, this would be 148 amp hour, right? So in order to do that, we have to make this uh board here that will uh make all the connections for all the balancer and stuff and then we'll assemble it. So let's go to the drawing so let's go to the app and then we can dry it up.

Recording: Okay so here is the uh drawing that we have: Let's uh look at the thing here just like all the other ones. If you've seen any of these videos that I do you? you pretty much see that. You know we just draw these cells in here and at this point, well we pretty much have all of them drawn because you know we've done so many versions of these. but um, this one is no different right? So all we did was took the The8 cell 12vt one and now what we're doing is we're adding two cells in here and so then we just have to do this.
uh at the two cells and do the mechanical and then do the traces. So here's the top. um this is layer and of course now it's gonna be a little bit different. What that is gonna do is before on the 12 is uh or in the 12vt we have both terminals on this side.

the the positive is here and then the negative would be here. But now because we are adding another cell now we have to move the terminal up here. So now they're c corner right There On this corner is the negative. This corner is the positive and now we have to add another one of these things in here.

So here's the trace. Uh, there we go. This is the top level and all does is connects those two and then it connects those four and then like all the way across and then all obviously to because we're talking about such power levels right? Uh, such high power levels. Then we're going to have to reinforce this with aluminum bus bars on top and so that's what these yellow um outlines are.

These are for the aluminum bus bars and these are going to be. These are skinny so they have to be thick so they're a/ quarter inch uh 6 mm and then these are uh these are wider and the you you collect the current right in the middle Here these holes are here for some terminal blocks that we recommend. There's links to it right here in the text and so that therefore these ones can be a little bit thinner. they can be you know, 3 mm and then because then we also have to put nuts in here right? and so this is the board and all we have to do.

This is the top layer and then the bottom layer. We just you know mirrored it and so it's the same thing we put the voltage in here we pull these connectors. This one right here is going to be for your Um balancer and then this one over here is going to be for uh if you if you want to like check the battery while everything's connected, then you could do it through this connector here. Uh, if you want to parallel more, two or more of these batteries, then that's one way of doing it.

And then you, you could use one balancer, right? Like one big balancer. Maybe 10 amps. Probably 10 amps. That's probably about as much as these traces will handle.

So I wouldn't recommend doing that more. So if you're going to use a Higher One or you're going to use a lot of these batteries, yeah, you probably you know, could paare. Uh, B Uh, You can parallel about two or three of these batteries, but then if you're going more than that, then you would have to have their own separate balancers for each one, right? So there we go. Let's look at a 3D here.

Yeah, we go. This is what it's going to look like. It's got uh, the uh, is this correct 1, 2, 3, 4, 5, yes, 5S 2p. And there's the cathode.
Then there's the anode. And then here's the diagram for that connector. That way, you know what those connectors are, which, Where are they're connected right? Every one of those pins in here. and so you can make your your cables for that uh and then your balancer will go on this this side over here and it's got if you're ordering this to our sponsor.

this video is sponsored by PCB way. Um, then uh to order all these parts I Have you know I have uh links? Well I'm going to have links in the in the project page but just in case somehow you ended up with one of these boards. uh and you don't know where the page is at or whatever you know this is months later or you forgot how to get back, you can just come in here and all the links are right here. all the links to the aluminum plates, the bus bars, the 9 pin PCB uh, screw terminal connector the one that's going to be right here, the 16 s, the nuts, the nuts that you're going to need and the batco the balancer that we recommend you you.

all this stuff is going to be right here and so you can just complete this project. So after this all you have to do is uh I mean I designed this and I this is version two Yeah, version Two 1.2 So that means there's a couple iterations. We made a couple mistakes and even this one has one mistake. I'll show it to you later.

Oh does it? Oh no. I fixed this. Okay on the one that I have here is the first iteration and it has it has a mistake. I'll show it to you but I found a fix.

You know, um what you do is if you want to do this this is a open source project so you can download this file uh and and then order it yourself at PCB way or any other PCB manufactured in China right? And the way you do that, for example, be like so we're looking at the 148 16 volt 74 No this one right here. Boom. Okay so this is the project right here. Uh, you come to PCB way this the link is going to be in the description of this video and then what you do is you just add it to cart.

Now the only bad part about this is that when you're doing this it requires they require you to order a minimum of five boards. So when you click this to your cart it's going to say you know five and so if you don't need five then we're also going to have a link. Uh, and and so that we we have already printed these boards and we have them at Jack 35.com But then you know this have a markup. You know, I I buy them for $1 and sell it for two kind of thing.

This is how people make money, right? It's business and obviously if you're buying one it's It's going to be cheaper to just buy it from us at Jack 35. But if you're buying a couple of these or two or three. Um, and then you could just come in here and order it yourself and then you I don't. You don't pay me any money, you just pay the actual manufacturer.
these boards and then you get them for the cheapest, uh, price that you can get them right. and then you just go to the links. Uh, here are all the links by the way, if you know they're on the board too, but they're here also. I'm just trying to make this really easy for anyone to build this and then you click on these here and then you can buy all these components and uh, then populate it.

It's very easy. There's not much, it's just one connector and one cable and then everything else is just. you know, bolts and nuts and plates and stuff. this super easy like any.

this is beginner friendly. Anybody could build this battery and as long as you follow these instructions here, you should be fine. So now after you order that or download it and order it somewhere else, uh, then you get your board. So let's do that all right.

And here is our board. The mistake that I made in this first version was that our typical, um, our regular D plates which are go here are this right and I standardized them across all the batteries because it's just easier and better to order one part instead of ordering custom parts for every single one of these. But what I did is I moved this connector in here and in front of it because sometimes when we make boxes, well, it's just easier to have the connector farther from the from the edge here, right? And so in order to try to fix one problem, I made another problem. And so this plates are our regular plates.

Uh well, they're in the way the connector in the way of them. so you won't be able to use our regular plates with this one, right? But uh, the file that I'm uploading that you're going to purchase is not this. It's going to be the Version Two. Version 1.2 This is version 1.1 and to fix the you know, just the sample ones that I got here and to use them I Just order a custom plate and so that plate right here goes in here and then just the the little block here, the little terminal block.

it's just. uh, it's just going to be facing the opposite way. No, no big deal. this is how we're going to use this ones, right? But when you order yours, uh, the version that you can order 1.2 will work with our customer with our regular D plates, right? So you order those on our website.

It's fine. So now let's put this together. Here are 10 cells. They're already oriented the right way and you know by the way you the way you do that is just look at the markings here and you just match them.

Positives, Negatives right and then positive, negative, positive, negative. You just follow that and then once you're done there you just place it on top. Uh, well before that, you will have to solder the little connector here and then you can solder this one too. But in this case, we're not going to um, you could do it and then they just, uh, it just goes on top like that.
You see that it goes in there, sits all the way to the bottom. The next thing you're going to do is you're going to do the plates right. So these are the the aluminum bus bars that you require because the amount of current that we're pushing through this thing is so massive that you require big thick aluminum bus bars. So be very careful.

Don't short it. If you drop this in here just anywhere, it's going to be a massive short. So right where it goes, the markings are right there. Don't make a mistake because it's going to spark and it's going to be a bad day, right? I Would put two of these things in here so they move around again.

Don't put it in the wrong ones because it was going to be a spark, only put it where those markings are at. Put two of these so it doesn't move here, we go. Here's the third one There we go and then we'll get our special plates. Oh one more Yeah.

this one over here right? So you tighten all these bolts, all these nuts. Uh, you will have to use the skinny ones in here. and I think I have links to them. Uh here on these ones because these are thick bars because if you try to use the regular ones that there's just not going to be enough threads in there.

and then on the on these ones right here. you could use the regular ones and then you'll have to buy the the little blocks that go in here. There's links on the Uh description for these blocks. These blocks allow you to put big thick cables in here.

Uh 1 Uh I even put 20 in here. If it's high quality cable, you'll be able to fit up to 20 if it's cheap cable that has a lot of strands and big thick insulation and stuff. You know the cheaper then it gets bigger. Uh, even though the it can carry less current right? So then they mark it as A as a smaller gauge.

So yeah, these were marketed as zero gauge I think But I've been able to put 20 Cable in here right? The good quality high quality welding cable c in there. Um, and so yeah, this is the block. You You'll put it in there and then you can connect your battery. The other thing is now this becomes kind of a big battery and it's kind of unwieldy.

So I do recommend for you to use our uh, these are our compression plates and so you put them in here. you put the rods in here, you compress these. Now you have these flanges in here that you can use to, then, uh, attach this battery to where wherever you're going to attach it right? Um I don't know you could use a box. You could make a box.

A lot of people use wood in their vehicles because they're already doing wooden boxes for their their batteries and stuff. I mean for their for their speakers and so they encase this and Battery the batteries in in boxes of wooden boxes so that that I that's a good idea because then you know those are non metallic, they're they're non-conductive and so then because this is all exposed right? uh, a lot of people. Also what they do is they put like an acrylic thing in here on top of it just to to prevent all short kinds of shorts and stuff. Again, you're looking at a very, very powerful battery that is capable of 1,200 amps at a dead short.
It's probably more like 3,000 right? and so it will. It's going to melt anything that you throw in here. You throw a metallic thing in here like a wrench. Oh my.

God It's a bad day. It's going to start, you know, uh, glowing red hot right away and then uh, it's going to uh be a bad day for you. Then the last thing to do is just to put the little uh balancer I would do recommend for you. to use a balancer so that's just trouble-free You don't have to worry about it.

All these cells are new if you buy them from us, they're brand new and they're mostly you know, at the same voltage and so when you charge it for the first time, they're all going to be balanced at the bottom and then most of them are going to be balanced at the top because they're very high quality. But you do need a a balancer just so that you don't have to worry about it right. you don't Usually you don't have to balance this on the first try. you just, uh, charge them up and they're okay there.

There's a small variance at the very top, but no big deal and then you install one of these and then over the course of like the first week or a few 10 20 Cycles This will balance this battery at the very top or wherever it rests and so it usually it's going to rest at the top and so then you'll be fine. Uh, and it's easy to do the thing. There's a link for the little cable you connect the cable in. Here, you only need six pins because this is only you know, five batteries.

Uh, this has more pins. If you happen to get one of these connectors that has more pins, that's okay. just cut the pins that you don't need. the rest of them, you put them in here and then you you connect the the other one.

Here you can get a long one like this. you can get a short one. We have, uh, all kinds of versions of these uh cables? Uh, Jack 35.com right? So there you go. This is now your 148 amp 16 volt.

It's a 5S Lithium iron phosphate battery. It's very very very capable. You can get you know, 1,200 amps, whatever that is times 16. You do the math.

How much Watts is that it'll do? You know the loudest, baddest sound systems? Uh, that you can put in car audio right as one little battery like this. If you have like these monstrous things where you're like doing competition, a couple of these things now you're cooking right? So there you go. Uh, Open Source project. Thanks PCB way for sponsoring this video.

If You want to get these at the cheapest prices Again, you go to PCB Way. You follow the links and you order all the stuff and then you build it yourself. Otherwise, uh, some of these versions of these batteries. we're offering them already preassembled and stuff so you'll pay more but it's less work.
Uh I don't think I can do this one. I'm going to have to check. It might be over the the weight limit for uh, us shipping lithium batteries, but if not, then you'll see this at Jack 35.com Also, fully fully assembled so that you know you could just install it in your car and you have to worry about building it. So there you go.

Thank you for watching this video. Thank you for PCB Way for sponsoring another build another open- source project. We'll see you guys on the next one! Bye.

14 thoughts on “Need 20k watts? build this16v 148ah lifepo4 car audio battery”
  1. Avataaar/Circle Created with python_avatars @shawnd567 says:

    These would never fully charge from a car alternator. 3.5×5=17.5v. Alternator 14-14.5v. These would sit at 3v which is pretty much dead. Not going to be a lot of help. 4s is perfect for car applications.

  2. Avataaar/Circle Created with python_avatars @Chris-vx5kp says:

    I always wondered if these batteries could start a car or boat. Maybe some a cap setup to even out the recharging would make them viable. Last time I checked, marine lead-acid batteries were around $400 each, and most boats need 2.

  3. Avataaar/Circle Created with python_avatars @bibekmandal3718 says:

    I want to talk to you personally, how can I contact you?

  4. Avataaar/Circle Created with python_avatars @JonGotBass says:

    Batteries have nothing to do with sound….its holding stronger, higher voltage for you amplifier. The higher the voltage, the less resistance. Also when an amplifier draws from a battery you have voltage drop, and most amps are rated at 14.4v…..so if your dropping to 12v like your battery does than your 14.4v amplifier can't do its rated power. That's my competitors boost their charging voltage to the high 15s so when they drop, they drop to still where the amp is rated.

  5. Avataaar/Circle Created with python_avatars @lee28.78 says:

    Bars are way to small ,,to thin ,,not going to hold that amp, like we need it to .
    You must go much much thicker for car audio,
    Way to thin!!!!

  6. Avataaar/Circle Created with python_avatars @jackmule1572 says:

    Kindly put " PCBWAY" a little bit down in next(future video, if possible.

  7. Avataaar/Circle Created with python_avatars @patricktaylor760 says:

    Whats the cheapest way to build a 36V golf cart battery?

  8. Avataaar/Circle Created with python_avatars @scorpyo1987 says:

    You sell in Europe, Germany?
    I can order in Germany? Thanks

  9. Avataaar/Circle Created with python_avatars @KelvinNishikawa says:

    Maybe 3D print some covers for the busbars for convenience/safety?

  10. Avataaar/Circle Created with python_avatars @bastiaanwees7482 says:

    Yup @ ~14 to 16 volt amps put out a lot more power

  11. Avataaar/Circle Created with python_avatars @UPsideDOWNworld321 says:

    very cool

  12. Avataaar/Circle Created with python_avatars @georgesrisomsak9650 says:

    Holding voltage makes more power. A lot more. The difference is something you have to experience to know how much it effects things. Especially with high power audio, like 5-10k actual rms watts and up. As a "basshead" myself, I appreciate the videos. These cells look and perform great. Another option amongst the plethora of options.

  13. Avataaar/Circle Created with python_avatars @ABUNDANCEandBEYONDATHLETE says:

    What charger do you recommend? The one I just bought was 14.4v Aims charger. I also bought the 12v por fat2 assembled version from you. Once I figured out the BG-8S battery meter balancer to Life settings it charges very fast. Good stuff.

  14. Avataaar/Circle Created with python_avatars @ABUNDANCEandBEYONDATHLETE says:

    Get some kicker L7x subwoofers that boom so hard!

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