All right, we are back with our test we're going to try to load this battery here, uh with 500 amps uh on a continuous load. This is going to be a 10 minute test maximum. This is a 64 amp hour battery at 500. Amps, it's not going to last very long.

It's going to run out of energy, really quick, so we're just going to let it run the whole way through and see with the thermal camera how hot it gets. That's right! We want to see if this melts starts. Uh melting up, then you know we found we want to find out where the failing point of this is. This is the sole purpose of this people.

Uh, don't comment: this is not a tutorial uh how to correctly wire a 500 amp load right. This is not that if you guys start commenting on the cables, i'm gon na make fun of you guys in the comments this this right here uh this whole load test right here. It's just one long uh high resistance wire we're just trying to make volts into heat the more heat we make, the more amps that we get in here, uh we're trying to semi control way right around 500. If we go to 600, i guess we went to 600 uh, but this is uh.

This won't measure more than 600. So that's our! We won't be able to know anyways, because this will not tell us right. It'll stop at 600.. So don't comment on how what i need bigger wires if we can create some heat in here and if we can create some heat in the wires here, then the better we're just trying to waste energy we're trying to load this.

This is the sole purpose of this test is just to check this and where his breaking point is and what is performance it's at about 500 amps. I want to know what i i can rate this printed circuit board uh bus bar right. I made this. I designed it now, i'm testing it.

I want to know where is it going to break? Can i put 500 right here right and and say, like you, can safely remove 500 amps uh or is it 400 amps? You know it's like? Does it get too hot? At that point i this is what this test is about, so even if we kill these inverters in here, while we're doing this, it doesn't matter. This is the sole purpose of these inverters. Here i have zero use for 12 volt inverters. Other than to run this test, so that's why these are here: we're going to run it.

Our loads are just going to be a bunch of heaters and an air conditioner and lights. Whatever i managed to throw in there to create this 600 or 500 to 600 amps, that's what i'm going to do so, i'm going to set now the thermal camera. Let's start the test, i'm turning loads on all right, so we started the test of the 157 amps right so now we're going to turn one of these ones on and okay. So, let's see here so that's 800! Oh! No! That's not gon na work! Let me switch these loads around hold on okay, 174 amps, 250 amps, 330 amps, okay, 400 amps.

Oh man, 400 amps. Oh, you start seeing those lines right there. Okay, what are the cells doing? Okay, 2.9 cells are at 2.9, 400. Amps.

That's not going to be enough. What else can i throw in here see here so 450? Okay, 500 amps 496 was close enough to 500 amps. Here's the camera 45 see that three minutes right. So those batteries are going to 2.8 2.7.

Oh man, those batteries are almost done well under a really heavy load. 491. 11 volt. So at one point hopefully the uh inverters are going to shut down because the voltage is going to go low right.

So look at that battery. That's that's the bottleneck right there. Oh those two cells there's something up with those two cells there. Maybe those are weak cells um.

What about the other side over there? Let's see yeah, you see, some cells are hotter than others they're, not all heating. Exactly the same. So, what's going on 500 amps 2.7 still the cells are holding okay, one of the inverters gave out. I just lessen the load a bit, so the voltage is getting low um.

The cables are not super hot. So now it's just this all right. There we go. The test is ongoing: how many minutes about six minutes, so it's still pulling 400 amps off of the battery and i lower that because the voltage is sagging uh and the inverters are turning off so at 400 amps uh, which is what about 2 1800 x, 2 Or 3200 maybe 3200 watts.

So now it's starting to lower again. One of these inverters is gon na quit on us, but if they're still going uh, the battery voltage is uh 10 amp, 10 volts and it jumped back up to 11.6 yeah. So now we're we're down to 200. yeah.

I say: that's it for that guy all right, so this battery did not last a full 10 minutes. It only lasted about seven minutes at 500, amps uh, 400 amps right uh, and maybe it's because we have some cells in here that are problematic, but as far as that, it didn't go anything above. It didn't even reach to 50.. As far as i could tell, let me flip it around all right, so conclusions of the tests, these temperatures never got too hot hot.

I mean you got to think about it. Uh this pcb material uh doesn't start breaking down to like 200 degrees, c uh. So this never got like even 250 right. As far as i could tell we'll see the as far as i could tell on the thing once i see the footage, so this thing could carry 500 amps the way it is with one ounce, copper, no problem.

If you put two ounce, copper, which is - doesn't cost that much more to do this, this bus parts can do a thousand amps, no problem, no problem. If the cells could do it right and transients like maybe for audio right, the the the bus part will do it now, there's going to be a lot of people, especially in the audio world, the people in the audio world love these giant core. You know three quarter inch, aluminum, boss, bars and uh they don't they don't need that. That's like way overkill, like literally way overkill right.

I don't know they're running five thousand ten thousand amps through them, maybe right but they're. Never it's not a continuous load when it comes to audio and so definitely yeah we're gon na i'm gon na put text on these that, if you order them with one on copper, then they're 500 amp uh bus bars. If they're, two ounce copper they're like a thousand amps right and i'm comfortable rating those that way, because i just did the test - i just loaded it with 500 amps for a cont in a continuous way until the batteries run out right and so the the problem. Like on this size, right, like you'll, never be able to run.

You know 500 amps for more than 10 minutes, because this battery absolutely will not put out that much it'll run out of energy right. This is only a 64 amp hour pack, because that's what those cells can hold, and that is the size you can't put more of those cells so on this application right. Bus bars for this type of battery for 32 headway cells. One ounce, copper, it'll, do 500 amps, no problem right.

Two ounce, copper, a thousand amps. You can load this battery with thousand amps now the cells might have trouble, giving it to you right for more than five minutes right, and so that's why i'm designing this? This way and that's why i'm designing uh using pcb board, because i know i tested now that it can hold the 500 amps now you know. Of course, a lot of people are going to disagree with me and they're going to post it in the comments and they're going to call me an idiot uh. That's okay! You know people who want to learn people who can look at this data and use it.

Then that's good for them, people who are already set in their ways. Well, we can't help those people right. Those people are, they believe, a thing more so than the data that they will see here. The tests that i'm that i just did here, um that's unfortunate, but there's a lot of those people out there and a lot of those people have key are being are leading some of these circles, especially in the in the uh audio world.

Right and the reason i'm saying that is because i used to make these plates out of eighth inch, aluminum uh, and so yes, aluminum is a little bit less conductive right. They have a little bit more higher resistance, but it's it's way. Thicker. I mean you're logging about like this.

This is one ounce, copper and that is 1 8 inch aluminum. So there's basically saying that you can't use quarter inch aluminum. Somebody else copying my design and they're pushing that, and so i know what they're going to say about this. This is going to start showing up in their circles and they're, going to put it down they're going to say that this is terrible, that this doesn't work.

You can use it for high amperage, uh applications, high power applications and that's okay, they're, not gon na, say that uh. But we know that it can handle 500 amps on a continuous load for about 10 minutes, because that's about how much this uh battery can put out right. 500 amps above 10 minutes uh a thousand amps. This battery's, probably gon na, be able to do for like three minutes and then, after that the battery is gon na die right.

So there we go this battery, and this pcb uh base bus bar is ready to go. I will make the changes uh that i was talking about to just to make it just better um and put it up. It's gon na be open source. You can go to pcbway.com and the uh i'll, put a link in the description of this video and then you'll be able to download these files and print or order the the bus bars directly from that store right, and so this is open source you'll be able To get it for not a lot of money, you know you can buy very expensive over engineer.

Bus bars all day go for it if you're happy doing that. If it makes you happy doing that, go for it, but if you just want to get something uh that works and it you don't have to spend quite a bit of a lot of money, then you can go this route here right and if this is tested, I'm sure sure someone's tested all the other bus bars the aluminum ones, but i i don't have access to that test because i'm not in that, but this is tested, and i can point you where we tested it and it works right. So there you go. Thank you for watching this video we'll see you guys in the next one.

Bye do do so. Foreign.