All right, look at my desk here see all those batteries some of those i've tested, but some of them i haven't. I still have to test like these ones right here. I have to see what the hell those are and if i want to buy them, uh these ones are actually already on the website. These ones are.

I don't have them on the website, but these seem to be pretty cool either 13s or 14s uh actually might be 15s so, and they have those little connector here. So this might be a really cool stuff, but anyways. Today i want to talk to you about one of the coolest batteries. These most of these are 36 volts 10s, and i today i'm going to show you my favorite one and i'm going to show you why that is one of my favorites.

Let's go to my table over here, okay, so here we go this one. We have we - actually, i don't even know where these are from, but we have decided that uh we're gon na call this an r5, because we've been calling all the our e-bike batteries that we don't know where they're from uh are on our series right and this One actually has an r, so i don't know that was a coincidence or it has to be because then we did right so anyways. These are my favorite um 36 volt e-bike slash scooter batteries, these might come from a scooter or it might come from an e-bike. I mean the differences between these are very small right and so here's the thing they come most of them come like this.

Without the connector. For some reason, someone cut the connectors, there's nothing we can do about it. All we can do is offer them the way they are now the first things you would have to do. Obviously to use them, then you have to do uh put connectors.

I just added these connectors soldered them in there right and then we're gon na try to wake them up, but before we do that, let's talk about what's inside of these, when you open them up uh, can you open them up right? A lot of people are going to ask that you can. It is not easy. These are all glued they're put together very, very well they're glued in here. So you have to use some kind of vice.

You have to crack it all the way around and then eventually you will be able to crack it open like this right um. You have to take off all the screws. Obviously, before you do that right and then there are two more or four more screws in here to hold it in there, so there are a couple of variations when it comes to the bms, see this one. I just took it off already and there we go.

This is the batteries that are, you can find inside there's a very popular ncr18650bds. These are very, very high quality, uh, 18650s 32 100 milliamp hours right, there's panasonic's, essentially the same or very similar to what tesla uses in their vehicles. So this is a little chunk of like a little tesla battery in here i mean it's, you know not really, but it is uh similar cells by the same manufacturer kind of thing. So there are a couple of uh variants when it comes to the internal bms.

You see some of them look like that. Some of them look like this, but i think at the end of the day, it doesn't really matter what the bms looks like. I think you know they were just probably using like kind of like off the shelf one at the beginning and then what they ended up using, and then it just integrated in here, although this probably works better, because it's got a heat sink in here. Where this one doesn't uh these ones, this one only has four of those where this one has four one two three and this one might have well, no actually they're about the same.

I think this one has three of those mosfets, and this one has four. Maybe this one needs four, because it doesn't have the extra heat sink in here so in order to and so less power through these uh, so so they don't have to dissipate as much heat. Okay. So here we go look.

We have some writing in here. Our put 10 s, 15 amp v version 1.2. This is version 1.1. There we go see and it's the same thing: 15 uh amp right.

So i guess these are rated at 15: amp output, uh they're, 12 amp power, uh, 36 volt right battery packs um. So, let's see if we can wake one of these up and see what it would take okay before we do that uh. This is the reason why this is my favorite look. This is silver packs that we sold about 10 000 of these, and these are great.

These ones right here, are exactly the same cells right and are almost identical on the inside. The only difference is that the bms is different right, and so this bms on the on the silver packs required that specialized digital key to turn on the bms. Remember, like we have to do the little dongle here this thing that we put it in there and then they had the uh, the connectors that were, you, know specialized and we had to buy them and they turned out to be a big mess or whatever. But a bunch of you guys are using these packs this way.

So this thing right here, it's an arduino - would send that specialized key signal to wake the bms up and to actually let it run now, this one's right here, these black packs, don't require that this is just a straight up. Bms, all it needs to know is have voltage and all the cells the temperature has to be within range and then the bms should should come on, and so you don't require any specialized signal from another device to wake these up. So that's why these are my favorite of these packs high quality, but without all the nonsense of having to send that digital key. So now, let's wake this one up.

First, let's test it uh. Let's put our thing here on dc: we'll put it in the input here, six volts, so that means the bms is off. Let's do the smaller connector here and see if it recognizes it: okay, 5.6, volts right so very low. That means both of those circuits are off, so we're gon na attempt to charge using our little 42 or 36 volt uh chargers that we have on our website.

We have thousands of these things, so um they're, great they're built for 10s packs, and so that's what we're gon na do. So, the here's, how i recommend doing it and we're gon na try it right uh. Actually, let's try this way, so the proper way to charge or the way these batteries were designed was to charge on this little uh port right, uh, the the the connector with those little cables, but what happens is with all the other packs that we've been doing Is that sometimes, if the cells or the bms is off it, doesn't it doesn't turn on it doesn't wake it up when you charge it, you first have to charge it through the main connector for a little bit bring the voltage up of the cells. I i guess anywhere above 30 volts and then this port then starts working after that.

Now. How does that make any sense? I don't know, but that's just the way that these packs have behave, and so let's try this one. I haven't actually played this before uh like this okay, so here we go okay, see! So that's exactly what's happening. You see that that green light means that it's not seeing a load here.

So this this charger is not doing anything. You can leave it there for a long time and nothing's going to happen, because this is completely off, and so it's this is no difference between being connected to to being connected. So this is not connected to anything. Basically, the mosfets inside are turned off, so i'm gon na disconnect the charger and the reason i do that is so that it doesn't have full voltage in here when you connect this, because sometimes it sparks and then the more you spark in here it starts ruining Your connectors right, so what you do is you connect it first and then you connect the charger there.

We go okay, so there we go yeah. So what happens is that the load in here is greater than 1.7 amps, and so what this charger is doing is that it detects a larger load right or more resistance, uh that exceeds the 1.7 amps that this thing can do, and so what it's doing is It turns on and then it turns back off right away, but every time it turns on it sends a just a tiny bit of of power into the the batteries, and so the batteries will start charging a little bit. And then the voltage goes up a little bit and then it goes up a little bit, and sometimes this will take. You know five minutes 10 minutes.

Sometimes it will take a couple hours depending how bad these packs are, are low right, and so eventually this will turn solid red, and when that happens, then it starts charging and um after it goes above, like 30 volts per pack right, so 3 volts per cell. Then you should be able to charge it through here and then through here. All the benefits of, like all the features of the bms, should work like the balancing and the temperature and stuff right. We don't know what features work.

Well, this, i actually don't know if it balances, yet i have to do some tests to see, but i just haven't had the time to do it, but i recommend charging through the port here uh once you are you're able to wake this up right. So, let's wait and see when it finally stays on and then we can start charging okay. So i thought about this a little bit more and i realized that this is probably a better way to show you what is going to happen. I have this uh variable power supply right and it's connected to the battery right now, but it's off so i'm going to start pushing just a little bit of power right.

I don't know like a hundred uh milliamps there we go 140 milliamps right and the voltage is starting to rise up. It's 19 volts right now, 20 volts right. So that's that's what the little charger is going to do. Every time it blinks red! It's going to blink it's going to push a little bit of voltage in there and it's going to blink again and push a little voltage.

This voltage just keeps rising and slowly keeps rising now to 21 right and it doesn't need a ton of uh power to do this. Uh. In fact, the slower you do this, the the better it is for the cells right uh, because they're they're low. So all right, so after a few minutes uh now this should be sitting around 30.

Volts should be able to plug in our charger to the smaller charging port and then turn it on there. There we go now. The light is red. Now you leave it there in about two hours well, actually, no more than that.

Oh man, it's gon na take a long time from fully fully discharged like this. I think it's gon na take someone like 10 hours to charge using this charger. It's just a a big battery and kind of a small charger right, two amps and it's got 12 amp hours, uh or 13 amp hours, something like that close to 13 amp hours of the battery. So it's gon na take that long to charge right.

But you just leave it there come back later should be charged. Then you can use your battery all right. So i like these packs, so much that i've decided to use those to electrify some of my vehicles somewhere like buses. Now i know you're saying why.

Why are you gon na use those scooter batteries or e-bike batteries? Why don't you just use a tesla battery like everyone else right? Well, as it turns out, tesla batteries are kind of scarce now and they're going up in price. Currently, you can expect to pay about. Fifteen hundred dollars, uh per module right five amp hour, module five kilowatt hour module, so that comes out to be over 300 dollars a kilowatt hour right this one's right here, i'm selling them on the website for a 100 a kilowatt hour, and i bought them much Cheaper than that, and so i am going to pay way less right and they're about the same cells they're just as dense as a tesla battery pack right, but at one third, the cost, and so that is the reason why they're gon na end up going in This bus they're going to go in this bus, then they're going to go in this bus another one of the benefits of it. Is that because they're so small, then you can put them in more places right.

You can build boxes that are of you, know, weird shapes and stuff, so you can put them in there there's also two different sizes of these, and so you can combine them because they're at the end of the day, they're the same uh. You know 30 40 cell pack and 10s and stuff, and i actually been doing some tests. Let me show you in the car that i currently drive daily. I've been testing these packs for a few months now, all right, so let me show you this right.

Here is my daily driver. This is the bus that i drive. It's got tesla batteries in the floor and where the gas tank used to go right below this area here right, but this pack right here these are actually those - and this are not just here. You know just to look pretty um.

These are actually part of the battery they're connected to the battery and when i charge this vehicle, it charges these batteries and when i use this vehicle, it discharges these batteries. This right here uh one two, three, four, five. 15 of these packs right at 400, almost 501 hours each one. So that's just shy of seven kilowatt hours.

Uh! That's about 21 miles of range that i get uh out of these. This tiny pack right here, right and they've, been here for several months now. I've been using them, i've been testing them and it seems like they're gon na work on my other uh projects that i'm gon na be using. I'm gon na be using two motors right and they're.

They have the higher voltage uh inverters. So i will need to put four of these in series right now. These are connected in series, so 42 volts 42 volts, 22 volts. I fully charge is about 126, so it's a 111 nominal because there's 30 cells - if i add another one, it's going to be 40 cells, so 40s uh pack, that's what i'm gon na end up putting in the other uh next generation of these vehicles with dual Motors and so they are going to have to i'm going to have to build quite a sizeable battery pack, somewhere around 50 to 60 kilowatt hours right so at 2c there will be no problem, it'll be able to push.

You know about a hundred kilowatts uh that these motors can can uh ask for right, and so this pack is gon na be great for that it's gon na be long-lasting. It's gon na give about probably close to 200 miles on a bus like this right and it's gon na cost me about one-third. What it would cost me currently to use a tesla battery right. So that's the reason why i'm so excited about these ones and i'm using those - and i put some of them up right now on the website, so you can buy these and use them for all your diy projects, either storage, although you know these are great for This sort of stuff right, so i would think that people, you know we use them for that.

Instead of storage, there's a bunch of other batteries that you can use for storage. So there you go. If you're interested in these uh just go to jack35.com, you should be able to find them there, along with all our other e-bikes and current battery selections that we have there. I want to thank you for supporting uh, my endeavors and all this battery stuff that i do.

I want to thank you for watching these videos. We'll see you guys in the next one: okay, bye.