 Okey, projek ini sebenarnya bermula dari perniagaan keluarga saya. Apa yang berlaku adalah, kita sepatutnya mempunyai kontrak dengan keadaan... Saya tidak boleh mengatakan perkara itu, ia adalah perkara keadaan keadaan keadaan keadaan. Di mana mereka menghubungi orang yang penting dari satu tempat dan lain tempat, dan mereka perlu melakukan rekaman sebenar sejauh sejauh sejauh sejauh sejauh sejauh sejauh sejauh sejauh. Dan sejauh sejauh sejauh sejauh sejauh sejauh sejauh sejauh sejauh sejauh sejauh sejauh sejauh. Mereka menggunakan 24v. Dan saya mengingat apa yang berlaku pada masa lalu, apabila mereka cuba melakukannya, mereka menggunakan bateri. Jadi apabila mereka mahu menggunakan bateri, mereka tidak dapat. Jadi, kemudian apa yang mereka lakukan adalah, mereka menghubungi bateri 12v. Apabila mereka mendapatkan dua sikap, perkara itu akan menggunakan bateri. Untuk mengubah, kerana anda mempunyai keadaan keadaan keadaan, tidak ada masalah. Mereka tidak mahu menggunakan bateri keadaan keadaan keadaan. Mereka mempunyai kontrak dengan kami untuk menggunakan bateri 12v untuk dua atau tiga tahun. Dan dengan potensi yang menghubungi kontrak. Tetapi sejauh lalu, dua tahun yang lalu, mereka mengubah, kami menggunakan bateri yang tidak tersebut. Apa yang berlaku adalah, bateri 24v adalah 12v kerana sistem keadaan keadaan keadaan keadaan keadaan keadaan. Ada lelaki yang menggunakan sikap, mereka memulai dari alternatif, kemudian memulai 12v dengan sikap keadaan keadaan keadaan keadaan keadaan keadaan. Berta-berta kaki. Ada masalah dengan sikap ini? Masalahnya, bateri kaki kaki kaki, esok-esok, anda memulai kaki kaki dan kaki kaki. Bila ia selalu dikejar, anda dapat kaki kaki kaki di kedua kaki. Curut pendant. Hotelarnya voudahkan ,шая geraz duit, menganggung tiga leads, misหdan kopi baik, and the negative plate is your lead. The positive plate is your lead�iquelunk. Ibu unwanted, I can go through in the league ofloaten. But let's go through this quickly. Then, there is something called half self potential. What is the half self potential, you are using the hydrogen ion dan menurut sisi tinggi 0.35. Dalam sisi positif, sekeliling dan oksida, sejumlah potensi hidup yang telah menjadi 1.65. Dan anda menurut sisi 2. Siti dengan 2. Setua perkara yang teruk, tentang baterai S. Pertama, ia tidak suka dikejutkan. Ia ingin dikejutkan sepanjang masa. Apa yang berlaku adalah apabila anda dikejutkan, anda akan menjadi pilihan seluruh. Pilihan seluruh adalah menang. Apabila anda memperkaitkan kira, ia menjadi krisit. Apabila ia memperkaitkan kira, anda tidak dapat membuat kira yang tidak terlalu banyak. Jadi, sebab kira, anda memperkaitkan kira yang terlalu banyak, kira yang terlalu banyak, jika anda memperkait kira, anda akan mencari kapasitas. Jika anda memperkaitkan kira sepanjang masa, ia adalah apa yang mereka buat dengan kira, kira-kira, mereka sebenarnya memperkait kira sepanjang masa, mereka memperkait kira sepanjang masa untuk memperkait kira. Apabila anda memperkait kira, anda tidak mahu membawa kira sepanjang masa. Kerana jika anda membawa kira sepanjang masa, sesetengah kira yang terlalu banyak akan menjadi tidak memperkait. Okey, kira-kira kira yang terlalu banyak yang anda memperkait. Saya tidak yakin, sebabnya banyak orang yang mudah tidak tahu. Anda perlu terus memperkait kira. Kenapa kira kira kira? Kerana apabila anda memperkait atau memperkait, kira-kira, kekuatan menerima. Maksudnya, anda menyeramkan air. Apabila anda memperkait kira, atau memperkait kira sepanjang masa, ia menjadi terlalu berkoncentrati, anda akan memperkait kira. Jadi anda perlu memperkait kira dengan air. Dan jika anda memperkait kira, apabila anda memperkait kira, anda akan memperkait kira. Jadi apa yang berlaku dengan kira-kira? Anda tidak memperkait kira. Jadi anda mempunyai votasi dan keadaan setiap masa. Mereka akan menerima sekitar 4-5 jam. Jadi anda akan mempunyai keadaan yang tinggi untuk anda menghidupkan baterai. Apabila anda sudah selesa, mari kita katakan bahawa anda sudah selesa, anda tidak dapat makan lagi. Anda akan mencubanya beberapa makanan. Apa yang akan berlaku? Ada sesuatu negatif yang berlaku. Mungkin anda akan keluar dari atas atau di bawah. Sama dengan baterai yang tidak selesa, anda tidak dapat menghidupkan baterai lagi. Tetapi anda tetap di dalam untuk menghidupkan sesuatu. Perlukan keadaan berlaku akan menjadi keadaan. Jadi anda akan menghidupkan keadaan dan hidrogan dari baterai. Bukan sejauhnya anda akan menghidupkan keadaan keadaan. Selain itu anda akan menghidupkan banyak keadaan. Keadaan keadaan dan hidrogan, keadaan keadaan. Jadi ia adalah sebuah formula yang terbaik untuk... ...awak tahu apa. Sebenarnya apa yang mereka lakukannya, walaupun bahawa baterai terbaik untuk menghidupkan, anda tetap menghidupkan. Jadi hidup baterai telah ditutupkan. Jadi perkara yang terbaik adalah... ...saya perlu menghidupkan keadaan keadaan keadaan. Bukan hanya sebuah keadaan. Sebenarnya saya menghidupkan keadaan keadaan di Singapura. Saya menghidupkan setiap kedai di Singapura. Bukan setiap kedai mempunyai kombinasi ini. Mereka mempunyai 12 hingga 12. 24 hingga 24. Jangan mempunyai 12 hingga 24 hingga 24 hingga 12. Jadi tanpa kombinasi ini yang benar, anda akan mempunyai masalah... ...sebab baterai anda akan berbentuk atau melengkapi. Di mana-mana, tidak baik untuk baterainya. Jadi tak ada pilihan saya untuk menghidupkan. Dan cuba mencuba perangai baterai yang benar. Bukan sebab ada 24 hingga 12 hingga 3 berbentuk. Dan sekali lagi, saya tak dapat mencuba apa-apa lagi. Sebelum menghidupkan, saya menghidupkan sesuatu yang menarik. Yang ini adalah konverter solar. Konverter solar, basically, you cannot predict the voltage. So because you cannot predict the voltage, the solar converters are very lenient. This one actually charges, I think, from 12 to 50 volts. So you have a very wide range where it can charge. So again, you have to prove of concept. That's why I make this thing to do a proof of concept to make sure that it works. And after confirming it works, I have not spoken to the people understanding how they did the charging. So I thought it was actually battery to battery charging, which is quite simple. But it turns out it's actually not battery to battery charging. They are using alternator, transformer, rectifying, and then charging. So you have a problem of pulsating is DC. And I'm not too sure what rectifier they are using. They may be using the wrong rectifiers. Or I'm also ignoring that part. I can even literally ignore the transformer. So I can literally take from the alternator because assuming it's a 34 volt alternator, I can have up to about 30 volts is ratified DC coming in. This one can take up to 50 volts, so it's safe. So literally I can take out whatever they have done, connect straight to the alternator. I'm putting in my own rectifier. I'm putting in my own capacitor to make sure I get the DC coming in. Theoretically, I don't have to have a flat DC, but I would still prefer a flat DC so that what comes out is more predictable. And I tested it. The first thing I get is so I tested it, I put in the power in. It did not work. I was very angry. I was about to return. And while that happened, I did not have an asymmetry to test. I just want to ensure this is working whether to return the thing or not. So I said to be fair to them, let's put a battery in there, but I didn't have a battery at the time, so I had to wait the next day when I went to the office, put on a battery. No, it works. The solar controller would not work without a battery. So if you have no output, you put an input, it would not work. You need a battery there to turn on the circuit. The other odd thing about China power circuits, normally we will switch on the positive side. So when you are trying to switch anything, usually you switch on the positive side and your negative side will be ground reference. You look at most of China chargers, China power products. They are using positive reference, ground switching. Same thing we did. Low and behold, Murphy's law works. During the actual day we were demonstrating the person who wants to use, he was quite impressed with the setup but it has not been demo yet. So on the day I tried to demo to him, the charging part works perfectly. The power output side, which is this portion here, came on flash. I put a light bulb there to simulate the load. If flash for short, about maybe 2 seconds went off. And when I take out the load, I put it again, it will not flash again. To let it flash again, I have to disconnect all the circuit, connect it back again, pull a load, flash again for 2 seconds. And I suspected, it's negative switching. So I left the positive there, put a negative to the battery, works perfectly. But it's actually cheating because I'm actually now tapping straight from the battery. That sort of tell me is quite likely to be dry joined. So on the spot, I didn't want to do that. Anyway, I just opened up the thing, negative side, where the switching is done. The lead goes, it's a double-sided board. On the board, where the lead came out, it's well-soldered. On the other side, where the component is, you can see that the solder didn't flow through. Most times, the double-sided board, you have actually what they call plate through. This one, apparently the plate through is not very good. So you do not have a connection from the back plane to the front plane. So just as again, test of concept, solder both sides, now it works perfectly. In fact, sorry, I didn't bring my laptop. I can put my dapting there and put the battery. So anyway, now it works perfectly. The one last thing, the lead acid battery, I say it wants to be fully charged all the time. How does it do it? First thing is, lead acid battery is generally what they call constant voltage charging. You put in the constant voltage of between 13 to 14 volts to charge the thing. When you're quite near the thing, you actually lower your current. You don't lower the voltage you can do constant current charging. And when you're very near the peak, if you want to optimally charge your battery, keep your charging current at a very low level of about 100mA. Why you want to do that? Because lead acid battery has a notorious habit of self-decharge. And the self-decharge occurs because there are impurities in the battery. And impurities actually act as mini-cells in the battery that consumes the energy. So lead acid battery, generally if you're not using for long time, put it on trigger charge. So all that is done by this little guy here. And this is more or less a setup that I was thinking of whether to bring this or not. So that's a circuit. And this is a block diagram. And this is a... Okay, one funny thing which some... Again, I've not proven this one yet. One of the key battery charging equipment maker suggests a negative pulse every now and then when you're charging. The first time I read that one, I was quite puzzled. Why would you want to purposely put a short negative pulse into the charging circuit? Expansion given is when you're charging the gases build up. When the gases build up, basically it blocks your charging current. And instead of charging, you're actually creating heat. The negative pulse has apparently pushes away the bubbles and recombine the bubbles. So you don't lose as much water. Okay, I think that's about this. Any questions? So demo, I have to bring that over. But I need a second source to charge. I can do the power up of this part but I need a second source. Okay, there's a second part of a demo here. And this one is actually very cool. But this one, I can't bring that because I bring that it's going to create too much noise.