no it's too easy 😂

Yes, he is a maniac. Because it is so out of economical sense of hat even Chinese do not do such stupid things. I use a multimeter with 9V battery often, once a day, and it last a year. That kind of battery is cheap, around 2 GBP. So max you can save using this device is around 1 GBP per year. Totally insane waste of time.

@@teranova5566 He did not save 1 GBP per year, he got 5,6 million views per 10 months. How much GBPs is it?

​@@Random_4400 уухвхухуху0іжвлааш47е8е8ещщещкщкще8к8к8к9ккзкзкзкзкзкзкзкзкзкзузузуззузуузузузуззу9кхкк0

а подскажите как называются

Glad you liked it.

@@PenguinDIY me too i also liked that, 😁😁😁

Right. Amazing.

Yes

Very nice way to start a small house fire 🤙🤙

Я даже не представляю как трудно это все разместить и спаять😮

❎☑️💥

Do you not understand why they did point to point soldering and not just add the module in?

@@risingmermo No, because simply re-routing it to meet the board size requirements instead of p-2-p would work just nicely.

@@TheBypasser yh true but would be more expensive

@@risingmermo Like a couple of cents for a tiny piece of FR4 which for such a simple circuit you can etch yourself for free? And should we play some "big industry" here, the least expensive process is the one that takes the least manual operations, as it is both cheaper and less prone to human error, so fewer defective units per run.

ดีมาก

лишь показал что может, а так ее за копейки можно купить на алике

Yes that's right. It's hard to do. But for the viewer's satisfaction, it's worth the time and energy.

Uhhhh yeeeeeeeah like penguin man involved red headed Chucky dolls 😂😂😂😂😂😂

Браво👏👍👍

Не стоит этот девайс затраченного на него времени. Как идея для видео,да интересно.

@@kraj19721972 ну, кому как. У меня крона разряжается за 1 неделю использования

Что-то я не заметил контроллера разряда аккумулятора, а это значит, что проживут аккумы не долго...

@@WALL-I_DRUN Они уже на аккумуляторах есть, приглядись

Thanks

You are so good at this stuff

Keep up the work

You can buy them, just google for it. I just found a set of two for 22,54 Euros, can't say anything about the quality. I guess the reason that they are not very common is that they are much more expensive than a "normal" 9 V rechargable battery, which has ab bit less capacity and needs a charger, but is still much cheaper.

can you easily open them and easily replace the lithium packs? I think no@@olli1068

ممنون از لطفتون

Eu fiz um tutorial no instructables que ficou melhor que esse Convert a Power Bank Into a 9v Lithium Battery

thank you

I did it first cheaper and better instructables : Convert a Power Bank Into a 9v Lithium Battery

Check my instructables on that Convert a Power Bank Into a 9v Lithium Battery

Да на самом деле не особо сложно, куда только литий сегодня не пихают, больше не нужно особо. Вот села такая батарея в отсутствии зарядки или при отсутствии напряжения, надо значит запасную батарейку таскать, а при наличии запасной батареи не особо хочется заморачиваться таким ))), это где то добывать аккумуляторы, контроллер заряда, плату регулировки, и делать неразборную необслуживаемую литиевую батарею. Возможно проще купить никель металл гидридный аккумулятор. Два.

Apart from the fact that it is NOT what to do.

@jetdenis forget his tutorial, follow mine on instructables Convert a Power Bank Into a 9v Lithium Battery

I did this with my multimeter, couldn't charge and use it but that was ok. Check my instructable convert a Power Bank Into a 9v Lithium Battery

I also had a dpst (double pole single throw, pc on-off) switch with a capacitor in the middle, one side to the battery and one to the test points to measure battery voltage

Hello. Yes that's right. There is a sample of almost everything that is created in stores for sale. But creating something is fun.

Dear @Penguin DIY Thank you for your reply. I am relieved that your English was understood. It sure is exciting to mobilize all your knowledge to create, isn't it? Even if there are ready-made products for the same purpose. By the way, what is your country of residence? I would be happy to know.

Awesome! 👍 Good work!

Hay

А еще покрасить в синий цвет и выбросить. Новая крона дещевле

Чем такой город городить, лучше уж отказаться от преобразователя на MT3608, так-как холостой ход у нее может доходить от 5 до 15 мА. А все эти переключатели, не забыть выключить... Только если часто пользуешься. Но тогда лучше уж все в корпусе тестера реализовать, чем в крону пихать. В свое время, когда работал на предприятии, где изготавливались приборы измерения температуры, все тестеры переделали на литий. Наш инженер нашел какую-то микруху, у которой ток холостого хода был десятки мкА. На MT3608 заряд при небольших аккумах прямо на глазах таял, не успевали заряжать.

Ufif

Batteries have batteries inside of them and that aaa batteries and in that battery

Thanks

@@j5892000 explain the meaning of Your sentence. Could You?

He didn't have the protection circuit, and his board was too big, i did the instructables on how to do a better version for cheaper : Convert a Power Bank Into a 9v Lithium Battery

With the things like smoke detectors, you're far better off just getting the intended "10 year lifespan" lithium batteries that use the same battery chemistry as lithium coin cells, with 3 stacked in series (edit: 3 lithium cells stacked in series inside the standard 9v battery form factor) to get the required voltage. They're individually expensive yes, at maybe $10 for each one, but given that they are intended to last 10 full years, they end up costing a lot less than alkaline 9v batteries do.

Really just a fun video, like the previous comments the parasitic loses would discharge it quickly. Just buy a one...

@@gt6hudson Agreed, but even those ones you can buy have the same problem. And they don't have the little slide switch in them so you can actually fully turn them off either. I guess if you want the switch, it would be a lot easier and probably cheaper to start with one of those and mod in a slide switch than to have to build the whole battery from scratch. Additionally there's another issue with the build in this video. Where does the charging circuit's IC get any heatsinking from? That's what that massive pad on the bottom of the IC is for. If it was me, I'd try to take that charging IC, bend the pins upward so I can "dead-bug style" re-make the charging circuit like was done in this video, but before I re-made the circuit I'd solder it to the inside of the (metal) case of the 9v. I'd also try to use a dab of solder to secure the micro-USB connector to the side of the case as well, unless that needs to be electrically isolated for some reason (but I doubt that). Shouldn't be too hard for either thing to be done, assuming you have the right tools and a sufficiently high wattage soldering iron. I mean the inside of the case looks to be bright shiny nickel plated, which means it SHOULD accept solder rather well, assuming there's no additional coatings or oils on it (so clean it first). Also, I tend to use lead based solder, but only because I still have a lot of it. When that runs out I'll switch over to the lead-free stuff, but that probably won't happen for a real long time, back when I was doing soldering more frequently 15 years ago I bought a half pound spool of 0.032" 63/37 Sn/Pb (eutetic as far as I know) solder from Radio Shack and I've kinda barely touched it, since most of what I was doing was picking components out of electronics that either became nonfunctional or were obsolete. Salvaged plenty of power transistors and good mylar capacitors from CRT TV's and monitors, and I was safe about it by waiting a week before opening it, and being careful around the tube. Never got shocked or broke the glass of a single CRT when disassembling them.

Г

Thank you for your kindness.

You are right. The booster needs 3_5mA .

@@guangwang3049 as long as i can charge the battery all the way back up anytime i like and also switch it off when not in use thats all i need to know

I think the voltage booster is used for charging the battery from USB. Not for boosting the output of the battery.

Well the original 9v battery couldn't supply much power either

@@ElectricPylon no

🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤪🤪🤪🤪🤪

​@@shshinmirzashshin7468❤❤🎉😅😅

Also no protection against too deep discharging of the battery.

I made it and my multimeter works just fine. Why you say so?

@@Carolina-mw4po switched power supplies make "noisy* power. it's fine for most things, but multimeters (at least the fancier ones) can be pretty sensitive to this. you can add a smoothing capacitor in there to help reduce the noise, not sure what size it'd be for a 9v, though.

@@DFX2KX i understand it as the conversion is done using a high frequency. I'm only saying I had no issues with my multimeter. May be it has a filter after the vcc, who knows. Even measuring frequency with it, the values are correct. I was lucky I guess.

I am using that set up in my tester lcr-t4, and no problem at all.

Bro...there is tp4056 module

each battery has a protection board 0:56

That`s li-po with protect

Thanks

Yes, if you series the batteries, you can finally make it 8 volts, and with the voltage drop of the batteries, it will reach zero. It is not possible to charge an 8-volt battery with a 5-volt adapter.

ممنون

looks like the batteries themselves have protection circuits on them

some battery cahrge board come with over discharge protection.

@@a892728 yes but this bartery charger doesn't have discharge protection

@@manecior1 oh I got it. I also made my own 18650 charger with TP4056 chipset. I buy it with charge oc and discharge protection.only a little price higher.

@@manecior1 no need for one if the battery has one