How to Make USB Rechargeable 9V Li-Ion Battery

（Materials required）配件表
9V Battery 电池
Adjustable Step Up Charging Integrated Module 可调升压充电一体模块 bit.ly/2GR3PEs
102535Lithium Ion Battery 软包锂电池bit.ly/2ZIT7qT
SS12d00G4 Toggle Switch 拨杆开关 bit.ly/2DDr7f0
optical fiber 光纤
PCB Prototype for $2(Any color): jlcpcb.com/
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[@kaig8980]

I didn’t think this would be a good video, but the optical fibre trick definitely was a stroke of genius. Great video.

[@azimshokri7876]

👌🌹افرین چه طرح خوبی من از این ماژول ها دارم اما بفکرم نرسیده بود این کار رو انجام بدم و باطری ۹ ولت شارژی داشته باشم ممنون بابت کلیپ اموزنه و خوبتون .خیلی ها فقط ویدیو های کلک در یوتوب میزارن اما شما یه روش عالی رو به اشتراک گذاشتی .

[@trashdiyer5296]

i also did this same project but i set mine to 9.6v to maintain the voltage hold the multimeter when the lipo goes low voltage. by the way love your technique with the optical fiber, now i would try that.

[@adamsucksatyt]

9.5V is brand new 9V battery

[@naturallydope247]

This is dope. I think id just but a rechargeable battery at this point though for the amount of work it takes lol

[@orhanyor]

thanks for the idea, i did this without the fiber optic and the switch! i would like to note that its very important for the 9V battery to have a plastic casing. mine had an aluminium casing and it was very difficult to work with. so yea for the people who are looking to do the same mod just get a battery with plastic casing..

[@superstudycoaching]

Full knowledge of battery kzbin.info/www/bejne/pKO4mIRjobSbgq8

[@shreyasr5535]

Are you from india

[@reme98johar82]

١🎯🏌️‍♂️🏌️‍♂️🏓⛳

[@ytfanlingeric]

Without the switch does it mean that the battery is always on? Is self-drain noticeable?

[@orhanyor]

@@ytfanlingeric yup it is actually. I would suggest you add that switch IF you are going to use the battery occasionally. If its going to be used constantly then prob switch wouldnt matter that much

[@richmanualcreativity322]

必须给你点赞，用光纤把指示灯引出来，太聪明了。

[@KJDOT]

谢谢

[@michaeldolaberidze670]

Спасибо большое за информацию 💥🌟💥🌟 Thanks for video 💥🌟💥🌟

[@mikhailmakarov5784]

Bro, what kind of glue used for fiber optic over led indicators?

[@reuse1987]

what kind of camera do you use for your vlog?

[@roland2527]

such batteries should be created in series is a really good idea

[@manjushapatil7071]

I seen this times ,still i don't get bored!... Great execution ...I loved the optical fibre part !!!

[@syedsohaibbaachabaacha5456]

Good luck

[@opkashav6740]

Bahut Achcha Banaya

[@iffisheikh2418]

@@opkashav6740 ggkhllb sixes

[@charu339]

Jjvjjk

[@electroumit]

Good, thank you. You can use only two li-ion battery. You must be use white tape for fiber optic.

[@lcmleaked5148]

Pls note that 9v step up converter doesn't support over discharge protection. You'll destroy you're lipo if you're not checking voltage regularly.

[@Makoto778]

2:25 his lipo seems to have a built in battery protection board....

[@lcmleaked5148]

@@Makoto778 almost every lithium batteries has it, but it still damages battery to overdischarge them.

[@lcmleaked5148]

I have been making similar battery recently with protection board and voltage meter with 3d printed case. And I know that battery won't last long since step up consumes energy even without load. That's probably why he installed switch to it. But for most 9v battery applications it's pretty useless since it drains itself empty in few months.

[@hamburgelbstrand5748]

Using a step-up converter has some disadvantages (with low currents, self discharging, capacity at all). Most of the 9V Li-Ion blocks, which you can buy, are using 2s, also not ideal (voltage was to low), but slightly better for low current and log term usage (which is the typical usage for remote control or measurement equipment).

[@KJDOT]

Thank you

[@skgamerzkhanziya9741]

Optical fiber trick was pretty ingenious 👍👍👍

[@GridDweller77]

ok, it's rechargeable, but how long does the battery last? I don't think that Li-po is gonna have the milliamp hour capacity to power anything for long.

[@pixelatedbeing2797]

it'd probably last longer than a regular 9 volt battery. those things last like no time at all under even a small load.

[@erny1601]

Great idea, but I think the "Battery" wont last very long if the device isn´t in use for a longer time, because the intecrated circuitboard will use little energy even when not in use, and taking it out everytime to switch it off isn´t very usefull. A better way will be using the good old Ni-MH rechargeable batteries.

[@何馬士]

you are right

[@pathusworldbyfathima2912]

Battery my 9v a

[@blhbsit1251]

Will the charger stop charging and shut down when the 9V battery is charged? Or, will it keep charging and burn up the battery.

[@middleeasternvibes7981]

Its doesnt matter the litium battery itself doesnt effect when its still charging.. No need for it to stop..

[@moumonmusic]

I always knew this guy was a genius, I wish you have a great future 😊

[@KJDOT]

Thank you

[@moumonmusic]

@@KJDOT you're most welcome ☺️

[@rescerolse5558]

the module have low voltage protection ??

[@Saartekk]

Dmn! Very clever idea! Also with the optical fiber for the LED... Thumbs up!!!

[@KJDOT]

Thank you

[@ВладимирДергапутский-ь5й]

Я такую батарейку для мультиметру сделал сам по схеме из журнала Радио за 2017 год номер 1.

[@Sharptooth100]

Excellent one to do. Show this idea to Duracell is a must. Way to go!

[@sheikhdanixh3403]

Very good project i make a 9v power bank for internet router with this trick.... Thank you

[@giuliatolli2428]

be careful the circuit used has the defect that I described in my answer: it has no protection against over discharge. So the battery will be damaged quickly also thanks to the step-up circuit that will not show the battery drop outside. A real shame and a serious distraction from those who made the article

[@Inventor101]

Fantastic video, I also made one

[@KJDOT]

Great

[@francescacosentino6975]

929/5000 the video is very well-made and clear. But may be serious problem with this project. In practice inside the battery there is a step-up and this is what allowing to have 9 real volts, while the batteries with two li-ion elements have only 7.2V. These i great but it should have 3 defects and the third is dangerous: 1- the space dedicated to the battery is greatly reduced and therefore also the capacity. If the 102535 battery is 800mAh, the 9 volt virtual battery will have this value divided by 2.5 (which is the ratio between 3.7v and 9v) and decreased by the efficiency of the step-up converter: let's say about 350mAh. However 1, 5 times the best Ni-Mh batteries which however are 8.4 v and not 9. This is not the major problem 2 - if I have not misunderstood the switch is used to turn on/off the connection of battery and so the converter. So if we don't use our equipment it will be better to open it and turn off the converter which even if it consumes little but in a month would drain the battery without having used the tool at all. This for instruments where the battery is housed with a screw lock can be very inconvenient 3 - Do you know that there is "No over-discharge protection " in the circuit that you have used? do tou have an idea of what can happen?? I do not think so. The user of your project has no way of understanding when the lithium battery is running out also because the step-up continues to maintain the external voltage at 9 volts by completely discharging the lithium battery. Do you know what happens by discharging the lithium battery completely? in the best case you destroy the battery, in the worst case it can also catch fire.

[@catcity7509]

Excellent!! I'm doing a little project about it, i think it is very important to automatic switch on and off, i used to just connect battery to MT3608 boost converter, but is only can last about one week then just run out of battery, it suck. In my design, it will automatic switch on and off by pull MT3608's enable pin high or low depend on if it connect to load or not, but it don't work and make me so confused... I'm not a English speaker, i have no idea about what is the name of this " automatic switch " is correct or it had other name and the circuit diagram, if you can help me about it then I will so thankful, i hope my poor English can make you know what i talking about, and have a nice day!!

[@temmietopegold]

Nice work bro!! but the boost circuit on the module will damage your battery without a low voltage protection board. The module drains battery to 0.9v

[@TechTroppy]

Actually the battery has a protection circuit board that cut at 2.8v and prevents from short circuit

[@timbilliet1050]

true

[@Zebra_Paw]

So it’s perfect

[@juanchoserna8391]

I'm affraid the battery 102535 ( 10x25x35 mm.) that you state in the list of needed materials does NOT FIT togheter with the step up boost and the switch into the standard 9 volt battery case. This jeopardises all your fantastic work !

[@Byrkster]

Great video, where did you get the screw driver? LOL I cant find a 9v plastic case anywhere. My wife is ready to kill me stripping all the 9v batteries from the casings LOL

[@iqbalfa7069]

HAHAHAHAHA

[@joetri1970]

If you don't remove the battery and turn it off will the circuit board not drain the battery fast?

[@KJDOT]

No, the board quiescent current is about 0.5ma

[@Evhen_Velikiy]

This kind module will drain battery dry in a week! Personally i'm using two lipo cellphone batteries in series, so my multimeter can run for a year on a single charge.

[@dcd11mc60]

use a battery that holds more charge in then

[@cipridima9994]

me too,2 lipo cells fully charged are 8.7v, close to 9v since my multimeter work from 9.5 to 7v

[@HobkinBoi]

@@dcd11mc60 That's not his point. Boost converter modules will draw power when powered on, even under a no load situation.

[@Evhen_Velikiy]

@@HobkinBoi +++ DC-DC modules draw significant power even when there is no load.

[@johncoops6897]

If you actually checked the module specs, you would know that it states _Quiescent current: about 0.5 mA_ . With a 500mA battery, that's 1000 hours or about 40 days.

[@rakeshkumar-rf7nn]

Sir why used you plastic whire in video end and tep please reply sir please

[@sakethjasti8997]

Can u find an alternative for the fibre optic can u replace it with an led

[@snowflakehunter]

Fiber optic is the easiest way to do it and it's reliable.

[@juanelcraft214]

I hope they put it on the market

[@ManusWorkbench]

Nice brother ..good concept ...keep doing ...nice work

[@KJDOT]

Thank you

[@johnpatrickadem6294]

That's a good project instead of disposing used up batteries, you make them reusable by modding it

[@tehdreamer]

You have to dispose the toxic alkaline contects inside anyway plus i think he bought the case

[@vex9596]

That's a pretty neat idea, I wasn't aware of this module until now. Thanks for sharing!

[@KJDOT]

Thank you

[@netrapatil2169]

same bro

[@jahirulgaming354]

Ghar mein nahin karta ka status kyu Banaya deta hoon

[@erejepusenbaev5508]

Aziz

[@erejepusenbaev5508]

Dunyada hame texnykamenen shuģilansa eshoaxita tòmen bolmaydi

[@Papiii_benz]

Is it possible to charge this battery?

[@rohanverma6058]

I like the fibre optic, great work

[@karolinaciurej611]

@@ariprasathj838 Ty l do na

[@viejaspeliculasfilipinas3621]

@@ariprasathj838 I think she had a stroke

[@arun_maurya586]

Can we use the battery during recharging

[@srfrg9707]

There is no way I could cut the holes and fit the guts in the case without doing a mess, burning my fingers and cutting myself. Congrats.

[@CptVolkow]

That's why you do it again and again, until you master it

[@srfrg9707]

CptVolkow I am afraid I was gifted with 2 left hands...

[@shqcky]

ρε μαλακα δωσε μου εναν λογο να το κανεις αυτο.. Παρε εναν γαμημενο φορτιστη

[@JodBronson]

I guess someone doesn't know Rechargeable 9V Battery exist! 😵😵😵😵😵😵😵😵😵😵😵😵

[@shqcky]

@@srfrg9707 ορθογραφια

[@aaronflipnote]

what happens if you charge it too much?

[@usdd.govontiktok]

Thanks for showing me how to do it so I can save money for my smoke alarm

[@carsonmcnamer5321]

USDD don’t do that. It will die super fast and you will two when your house burns down.

[@АнастасияЗиганшина-д9я]

@@carsonmcnamer5321 и не только в 1 и в магазин с дочей

[@muthulakshmisundarapandian7303]

How much time we should charge the battery

[@SonariNeiracchen]

this will eliminate my annoying smoke detectors.

[@jusb1066]

no it will be worse, a smoke detector battery is a single use lithium (it should be) this is running its dc-dc converter all the time, the single use lithium will work for 10 years, this will run about a week (it uses 15ma standby)

[@SonariNeiracchen]

Good point. I wonder if there's a way to trick my smoke detectors into thinking there's a full charged battery, even if it's a safety risk

[@johncoops6897]

@@jusb1066 - IT DOES NOT USE 15mA Standby FFS read the specs properly. However I agree it's a dmb idea to use this in a Smoke Alarm.

[@manuelbenaventemoreno7313]

Really the clean and finest work on a 9V battery! Cheers from Spain

[@sibermak6136]

a adjuster you use how much voltage can take from battery Can I give 7.4V to board from battery

[@abdulrahim88th]

Uncle my laptop start button is not starting what shall I do can you make the video and show me how to start the laptop start button

[@星空女神-y9r]

自製萬應充電電池! 簡單又實用! 小巧好攜帶! 市面上的充電電池百萬種 有的是比較昂貴難以下手== 想充電時拿出你的手機線 就可以充電囉！ 自製萬應充電電池 簡單又實用!

[@KJDOT]

谢谢支持 (°∀°)ﾉ

[@鄭晉評-n5t]

裡面真的長那樣嗎

[@ningappashiddappanavar2869]

@@鄭晉評-n5t ningappa

[@kaivalyasable5379]

But which battery used please tell name

[@Thecubemaster10]

Cant you already buy rechargeable batteries?

[@JodBronson]

Spend an Hour+ to make ONE Battery.... Spend an Hour at Burger King working.... You can buy 2-3 Rechargeable Batteries! TIME = $$$$ - LMFAO 😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵

[@garrfieldtodd3349]

Jordan Bronson hahaha yeah that's why you work at Burger King

[@garrfieldtodd3349]

I am watching you.

[@Tomas_Prucha]

To what is the switch playing roll in this battery?

[@cameraliefhebber5447]

Net wat ik nodig had!

[@rvengatraman9990]

Anna this battery name what's

[@johnyrondon4813]

Congratulations, fantastic,, wonderful.. too good to be true. Hello from Venezuela.

[@ابوجاسم-ي1ص8ر]

خهعتبىءبسؤييروةوىبانلبررؤؤيسؤؤءسىاب..نلنبتالبوىبييملييسكىىؤمىررءءءبسرىىوةوظاببتلاانلنبيسشششتيءنيةينببستس

[@madmabar4903]

Useful for testing....but cannot be used in the long term, it drains quickly...consumption of 5mA from the elevator module.

[@MarkoVukovic0]

This is a great idea, thanks for sharing! Question: if the switch is on but no load (i.e. multimeter or whatever is off), will the battery still discharge?

[@dominikworkshop6007]

Yes, it will discharge, somewhen

[@MarkoVukovic0]

@@dominikworkshop6007 thank you!

[@সাকিবখান-ম৩ঝ]

NICE

[@wiwatpin]

Good job. It's hard/difficult to do so. Buying one from the store near my home may be justified.

[@shashank.c5849]

Why have you add optical fiber

[@felipeloera7644]

While this is a brilliant idea, you wouldn't want to use this battery in something like a mult-meter or somethign that's screwed shut because the boost converter circuit will drain the battery quickly if left on but to shut it off you'd be screwing and unscrewing the back panel constantly.

[@hamzaibrahim1163]

Like what I was saying 🤣🤣

[@electronic7979]

Very nice project 👍

[@KJDOT]

Thank you

[@LordGryllwotth]

You linked to a high discharge lipoly battery. I would reccomend a liion, because liion's are more energy dense tha lipoly.

[@rightcook4207]

Koi ye bata sakta hai ke jis se ye battery cut kar raha hai wo kia cheeze hai

[@sandroz321]

The current absorbed in standby by this board is too high (15mA), turning off the switch every time is very uncomfortable

[@taunteratwill1787]

So is reading your whining comment. :-)

[@markleng67]

@@taunteratwill1787 He DOES have a point.

[@taunteratwill1787]

@@markleng67 Just 'taunting' :-)

[@KJDOT]

Static current is about 0.5ma

[@sandroz321]

@@KJDOT It depends on the battery voltage(the lower it is, the higher the quiescent current) but it's too high 0.5mA, in 1-2 months the battery is flat. It is more convenient to use two identical batteries in series of smaller capacity without boost converter. Your idea is very good but not easily usable every day.

[@jojoschwammal3879]

Do you charge the battery with 5v charger for mobiles?

[@CraftyPrapty]

wow Awesome idea!i will try

[@ashaik1568]

Wow i just noticed u were a yt

[@ashaik1568]

And a really good amount of subs

[@sabithasan722]

A battery Dam Koto

[@sabithasan722]

23

[@sabithasan722]

battery Dam Koto

[@palagiriasif7866]

How many times we can use like this

[@BeachTimeGamer]

That is unbelievable! Love it! I never saw that

[@KJDOT]

Thank you

[@neilsenbautista7186]

Is the module have overcharge protection?

[@seanlim6217]

yes, but, no overdischarge protection. based on mt3608, it stops at 1.98v which is not healthy for a lithium battery.

[@neilsenbautista7186]

@@seanlim6217 thanks for replying man

[@sahibdipsandhu]

using fiber for the light was smart as fuck ngl.

[@carlos2004]

agreed. another solution is using the clear hot glue and just dabbing a line of it

[@SuperFreeEnergy]

Very Good 👍👍👍

[@DarcyWhyte]

I danced through the entire video...

[@rtwmali]

Darcy Whyte 😭

[@komalpatel1427]

Which battery do you use

[@johncoops6897]

The battery used is the one shown in the video. There is also information in the Video Description. You have eyes... so just open them.

[@goonmaster_7]

Kid: Asks Mum if he can do this Mum: NO

[@ศิริเพ็ญญาณลาพ]

Ikkk

[@ศิริเพ็ญญาณลาพ]

Bb b B

[@ศิริเพ็ญญาณลาพ]

Juiuuuuuu

[@StaticVapour590]

Clever thing gotta admit, but how long does it last?

[@sakshiseth1166]

1:53 I realised my life is a lie

[@GRBtutorials]

abdul bari They’re not custom made, they’re standard size batteries and you can buy them. However, they are not AAAA batteries, but a slightly smaller size, LR61.This is much more clear in the IEC name: 6LR61, which is 6 LR61 batteries.

[@retiredchannel451]

Efic

[@retiredchannel451]

She would have liked that too and then and then I would be good to hear her a note that the virus was here

[@mdjarif1254]

G lol p0pp lol pop

[@MrShush_singh]

Please Ghar ki battery charge

[@avinashaarya5977]

Hello KJ from which website I will get this in India please suggest me ok nice masterpiece

[@electric_mix]

Nice job

[@محمدالزيدي-ق6غ]

اس

[@محمدالزيدي-ق6غ]

و

[@Youtechnoid]

Good idea but Li ion/LiPo without BMS Will make it damage if under voltage

[@giuliatolli2428]

Yes it is so. Also because the step-up will hide the natural drop in the battery that is being discharged

[@francescacosentino6975]

in the best case you destroy the battery completely discharging it , in the worst case it can also catch fire.

[@jyotirani8232]

Waw, just amazing.🙏

[@KJDOT]

Thank you

[@Yourdarknesstolight]

What is the use of optical fibre in this experiment?

[@MuSiCaTor7]

Transparent fishing line fiber. An inexpensive way to carry LED light.

[@manusunny3395]

Wow nice brother .. it's good having a rechargeable one ..nice ..keep doing

[@KJDOT]

Thank you

[@manojsoni8119]

Bro Can you please tell me which machine you are using at 2:42

[@OmerKing916]

Can you do this in 5v Battery?

[@ChainFire13]

Yes, the module will let you adjust the output to any voltage

[@mesaffyt8844]

මඒමහටාවදෙෙවනවප යයව

[@potatoman220]

Why you make the switch and the light

[@vadameal]

La idea es buena pero no me convence. La carga le va a durar muy poco, porque es una batería de 500mah, depende del dispositivo al que se conecte es posible k dure como 10 min

[@eldiaadiadeuningenierocivi6223]

No se de corriente pero si te creo, que lastima, porque si me parecio una idea excelente.

[@alejoalbornoz5334]

Hay algo qud no entendí,como una bateria de 3,5 v fue llevada a 9

[@vadameal]

Fue elevada gracias a la placa de circuito que le añade. Debe tener algún amplificador operacional y estabilizador

[@juanchoserna8391]

kzbin.info/www/bejne/Zp_VdZSwYp2eic0

[@GoogleUserPH]

HOw many days using it battery?

[@MCsCreations]

Fantastic work, bro! Really nice! 😃

[@KJDOT]

Thank you

[@juanchoserna8391]

As a matter of fact if you follow the link, the battery shown is 902530 ( supposedly 9x25x30 mm) which in any case would not fit together with the booster

[@emmanuelsainniget6679]

Quelle est cette chose

[@digitalhands6304]

you need to remove the battery and turn it off everytime you finish using your device. because the boost converter will keep consuming energy if you leave it on. good idea, but useless.

[@fay296k]

No , with quiescent current of 200 micro amp and 500 mah battery it is enough for more than 2 month

[@azhariqbal185]

Most boost covertors are 90% to 96% efficient. So you only end up with a battery that has a slightly smaller capacity rating than if you were not using it! Still a good idea in my book as the voltage is constant over drain period as compared to old NiMh cells!

[@plebflayer666]

this is brilliant. how many days did this take to complete?

[@nopparuj]

Less than 1 hour

[@JodBronson]

I guess someone doesn't know Rechargeable 9V Battery exist! 😵😵😵😵😵

[@JodBronson]

@@nopparuj - Spend an Hour+ to make ONE Battery.... Spend an Hour at Burger King working.... You can buy 2-3 Rechargeable Batteries! TIME = $$$$ - YES, listening to my advice you MAY learn something! LMFAO 😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵😵

[@nopparuj]

Minimum wage in some other countries is fucked up, for example making about $10 per day working 10 hours a day, and a rechargeable battery cost like $13, and the cheaper one probably break in one month.

[@yahyaedisusanto579]

Woww...amazing..

[@vickyffgamer1118]

How much cost is it

[@PavanInventions]

This is the best 😃😎

[@muniswamy8279]

We can use 18650 battery

[@giuliatolli2428]

inside the cave of an old 9 volt battery? impossible!!

[@radheshyamverma9737]

from were do we get ckt used in this vedio

[@ozanboz510]

Everything you do is really nice

[@KJDOT]

Thank you

[@09shirish]

It's very useful to do !

[@gabrielabarrera141]

hi, I have a question.... when you charge the battery, the LED change color when is full?