Vintage Japanese Flashlight Restoration
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- čas přidán 12. 07. 2021
- Vintage Japanese Flashlight Restoration Video
Original Flashlight
6 D-batteries 1.2v x 6 = 7.2V
Light bulb 7.2V x 0.55A = 3.96W
Waterproof
New Flashlight
6 Lithium batteries 21700 3.7V 4500mah
Rechargeable Battery pack 10C 12V 9Ah 108Wh
Lamp bead 4.2V 30W 8A
Reflector diameter 11 cm
3.4 hours usage
Waterproof
Battery Information ($8)
Model: 21700
Size: 21 mm in diameter, 70 mm in length
Weight: about 68g
Rated voltage: 3.6V
Capacity: 4300-4500mah
Internal resistance: about 15
Charging voltage: 4.2V
Discharge cut-off voltage: 2.5V
Discharge current: 3C discharge (5C discharge can be achieved instantly)
BMS information ($2)
BMS 3 series 12.6V 20A lithium battery protection board (with recovery function-AUTO Recovery)
This product is an enhanced version: suitable for electric drills with starting current below 60A.
Scope of application: Lithium batteries with nominal voltages of 3.6V and 3.7V (including 18650, 26650, polymer lithium batteries)
Product size: 59*20*3.4 mm
Product weight: 4.3g
Charging voltage: 12.6V-13.0V
Continuous discharge current (upper limit): 20A (If the heat dissipation environment is not good, please reduce the load current to use)
Continuous charging current (upper limit): 10A
DC step-down converter (buck converter, $3)
Input voltage: 7 -32 V (without constant current, 5-32V)
Output voltage: (1) Continuously adjustable (0.8 -28V)
Output current: maximum 12A
Typical application: Adjustable power supply (12A power is large enough), high-power LED drive, LED display drive, lead-acid battery charging, lithium battery charging, car power supply, car laptop power supply (buck), regulated power supply, low-voltage system power supply, (such as children The toy car uses 12V battery to step down to 6V), 24V to 12V 12A \\12V to 5V 12A \\24V to 5V 12A \\24V to 19V20V, etc., the application range is very wide.
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you will get 10% discount with code: 10%JG
I hope you find this video useful and enjoy it!
Not only that, but I am happy to receive feedback, suggestions to improve myself.
!!! I'm sorry for the mistake if I did in this video !!!
** I still keep some parts, I want to help the world environment **
Thank you very much for your likes, comments, and subscription!
Have a nice day
Gear Show - Jak na to + styl
You keep my mind at ease good sir, never stop!
Thank you!
you can direct power to 4.2volt, put all cells in parallel without stepdown
I think so.
Charging 6 cells in parallel will take ages because of the capacity :P
I think so to
@@micha3502 But if you have them in parallel, sure it will take longer to charge, but the flashlight will last longer on a single charge, so isn't that better?
Jj
Los materiales de muy buena calidad perduran en el tiempo felices alumbramientos
Simple, easy and fun project. I enjoyed watching this one. Thanks!
Ok
I do like this project. I thought about transforming such type lights myself. Thanks for posting it and keep them coming. I was wondering about the power controller getting hot. You are controlling a lot of current. Heat sink(s) are important. Thumbs Up!
Hello. Great project and beautiful restoration, I liked it👍
Merci 🙏 vous faites de beaux travail
Oh, I've seen same one at my home 25 years ago.
Your videos are so inspiring. I hope to be able to do some of that work in my free time in the future.
We conduct
It would be more efficent to create a 1S 4P battery pack as this woud be colser to the required voltage.
this is better as the power wasted (causing your heating issue) by the buck converter (it would be a boost converter with my suggestion) is proportional to the size of the voltage change between its input and output.
I loved the video btw.
Yes, he did a 12v pack useless
That with losses being proportional to the voltage change only applies to linear regulators (which works basically like variable resistors). For a buck converter, the higher input voltage is used to store energy in an inductor, which is then released thru the freewheeling diode - which gives more current to the load than what's coming in on the input. It works pretty much like a transformer, but for DC.
Same but the opposit, applies for a boost converter - energy is stored in the inductor that is then used to boost the voltage. A boost converter will always have higher input current, as long as the output voltage is higher then the input voltage. Both buck or boost converters have 90% efficiency or more, if it's a good design. I think the main problem he had with the first buck converter was that it was simply too small, so it was overloaded (which increases the losses significantly).
No LEDs can be driven directly from the batteries anyway - they always need a drive circuit. It's not like a typical resistive load, such as the incandescent light bulb that was in the flashlight before. An LED can be barely lit at for example 3,8 V while it may blow up at 4,5. The voltage of the batteries usually varies way too much depending on their state of charge. The forward voltage is also temperature dependent, so they may run fine on a certain voltage when cool, then they become overloaded when they have been on for a while and get hot (a driver will usually compensates for that by lowering the output voltage slightly, to keep the current constant).
Charging will be a problem with 1s4p ( no any BMS & charging module to keep the unit safe ) . Using Buck Converter is a best solution.
One of the coolest videos i ever seen honestly!! I really want to do this with old VHS video camera batteries from the 90s cause those cameras back then would drain the battery in like 2 hours.. lol
Yes, you should try it. I've been to apply this concept to my old tools.
@@gear_show sir please pawar bank Nime
Brother the led always wants excessive current that would produce more heat and there are more power losses i recommend you to use 2 lithium ion battery of 3.7 volt in parallel and remove the 12 volt lithium ion battery and also remove converter and use a 10 ohm 1 watt resistor in series to led and bateery that would runs longs
Estupenda restauración de esta linterna japonesa vintage, respetos desde Venezuela.💯🤜🔥🤛👍🙏💯
Нцочкиое
Dear Sir
Its more than perfect restoration.
Obsolutely the best informational video, cant wait for thr next video. Really good thing is ur old videos has same logic lots of information amd practical solutions 👍🏻👍🏻👍🏻
Another great job ❤
Thank you very much, I have been waiting for you eagerly and have benefited from your work in remanufacturing a flashlight
Excellent job sir .Can you please provide for me the link where you buy this big reflector thank you.
Gear show de bola 👍
Очень даже неплохо 👌 лучше чем было однозначно
Restoration and modernization 🔥🔥🔥
Os melhores vídeos.
Nice vintage well done.
Спасибо за видео!!!
Top restoration 👏👏👏
Лайк за отличную работу.
이 영상을 보는 모든 분들이 존재하는 그 자체로 가치있고 충만하고 조화(造化/調和)로운 하루 되기 바랍니다.
정말 고맙습니다. 사랑합니다.
I hope everyone who sees this restoration clip will have a valuable, full of happiness , and harmonious day in itself.
Thank you very much.
God bless you! I love you.
You're welcome, I hope so. I'm so glad you love this clip. Thank you! I love you too.
@@gear_show ^_____^! ★♥
Great work👍
Thanks ✌️
Excellent project. I liked it ! My idol !
To think that before everything was done in Japan, and it lasted a long time. Now everything is disposable.
Perfect 👍
thank you teacher
Obrigado pelo ótimo vídeo
Which model exactly is the car battery starter?
Great video sir l love your all videos thankyou very much for this video 🙏🙏🙏🙏
Omg! i have one of these they are like headlights of a car
That's a handy gadget to have! What is the cost?
What emitter did you use? Should have used a warm emitter, around 2700K to keep the same color temperature as the stock light.
I really enjoyed you video. I watch them all. In UK Li-Ion batteries are very expensive. I converted a similar torch to 2S x 18650 and 1W led. The led works fine with 4.2v and lasts for hours. No need for voltage convertor and much less cost of batteries.
I'm glad you like my videos. I build 12V battery pack for fast charging reason. Anyway thank you for sharing.
@@gear_show You might be interested in my new video. It is making a small gear puller for small electric motors.
czcams.com/video/UC-6KvAKliQ/video.html
Hi! Can you tell me where you got the reflector module with an LED? link to the product?
I bought it from China detail.tmall.com/item.htm?spm=a1z0d.6639537.1997196601.231.3e0f7484SpxCSx&id=564465117845
@@gear_show thank you! And Good luck!
@@gear_show Can you help me find led on aliexpress or ebay or anther web?
Amazing work
Thanks again!
Good work or aise video banaiye
Bonne idée
where can I buy a tool like the one you use to charge your car battery
Love the channel keep doing your thing
I like this dude he shows it all mistakes an all great posting :-)
Good Job, verry nice.
Jaaaaaaa...Muy Bien my Friend...Saludosss ji ji ji
The Best channel of the world.
Rôeododpdrpprpe0e0e0e0ee0e0e0ee0e0e0e9e9e9e9ee9e9e9e99ee99e9e9e999oodoodododdorodoe9pppppppppo9pppppppppppppppppppppppppppppp0oop00pppppppp00pppppppppppppppppppppppppppppppppllllllllllllloooe9rr9r9e9e9eeoeoee9eoeeoeoe39e9339339339393939ee9e9e9e9e9oeeoeoeoeoeoee
.
@@quoctuantran8197٠٠
using a 4.2v lion battery is too great. High durability and strong
Yes, it is, thank you!
Bu videoyu ilgiyle izledim.
En çok o çocukların oyununu beğendim. Mutlu oldum çocukları mutlu görünce...
Very nice 👍
Thank you 👍
Una restauración es mantener sus piezas originales, esa es una modificación y una limpieza. Por tanto pierde su valor como lámpara antigua.
How do you get the stickers for the DeWalt drills
Parabéns.
Is there a reason you always use washing powder when cleaning the plastics, rather than a dish soap liquid?
I'd imagine its because the washing powder granules might have a slight abrasiveness to them to begin with which might help move dirt easier where as the washing liquid relys on its degreasing potential.
just to add after working on my car if I don't have any proper stuff to get oil and muck off I will use washing up liquid with a spoon of salt or sugar that helps greatly to remove the dirt.
Good ideas and information 👍
Where did you get the new reflector and led module?
Excellent👍👍👍 . Thanks for sharing
Sir please pressure washer restoration
i,d really like japanese flashlights!
Why don't you use 1s battery . It easier and more effective . Your skill is so good
Witam good jobb 👍 poszukuje latarka z ciepłą barwa wysokie CRI rozmiar tak koło 34 mm reflektor do 50$
Excelente muito bom !
why u connect 2 battery in series then 2 battery in parallel ? what happen if u use 3 battery only or 3 in parallel
看着很疗愈
Nice Upcycling... Like
I am addicted to ur restoration videos.
What do u do with all these products after restoration?
I'm so glad you like all my videos. All these products are in my workshop.
Advanced Congratulations for 500k 🥳
Good work! Thaks the video! Nice flashlight.
You.re best 👍👍👍👍👍
Thank you!
I think it's a modification, not a restoration, but I like this one.
Yes, I'm glad you like it.
No entiendo la coneccion de bateria se ve como serie.paralelo pero esta confuso si explicara seria.ideal
*What is the need of using buck converter U could hav connected the cells in parallel instead of series to get 4V output for the LED light*
I build 12V for fast charging reason.
@@gear_show fast charging is also possible @4V, This is waste of energy in Converter
I want such a gift too 😀
Cool
0:51 ha! Face reveal at this time stamp! Great job gearshow
😄 funny mistake!
Chinese face
The foam at the back of LED light might burn due to heat generated by the LED and back converter or DC/DC converter.
Very nice G.S... Thx for taking us along...
តំលៃប៉ុន្មានដែរ jumgand ?
VERY GOOD VIDEO!!!!!
Thank you very much!
Flawless!!! 👌👌👌
Bro your videos are very informative can you introduce your atelier +1
Хорошое видео
are you going to restore that car hihi
What is the name of that scorch type tape? 🤔
(Sorry for any spelling mistake) 😅
Colour and probably composition looks like 3M's VHB series tape, typically used for example in GoPro mounts.
Were are you from, Bro?
I am from Indonesia.
Good job. 👍
I'm from Cambodia, thank you!
It so nice to see new life breathed into older power tools, I really enjoy the lithium ion conversions as well. Your channel inspired me to fix a broken sawzall that was about to see the trash. After watching your channel I’m determined to try and fix instead of replace
Vẻy Good...!!!
1 menit komen ke 3 Dari Indonesia
Thank you so much!
Like for the video. Please tell me, what kind of cream is this? Write his stamp, please.
First put down into soil and then start restoration 🤣🤣
😂
Beautiful Work.
Emmm, why u did 3s2p if after u'll set stepdown converter with 4,2v??? Mb better doing just 1s6p??
The A-Team's theme song starts playing at 3:40
Why you series the batteries instead of parallel?
very nice
Класс ✊✊🎉🎉👌👌
Where can I get that car cream?
I wish I had the knowledge to do this
10:33 👍