How to make a Powerful Rechargeable LED Emergency Light at home DIY Homemade LED Light / Lamp

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  • Опубликовано: 18 ноя 2024

Комментарии • 714

  • @sharmeenhassanhassan2667
    @sharmeenhassanhassan2667 8 лет назад

    good job! it's really a powerful led light & ez to assemble. thnx for the vdo.

  • @monaxp606
    @monaxp606 8 лет назад

    Greetings from India.

  • @Slaschijt
    @Slaschijt 8 лет назад +10

    No clickbaiting I like it

  • @shannonamend
    @shannonamend 6 лет назад +1

    My works too. Used Avasva handbooks and build it with no problems.

  • @MrRiskyy
    @MrRiskyy 8 лет назад +14

    Were did you get the battery from

  • @SalemAbuOmar
    @SalemAbuOmar 8 лет назад +3

    great work
    what about using 12 v battery
    and why using the resistor

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад

      Battery power could be increased for more during but you'll have to adjust the voltage for led as per its requirement.
      Resister is decreasing voltage to 3 volts for the charging led.

    • @SalemAbuOmar
      @SalemAbuOmar 8 лет назад

      if i have 12 v battery can i use the led

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад

      Of course! you can use it, but you'll have to make adjustments for the leds. Here I am using 3 volts led connected in parallel on an aluminium plate while my battery is producing 4.7 volts which is little bit dangerous for leds, that's why I am not fully charging my battery. If you will use 12 volts battery then there will be several ways to do that. You take four sets of 3 volts led & connect them in series or you use higher volt led lights. 2 of 6 volts in series or directly use 12 volts leds.all are depending upon led input voltage.

    • @SalemAbuOmar
      @SalemAbuOmar 8 лет назад

      Thanx

  • @TANMOYSINGH
    @TANMOYSINGH 5 лет назад +1

    Charge hone mey kitna time lagega??

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  5 лет назад

      2 hours men ho jati hy. Depend karta hy k charger kitne amp ka hy. ziada amp wala jaldi charge karta hy.

  • @amiya19277
    @amiya19277 8 лет назад +5

    Thank you, You are a Make In India

  • @Slaschijt
    @Slaschijt 8 лет назад +10

    Just Keep uploading and you'll gain more subs

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад +1

      Thanks for your advise & comments.

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад

      of course

    • @Slaschijt
      @Slaschijt 8 лет назад

      creative invention he just answerd

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад

      Yes dear! Every channel creator who work hard, use his senses, do a deep research, make sensible videos he earn from RUclips. I visited your channel & did find any thumbnail which is a front face of your video. First learn about youtube, refer tutorials and think what are the basic requirement & improve your videos then you will get some sugar.

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад

      Sorry Sir. He commented in a wrong place.

  • @LangyamKonyak
    @LangyamKonyak 5 лет назад +2

    Can you please suggest me What type of LED plate on Amazon? Link plzzz

  • @dipikkeyang4532
    @dipikkeyang4532 7 лет назад

    sir your idea of making this video is superb ,I want to make this at my home...

  • @SiyamandRashid
    @SiyamandRashid 7 лет назад

    thanks for sharing this.
    if i want to make 12V battery rechargeable and 24v what i need ?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      Do you want to make the same led light with 12 volts battery?

    • @SiyamandRashid
      @SiyamandRashid 7 лет назад

      thanks alot for the reply,
      actually what i want is : make my Home 12Watt Led light as emergency light.i guess i can use same way you did but maybe we have to use different equipment
      the light is something like in this link
      www.rayzun.com/led-panel-lights/16-rayzun-12-watts-led-panel-light-round.html

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      the led iight in the above link run with 85-265 Volt AC means it works on 220 volts directly & can not be run with the battery.

    • @SiyamandRashid
      @SiyamandRashid 7 лет назад

      Science & Technology Experiments thanks alot for your reply,
      i have LED , which came with led drive( convert the 220 to something like 12watt, when i remove the led driver and direct connect the led light to a 12v source it works... and i want to make it rechargeable and works as emergency light

  • @newcreative9543
    @newcreative9543 4 года назад +1

    Bro Can you plz tell me is it has protection for battery to over charge?

  • @AbirSpeaking
    @AbirSpeaking 7 лет назад

    I had a business of selling this rechargeable lights. good old days. I will be making a video similar to this.

  • @firealarmsnstuff
    @firealarmsnstuff 7 лет назад

    Hello! Is there a different diode you can use besides the IN4007? They don't have any at my local radio shack. Thanks!

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      Look for any dead cfl and remove from its circuit inside, there are plenty. Good luck.

    • @firealarmsnstuff
      @firealarmsnstuff 7 лет назад

      Thanks! I have a dead CFL that I'll open up! Thank you for your response!

  • @electronicshelpcare
    @electronicshelpcare 6 лет назад +1

    helpfull video

  • @suvendukumar550
    @suvendukumar550 2 года назад +1

    3.7 VOLT BATTERIES USED KORSAKTE HAI SIR

  • @akashbalaji3781
    @akashbalaji3781 7 лет назад +7

    how much cost is that 4v rechargable battery

  • @sayeedbaig8348
    @sayeedbaig8348 5 лет назад

    Very nice video can u show me from where u get the top cap of battery.

  • @SurajSingh-fz4ho
    @SurajSingh-fz4ho 5 лет назад +1

    Superb sir now i am your fan sir

  • @greatnewidea3786
    @greatnewidea3786 8 лет назад

    mai ap ki video bhot dekhta hu

  • @chikumoshay828
    @chikumoshay828 6 лет назад

    Wooooow!!!!!!!!!.Its awsmmeeee. Thanks 4 this idea bro..............

  • @hasnain079
    @hasnain079 7 лет назад

    I recently bought the same battery ... can you please upload a video of simple circuit to recharge the battery....

  • @eukaliptal
    @eukaliptal 7 лет назад

    Hello, I have one question. If you leave the charger plugged does the batery blow up when it is filled up? does it heat up? what happens? does resistance increase exponentially? Thank you!

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад +1

      I am leaving it on charging for whole night daily, but I am wondering its doesn't heat up or blow up but its almost full in two hours.

  • @NonnofYobiznes
    @NonnofYobiznes 8 лет назад

    I was going troll but... hell, this is actually really cool. The only thing that makes me uneasy is the heat of the LEDs right against the battery.

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад

      I'm using it daily 2 hours x 3 times due to electrical load shedding. Leds are placed on aluminium plate & heat up a little bit in starting when battery is fully charged & after few minutes it becomes normal & doesn't heart the battery casing. Thanks for your valuable comments.

    • @vikas9909
      @vikas9909 7 лет назад

      agar 1ampier ki battery lagani ho to yahi parts lagane h ya change krne padenge

    • @vikas9909
      @vikas9909 7 лет назад

      u can send me WhatsApp number

    • @kushalbhaskar4401
      @kushalbhaskar4401 4 года назад

      @@vikas9909 Isime ho jayega... kuch change karne ka jarurat nahi...

  • @sumankumari5247
    @sumankumari5247 6 лет назад

    Nice invention

  • @arunnshinde8973
    @arunnshinde8973 7 лет назад +1

    hey man u so good at thinking everyone can use these ideas keep uploading videos so ausome i will support your ever video keep it up

  • @saad7417
    @saad7417 6 лет назад

    There is a cap on two holes in middle, if it stayed open for few months, is the battery still useful.

  • @qhackers3814
    @qhackers3814 7 лет назад

    nice video sir g

  • @krishnakushwaha4896
    @krishnakushwaha4896 8 лет назад

    does the leds glows along with charging ...
    or the leds goes off if the charging power is on

  • @klaxmanrao7777
    @klaxmanrao7777 7 лет назад

    I am doing this 100% working

  • @sanjaykumarsahoo9582
    @sanjaykumarsahoo9582 7 лет назад

    Bhai 9w ya 7w led bulb use kare to us hisab se kitna resister and diode and battery chahiye..

  • @amitj7373
    @amitj7373 6 лет назад

    Bina resistor k bhi use kr sakte h kya? Aur diode ki rating kya h?

  • @frenkief7128
    @frenkief7128 7 лет назад

    that is really good, but a little complicated to make

  • @sj_creations_video_status3087
    @sj_creations_video_status3087 6 лет назад

    nice one simply led touch

  • @OmarAlvi
    @OmarAlvi 7 лет назад +2

    can we use IN4001 instead of IN4007 for this project.

  • @amitj7373
    @amitj7373 7 лет назад

    Diode aur resister k bina battery charge ni hogi kya?? Agar direct nokia charger se connect kare to?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      bilkul charge karega. agar charger ka switch off hua to charger battery current consume karne lagega. isay rokne k lye diode lagana zaruri hy ta k charger ka current aik taraf flow karey aur battery ka current wapis charger ki taraf na aye. Thanks for comments.

    • @amitj7373
      @amitj7373 7 лет назад

      Science & Technology Experiments thanks

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      welcome

  • @hazimreitz
    @hazimreitz 6 лет назад

    My battery was fuming when I returned after 30 minutes, maybe the battery faulty??? or is it because I use a 2A charger??

  • @akashbalaji3781
    @akashbalaji3781 7 лет назад +5

    how much hour does the charge exist for one charge !!!

  • @santhosh_mankali
    @santhosh_mankali 7 лет назад

    Hello, how the battery charge cutover is being taken care? If it gets over charged what will happen?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      No protection circuit is added in this project. You will take care of it yourself to keep charging for approx. 2 hours. But I leave it on charging for whole night & nothings happens even battery is not heating up.

  • @wordart5675
    @wordart5675 6 лет назад

    idea bahut aksha laga

  • @shivaprasads3476
    @shivaprasads3476 8 лет назад

    nice...
    subscribed ....but where to get recharging port

  • @mandalmeghlal2639
    @mandalmeghlal2639 6 лет назад

    Mast hai bhai laken gara slow karte to ham ve ligjt bana te

  • @z-medianetwork408
    @z-medianetwork408 8 лет назад

    It's cool & useful as well. nice video.

  • @saadijz4286
    @saadijz4286 8 лет назад

    how much time does this battery takes from o% to 100% while charging what is capacity of this battery and what about over charging?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад

      It charge within 2 hours, depends upon your charger's amp and well works for two hours during load shedding. But I kept on charging for whole night & nothing happens (no heat up). I will upload the new video soon the same rechargeable light with salvage laptop cells & I hope it will increase the duration.

  • @technicalsahana4847
    @technicalsahana4847 6 лет назад

    Very good idea

  • @sundargadiadada
    @sundargadiadada 5 лет назад

    Max kitna time charge karna chahiye aur kitna time backup deta hei???

  • @pehlapyar3663
    @pehlapyar3663 7 лет назад

    Hello sir,
    It was wonderful Presentation, I really liked it, Sir can you please provide me the full information of that "LED Plate" which you have used in these Project, and is this available in the EBAY.IN ?

  • @KK-ss7qf
    @KK-ss7qf 6 лет назад

    Can we use bigger battery

  • @biologyworkout693
    @biologyworkout693 6 лет назад

    When i plug the charger in it gives a brighter intensity once i pull the charger off it gives low intensity.... can you tell me what to do? Is there any battery issue or what? And if yes then how should i fix it!

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  6 лет назад +1

      Let the battery fully charged.

    • @biologyworkout693
      @biologyworkout693 6 лет назад

      Science & Technology Experiments bro! Still negative outcome!

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  6 лет назад

      Charger is providing 5 volts while charging. Upon removing, lower brightness means running with lower current. That means battery issue. Its not fully charging or that is not 4.7 or 5 volts battery. How much volt is your battery?

    • @biologyworkout693
      @biologyworkout693 6 лет назад

      Sir i have been using this light since last month. Its was a sudden accident ....though i didnt open it yet...its hard to tell you the exact voltage but i have the same size of light you are having....!

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  6 лет назад +1

      I have already told you what ever I understand. Its better to show it to any nearby technician, he will guide you better.

  • @samadhannikam5740
    @samadhannikam5740 7 лет назад

    nice videos sir ji thanks for guidance

  • @technicaltricks9351
    @technicaltricks9351 6 лет назад +1

    switch k upar vala cover hmko chahiye , kaise mileage?

  • @mustafaasif6977
    @mustafaasif6977 6 лет назад

    Sir agr me 12v ki battery lgau to chrger 5v ka use KR skta hu na ??

  • @qhackers3814
    @qhackers3814 7 лет назад

    good video

  • @josetemblor5047
    @josetemblor5047 8 лет назад +15

    how do we know if the battery is full?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад +2

      Brilliant question! More circuit will be added in this regard.
      I checked physically it takes 2 hrs to be fully charged & once I left it whole night & nothing was happend & the battery was fully charged without indicator. Now its all up to you, what to do.

    • @josetemblor5047
      @josetemblor5047 8 лет назад +1

      thanks bro.. nice video

    • @Magneticitist
      @Magneticitist 8 лет назад +5

      I was thinking, battery looks like it has enough mass to where it shouldn't be a problem leaving the charger in all night... but can I recommend you try using a USB power bank for one of these lights? those cheap $3.99 banks. you can just buy it as-is, and use the cell and charging circuit included with your leds attached to it through the switch. the charging circuit will automatically ramp the charge current down to 0 once the cell has reached full charge. I find those 18650 cells to be super handy and they're everywhere nowadays.

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад +3

      Its really a cool idea.

    • @vikas9909
      @vikas9909 7 лет назад +2

      send me WhatsApp no.

  • @mustafaasif6977
    @mustafaasif6977 6 лет назад

    Sir chrge krte waqt diode bhttt garm hojrhaa... Maine diode change v Kiya again garm hojrhaa in4007 rply me & help

  • @shanayamehta2691
    @shanayamehta2691 7 лет назад

    Is the diode in forward biased or reverse biased? Please help

  • @sabitabdi4380
    @sabitabdi4380 7 лет назад

    Hello bro where can I get a led plate like that can you share a link or anything please

  • @dipak.creations
    @dipak.creations 7 лет назад

    kya ap bateyenge ke ye rectifier kitne volt ka hai?

  • @lalitagrawal7150
    @lalitagrawal7150 7 лет назад

    Doide in 4001 laga sakte hai

  • @alliswell1166
    @alliswell1166 6 лет назад +1

    Haiii....
    I'm Paul from Tamil nadu I want to the LED board no....kindly reply...

  • @ankitkumar-nv5mj
    @ankitkumar-nv5mj 6 лет назад +1

    Kya hum new battry use kare

  • @spideyff2936
    @spideyff2936 6 лет назад

    For what you add 4007 diode and 1k resistor?

    • @kushalbhaskar4401
      @kushalbhaskar4401 4 года назад

      1N4007 diode is for stop the back flow of current from the battery to the circuit and 1 K resistor is for lower the voltage from charger to LED indicator.... Because charger voltage is 5.10 volt and LED driving voltage is 3.7 volt.... If you connect the LED directly to charger it will burnt out very soon....

  • @jahanzebahmed5964
    @jahanzebahmed5964 6 лет назад

    Brother sirf led plate ko powerbank se chala sakte hain?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  6 лет назад

      Ji bilkul laga sakte hen mgr positive connection k beech men aik resister lagana parega q k battery bank 5 volts ka hota hy aur ye plate 3 volt ki hoti hy to islye voltage thoray se reduce karne parengy warna leds garam hongi shuru shuru men phir jese jese bank k voltage kam hote jaengy to leds normal hoti jaegy. Video ko like karen, Thanks for comments.

    • @jahanzebahmed5964
      @jahanzebahmed5964 6 лет назад

      Thanx for your reply...
      And resister wohi lagana hai jo video mein hai?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  6 лет назад

      Wo charging led pe laga hy mgr plate par bhi wohi laga sakte hen mgr kam az kam 1 watt ka. 100 se 300 ohms ka laga lena jo 1 se 5 watts tak ka ho jo is resistor se bht mota hoga. us men aik led k lye quarter watt ka laga hy to is puri plate men bht ziada leds hen is lye wo garam ho jaega.

    • @jahanzebahmed5964
      @jahanzebahmed5964 6 лет назад

      Science & Technology Experiments
      Thanx for info. Brother 😊

  • @ahmedyousafzai3937
    @ahmedyousafzai3937 5 лет назад +3

    Good job.

  • @shadowvlogsbyarif047
    @shadowvlogsbyarif047 7 лет назад

    Diode keno use korsen bro ?? Kaaj ki eytar?

  • @SharkFishSF
    @SharkFishSF 7 лет назад

    Nice one buddy

  • @josetemblor5047
    @josetemblor5047 8 лет назад

    if the battery full light well off?

  • @RK-ug2cp
    @RK-ug2cp 6 лет назад +3

    led bulb kaun sa dukan me milega?

  • @manyasingh279
    @manyasingh279 7 лет назад

    Plz explain connections M facing difficulty while connecting them....

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      Make it according to the diagram shown in the video. Only the difference I made connection (negative to the switch but you make (positive) like diagram. Thanks.

  • @elijahlove9533
    @elijahlove9533 7 лет назад

    What is the thing you used to melt the metal called like a specific name pls

  • @krithuvlogs9
    @krithuvlogs9 7 лет назад

    Where do you purchase LED plate, i tried a lot in Banglore, but haven't got that.

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      I'm very sorry dear, I don't know about Indian markets. If you couldn't find led plate, just use 3 nos of 1 watt leds with star heat sink & join them in parallel. Thanks for comments.

    • @kushalbhaskar4401
      @kushalbhaskar4401 4 года назад

      You will get LED strip.... 50/60 LED is embeded on a 10mm aluminium strip.... Cut your desired length from it...

  • @enriquesalgadoaceves9017
    @enriquesalgadoaceves9017 8 лет назад

    I have a 5 watt led bulb, that gives out 55 watts of lumens, I want to make a rechrechargable battrry bank to hook it up to, solar that iis, so my questioquestion is, if the bulb iis 5 watts, and a standard 1.2v double as battery has about 3 watts in it , two should make 6 watts. Shouldnt that be enough to power the bub, its obvious thathat the bulbs resistor and capacitor are made for 120/220 current, so there may lie my problm, I thought since it consumed 5 watts a 9 volt battery would light it up , but doesn't work, so heres my question, how many 9 volt or As batteries do I need to light it up, tia

    • @tunahankaratay1523
      @tunahankaratay1523 5 лет назад

      It depends on how many leds are in series.

    • @kushalbhaskar4401
      @kushalbhaskar4401 4 года назад

      Wattage is not the problem.... Here driving voltage is the main criteria... the bulb is made to run with 120/220 volt, so you have to arrange for the designed voltage of the bulb(i.e 120/220 volt)

  • @mustafaasif6977
    @mustafaasif6977 6 лет назад

    Sir..resistor ka konsa side solder krna hai.. or kaise pta chlega ki konsa side right h

  • @creativecommonsall9819
    @creativecommonsall9819 7 лет назад

    ye bai ek bat batao ye sab instruments kaha melega .....dokan pe Jake kya nam se pochonga....bai mereko batado .....q ki muje banana hai......rply plz

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      4 volts battery, 3 volts led plate, dc switch, diode, resister, led. Sab parts k name video men likhey hue hen. Electronic parts market se milega sab saman. Thanks.

  • @anwarulansari6662
    @anwarulansari6662 7 лет назад

    very good job

  • @ModifywithManoj
    @ModifywithManoj 7 лет назад

    the led plate is of 12 volt?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      Its 3 volts.

    • @ModifywithManoj
      @ModifywithManoj 7 лет назад

      +Science & Technology Experiments . why the leds don't get blow out with 4volt battery, coz the led is 3 volt ?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      It doesn't blow until more than 5 or 6 volts are not supplied. It will little bit heat up for some time until the battery reaches at 3 volts.

  • @guzelovalish
    @guzelovalish 8 лет назад

    How long does the 1,2 A battery last ?

  • @creativecommonsall9819
    @creativecommonsall9819 7 лет назад

    acha ek bat batao ye instruments muje kaha pe milega in my area ......hlp karo....yr I wana mke ths.....rply karna.....

  • @naturalwind942
    @naturalwind942 7 лет назад

    What happen if I use 4v Battery with 24 pcs 4v dc LED SMD and 1k resistor, gener diode IN4007 ?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      It will work but battery will be consumed faster because of more watts are used.
      Resister is used to glow charging led, if you will use 1k resister then it will glow very slightly so use lower value of resister.

  • @Smart-Skippy
    @Smart-Skippy 8 лет назад

    +Science & Technology Experiments I have been to Karachi! :-) Wonderful people and a beautiful city.
    Thank you very much for a different invention. 4V... That is interesting. I'm guessing it is a pair of Lead acid cells in Series.
    Never seen anyone use a cell like this on RUclips. Take a bow.
    An idea for a new video.... I found a dozen LED tubes that go into replace Fluorescent tubes. all have bad power supplies...
    The supply voltage is between 56 and 85 volts. (3 different types of tube.)A buck converter. The idea I had was on the numbers on the led boards. and possibly a way to recycle the "tubes", but rewiring them to use a lower voltage. Just an idea...
    Thank you for making the video and for doing it rather well. I'm not sure how to say thanks in Urdu or Pashtu, so its English.... Thanks from me in Perth Australia!!

  • @addy.is.live1
    @addy.is.live1 8 лет назад

    where did u got that cover

  • @a_complete_mess3634
    @a_complete_mess3634 5 лет назад

    what is the use of the diode?

  • @lezbriddon
    @lezbriddon 8 лет назад

    circuit diagram doesnt show battery, or if the battery goes to vcc+ and vcc- , then it cant charge when off as its the wrong side of the switch???

  • @saadsaad-zo9fx
    @saadsaad-zo9fx 7 лет назад

    where do you buy led penal in karachi

  • @poonamsingh4497
    @poonamsingh4497 6 лет назад

    from where would you get charging socket

  • @pumkingod6682
    @pumkingod6682 6 лет назад

    what is the use of diode please reply

  • @adolphagaming
    @adolphagaming 6 лет назад

    How much amh that battery have

  • @any_funny_video6284
    @any_funny_video6284 5 лет назад

    Useful video

  • @abhisheksaini2568
    @abhisheksaini2568 7 лет назад

    very nice video i like it

  • @sumandharmik2118
    @sumandharmik2118 6 лет назад +3

    nice vedio

  • @sparanththaaman8540
    @sparanththaaman8540 7 лет назад

    Where I can get those led plate, specificatio n please

  • @shivaprasads3476
    @shivaprasads3476 8 лет назад

    sir..I made it...but when I put in charge the led is not getting on. when I charged first it blinked and later led was not on...does it means it is not charging..

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад

      Its charging, but your led is burnt. Check two things...1) Check your transformer voltage, it might giving much more volts than 5 volts...2) The resister you attached is not resisting current. Increase the value little bit to protect led & change the led. Thanks.

    • @shivaprasads3476
      @shivaprasads3476 8 лет назад

      is there any problem if i didnt do that....thanks for replying...

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  8 лет назад

      Not necessary, if battery is charging then its ok.

  • @MuhammadYaseen-vx5hw
    @MuhammadYaseen-vx5hw 4 года назад

    good video...

  • @abina.j7864
    @abina.j7864 7 лет назад

    What is the glue used

  • @prizebondumeed1729
    @prizebondumeed1729 7 лет назад

    Same light mery pas hy but usy jab charg par lgao to on hoti hy charger hta lo to phr on nhi hoti? Meny 6 hour charg bhi kia but phr bhi on nhi hoi charger k bagair?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      Bhai apki battery kharab ho gai hy.

    • @prizebondumeed1729
      @prizebondumeed1729 7 лет назад

      Science & Technology Experiments meny multymater sy chak kia to 12, 13 volt bta rha hy reading

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      volt to bata raha hy mgr ampere nahi jama kar raha andar. current store nahi ho rahi battery men isi lye charge bhi nahi ho rahi battery.

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  7 лет назад

      Led ya bulb volt se nahi jalta, current se jalta hy jisey ampere se naaptey hen.

    • @prizebondumeed1729
      @prizebondumeed1729 7 лет назад

      Thanks brother
      Wesy sirf battry kitny tak miljygi Karachi me?

  • @ProfessorInventor
    @ProfessorInventor 3 года назад

    Weldone

  • @ChSikki
    @ChSikki 7 лет назад

    Which video editing software do you use?

  • @shahadathossain6005
    @shahadathossain6005 5 лет назад

    How to use this kind of battery for arduino power supply?

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  5 лет назад +1

      This is 4 volts battery. You may calculate as per your requirement. Better to go with 3.7v 18650 lithium battery. Thanks for comments & watching.

    • @shahadathossain6005
      @shahadathossain6005 5 лет назад

      Is there will be any problem if i use this kind of battery in arduino power supply? Or should i need some sort of filtering ckt for using these batteries.

    • @ScienceTechnologyExperiments
      @ScienceTechnologyExperiments  5 лет назад

      @@shahadathossain6005 I didn't use arduino and I have no idea about.

  • @luckymali6966
    @luckymali6966 5 лет назад

    bhai mere pass bettery 4v 1.0ah ki he to kuch parivartan karna hoga kya