Salvaging a $1 Fake Shake Light

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Introduction: Salvaging a $1 Fake Shake Light

About: USAF - Spec. Communications, Telemetry & Data Networking, Microwave Networks, Aeronautics Interests: Metal working, Electronics and Botany (especially wild edible plants, "Feed the world with weeds")

How to get upwards of $6 worth of parts from a $1 flashlight. So, if you bought one of these and feel ripped off, here is a nice way to make lemonade out of a lemon.

Step 1: Shake It, BREAK It!

First, you need to unscrew the lenscap. Next, carefully give it one good shake and be prepared to catch the inner tube. I recomend doing this while standing at the foot of your bed so it lands safely on it.

Step 2: Cheap Parts!!

Slip the batteries out using a pen and remove the circuit board by removing the single phillips-head screw holding it on. Voila, You now have:

1 - Ultra Bright white LED, great for throwies. (approx. $0.99 ea @ RadioShack)
2 - CR2032 batteries, useful for throwies or replacing the battery in your car's remote. ($1.95 ea @ WallMart)
And assorted other parts like a small circuit board and a magnifying lens, etc. that I'll give a cumulative value of $0.50 just to round things out nicely.

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    54 Discussions

    actually it is magnetic. I used it to pick up little screws and other metal crap from under my bed!lol! can you tell i'm an instructable fan when I have screws under my bed!

    5 replies

    I have a welder, soldering iron, LEDs, wire coils, and tic-tac/altoid boxes under my bed...doesn't everyone?

    I don't think there is a magnetic in this flashlight if it uses batteries and the author says it is fake. The real ones use a magnet, coil and cap. to store the energy. This one appears to be battery powered cheap $1.00 version.

     actually, the thing in the middle is a half-supermagnet. stronger than the average magnet, weaker than a supermagnet. how do i know? i have this exact model of flashlight. theres also a resistor in there if you get lucky
     

    1 reply

    oh, and the screws? prob made of chromium or some other metal that isnt magnetic. supermagnet+magnetized screws=shattered magnet and/or screws

    some of the shake flashlights are fake but not all of them

    Hey there,

    the piece in the middle has to be magnetic ... otherwise it wouldnt be able to induce a current in the coil from changing emf. Also you forgot to mention the large amount of magnet wire you get from this too!

    you can also save the magnet wire. pretty useful too

    "View all steps on one page" is working...

    Having been fooled by this one, and done some internet research ( whilst having no real knowledge of electronics ), is it possible to simply replace the CR2032 batteries with LIR2032 rechargeable ones? I have what I would call a semi fake in that the 'slug' is strongly magnetic and the coil is attached. Without the batteries the torch works ( really dimly ) and you can see the light pulsing when you shake it. However shaking it for a long time does not really improve the brightness. Would it require more components added to the circuit if I swapped the CR2032 for the rechargeable LIR2032s??? Hope someone can help.

    I'm not sure about the LIR2032 ones, but I have replaced the batteries with a capacitor on my working one. It does pretty well. Thirty seconds of shaking yields 2-3 minutes of light.

    Thanks Hoopajoo! Can you tell me which capacitor you used, and how easy it was to fit? I have done little electronics I am afraid, but am keen to make my semi fake light a real one if possible. Thanks, boznia

    Pretty much any large capacity 5 to 6 volt capacitor will do. Just be careful that it is completely discharged before wiring it up and that you are getting it from a reputable vendor, there are some fakes out there that can be dangerous if overloaded.

    Picture of fake capacitor that didn't get attached to my last post for some reason.

    PT0153.jpg