Shake-em-up flashlight generator

[Formula1]

I don't want to repeat this thread...

But I haven't nor has anyone else... I don't think...

ANd I think it has potential......

[nightlife]

Formula1, I did get it to some what work but it did not work as I hoped it would. I need to build different coils to accommodate the action. The coils I used were those that were part of the flashlight and they are spread apart to far.
I got off in to something else and I haven't had time to get back to it. This project I am working on now is the real deal and I cant wait to get in finished. It's a pulse motor unlike any other I can find. I was going to post my findings but I am not ready yet.

[Formula1]

I wish you luck...
If you mak this happen...
It could bring an end to a lot of problems.............

[Koen1]

... yeah, looks like half the companies selling "shakable flashlights"
are not actually selling the version with a magnet in it,
but rather a version where smart use of an inductor coil and shaking action
can extend the battery life significantly.
I recently bought a real magnetic inductor shakeable torch at www.magictorch.nl
which is just a typical "Faraday flashlight" like www.everlifeflashlight.com also
sells them.
A friend of mine claimed he had a much better one that was cheaper too;
but something didn't feel right when I shook that one, and when I pulled out
my neodymium magnet it didn't "feel" any magnetic field in my friends torch...
... so we opened it up, and indeed it did not contain any magnet at all, it
contained something that seems to be an iron rod inside a coil, and two
small lithium batteries. Haha, the joke's on him.

Here's a piece of text ripped from www.skinz.org/shake-flashlights/shake-flash-lights.html
which describes the two different types of shakeable torches quite adequately:

(Type 1) Non-Rechargeable Shake Lights w/Lithium Batteries and LED Bulbs
The Type 1 Shake Lights are actually not rechargeable and run on two lithium batteries.  If you know about lithium batteries, they last for years and are used on such items as lawn sprinklers, smoke alarms and cameras to ensure years of backup power.  But the truth is the shake and rechargeable part of it is false and does not work.  But these are still a great value.  Why? 

Think about a typical flashlight that takes batteries.  Most good flashlights take 4 D-size batteries which have an average price of $8.  If you put these new batteries in a flashlight and turned it on how long would the power last?  2 Hours?  Maybe 3 Hours?  And you are out $8 plus the cost of the flashlight.

Why does this matter?  We conducted a series of tests to determine the average 'light-life" of these lights by leaving them on until they went out.  Each light tested lasted a minimum of 30 hours before they got dim and some even over 40 hours of continuous use!

(Type 2) "As Seen On TV" Rechargeable Shake Lights

Almost impossible to find anymore.

Type 2 shake lights look very similar to Type 1.  These are from the famous "Seen on TV" ads and are not really being sold much today.  These do have magnets and recharging ability, But as you use them the working ability diminishes into nothing and you are left with a inferior product in our opinion.  Every rechargeable cell wears out after repeated use.  So at some point they will not work.  Also, magnets lose their magnetic ability when they are moved around, and rechargeable powered devices lose power when not used.  How many times did you charge something, and if not used in a long time the battery is dead?  Same story here.

Do you want to grab your flashlight and have to shake it for 30 seconds before use?  Imagine you hear a noise in the house.... do you want to make noise shaking a flashlight?  NO!  In a tight spot fixing something?  How can you shake this light?  Seems impractical.

I underlined those two parts to indicate what I believe is a nonsense argument against these true Faraday torches;
That true permanent magnets demagnetise as they are moved around is not per definition true, it is only true for
magnets with internal conductivity and typically untrue for ferrite or other 'ceramic' magnets. Yes, obviously time
decay will effect a magnet like it does any phyical material and over the course of hundreds of years even permanent
magnets will lose magnetism, but certainly not fast enough for your shakeable torch to become useless during your lifetime.
And that rechargeable batteries lose charge over time when they aren't used is true... but the same goes for those non-
rechargeable Lithium batteries they use in the other type... So that is a non-argument.
The last paragraph is complete bull. Do I want to grab a flashlight and shake it for 30 sec before use?
If I never have to buy new batteries for the thing? And as an alternative to rummaging around the house looking for full
batteries or a battery charger which would need an additional 30 minutes to charge my empty batteries? Hell Yeah!
Imagine I hear a noise in the house, do I want to make noise shaking a flashlight? No of course I don't, I'll grab
the baseball bat and switch on the full illumination of my indoor lighting, of course! Or do they believe you can scare
the noisemaker away by sneaking up on him with a flashlight? What crock. In a tight spot fixing something?
Also not the typical situation for using a flashlight, is it? Bad arguments in order to try convince you to buy a product
that is not by far as cool as the original.

[Paul-R]

I bought a couple of these torches cheaply at a car boot sale. They were fitted
with 2032 batteries which do not recharge at all. What sort of capacitor
circuit should I use instead?
Paul.