How to make a battery-free camping flashlight from a plastic bottle

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No one dares to go camping without a good, reliable flashlight. Such devices can have a robust housing and good leds, but in any case, they depend on the power source. And if the batteries run out, the flashlight turns into a useless load, and you remain in the darkness or in a dark cave. But this will definitely not happen to you if you know how to make a perpetual flashlight that will not let you down, because it does not depend on a battery or a battery. And the author-experimenter of the YouTube channel will help us with this. AmazingINVENTIONS.

Read in the article

  • 1 What will replace the battery or back to basics
  • 2 What is required to make a flashlight with a mechanical power source
  • 3 Warming, bending and winding - the secret of assembling a flashlight
  • 4 Phosphor: a simple way to create a flashlight

What will replace the battery or back to basics

If you are not a real survivalist, then a lot will be a real discovery for you. For example, that a real tourist can survive with one pack of matches and a piece of polyethylene and at the same time walk about 40 km along the route without much risk. But while you are far from such feats, it makes sense to learn simple things that will really help you cope with adverse circumstances.

There are simple travel tricks that can help you overcome your circumstances. For example: a polyethylene cover on a backpack will save your belongings from getting wet in the rain, or a couple of tablets of dry fuel will allow you to start a fire in two minutes. So it is with power supplies: well, our parents and grandfathers did not have capacious batteries, but this did not stop them from building a BAM. And the secret lies in the simple laws of physics and mechanics, and even a little - chemistry.

What is required to make a flashlight with a mechanical power source

The author of this master class took as a basis regular plastic bottle from kefir.

Eternal flashlight from a plastic bottle
PHOTO: YouTube.com
Transparent bottle or not - it doesn't matter. The main thing is that the plastic is durable
The second secret " ingredient" of this recipe is a case from an ordinary plastic pen. So something, but there is always a lot of this good to be thrown away
PHOTO: YouTube.com
The second secret "ingredient" of this recipe is a case from an ordinary plastic pen. So something, but there is always a lot of this good to be thrown away

And the last part of this device is a small electric motor that you can extract from almost any electrical appliance.

Warming, bending and winding - the secret of assembling a flashlight

The main thing in a bottle is a wide neck. It is for this reason that you need to choose a bottle of kefir for a flashlight - they have the largest lid diameter.

The handle case becomes elastic under the influence of hot air. This will help to make the desired detail out of it.PHOTO: YouTube.com
The handle case becomes elastic under the influence of hot air. This will help to make the desired detail out of it.
The plastic must be bent in two places at 90 degrees, as shown in the photo. After cooling, the tube becomes hard again.PHOTO: YouTube.com
The plastic must be bent in two places at 90 degrees, as shown in the photo. After cooling, the tube becomes hard again.

A bit of a strange detail actually has a very trivial purpose - it's a handle for a motor, a simple plastic starter.

To light a small LED light bulb, you need the energy of an electric motor, this can be borrowed, for example, from a blender or an old vacuum cleaner.PHOTO: YouTube.com
To light a small LED light bulb, you need the energy of an electric motor, this can be borrowed, for example, from a blender or an old vacuum cleaner.
Connect the contacts of the motor and lamp and protect the connection points with electrical tapePHOTO: YouTube.com
Connect the contacts of the motor and lamp and protect the connection points with electrical tape
The lamp must be placed in a bottle, and the motor must be fixed on the neck using the same electrical tape.PHOTO: YouTube.com
The lamp must be placed in a bottle, and the motor must be fixed on the neck using the same electrical tape.
It remains only to insert the starter and start the mechanism. By rotating the knob, you will make the engine generate enough energy to start the lamp.PHOTO: YouTube.com
It remains only to insert the starter and start the mechanism. By rotating the knob, you will make the engine generate enough energy to start the lamp.
The flashlight will glow while you rotate the knob. It depends only on this mechanical drive and your desire, and not on the battery.PHOTO: YouTube.com
The flashlight will glow while you rotate the knob. It depends only on this mechanical drive and your desire, and not on the battery.

You now have in your hands an almost eternal flashlight that feeds on your energy. With such a device it is not scary to get lost in a forest or in a cave, it will not let you down.

Phosphor: a simple way to create a flashlight

And there is also a simpler and no less effective version of a camping flashlight without batteries. And you only need a phosphor powder and a bottle for it.

You can buy such a composition in the Chinese online mega-market literally for a penny. And then - everything is very simple: a small amount of dry powder must be carefully poured into a dry plastic "poltorashka" and closed with a stopper.

Now, if you need light, you just need to shake the bottle and you will get a greenish glow that will dispel the darkness.

Learn more about this effect in this small video:

How do you solve the problem with lighting in extreme conditions? How do you replace lighting when there is no electricity in the country? Share your experience in the comments!

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