Homemade water powered flashlight

 

Water flashlighte — for their tourists. Moreover — It is unlikely that there was a flashlight.

 

Do you need to get rid of it? What could be more convenient than recharging the battery with tap water?

 

Water flashlighte — for their tourists. Moreover — It is unlikely that there was a flashlight.

 

Do you need to get rid of it? What could be more convenient than recharging the battery with tap water?

Homemade flashlight It is a time of 2 hours.

So how does this work? A water battery consists of 2 plates (copper and zinc), and a water electrolyte. It is a small step-up voltage converter.

Required materials for assembly:

  • PVC pipe length 10 cm (3/4 inch)
  • PVC adapter with 3/4 inch per inch
  • Small ferrite bead but but — ferrite ring (can be taken from the non-working housekeeper)
  • 2N3904 Transistor (NPN)
  • 1K resistor
  • Reflector with LEDs (from the old lantern)
  • Copper and Zinc Electrodes
  • Copper single core wire in varnish insulation
  • 4 sheets of toilet paper
  • A piece of transparent plastic

Tools and equipment:

  • Soldering iron
  • Glue gun
  • Super glue

Power supply homemade flashlight. It consists of two metal bands, copper and zinc. Copper plate — This is the anode (plus), and zinc — cathode (minus power).

First of all, there is a wrap around the copper electrode. When it gets wet.

It can be used for a long time. superglue.

A booster converter is a circuit 1, which is the low voltage. (Scheme 1 is presented below. For those who are poorly versed in electronics, there is a simplified diagram 2). Having been soldered to the PVC adapter.

On the back of a piece of PVC pipe — It will serve as a water level indicator. Fill in homemade flashlight water and he is ready to go.

First of all, there is a wrap around the copper electrode. When it gets wet.

It can be used for a long time. superglue.

A booster converter is a circuit 1, which is the low voltage. (Scheme 1 is presented below. For those who are poorly versed in electronics, there is a simplified diagram 2). Having been soldered to the PVC adapter.

On the back of a piece of PVC pipe — It will serve as a water level indicator. Fill in homemade flashlight water and he is ready to go.

The flashlight will shine for 2 hours. But it works best on vinegar, because there is acetic acid — The flashlight can be shine 5-10 hours. And if you add to homemade flashlight It will be threefold!

Tap water 0.5 V — 0.9 V 400 mAh
Sea water 0.7 V — 1 V 600 mAh
Vinegar 0.9 V — 1.3 V 850 mAh

Editor’s note:
Well what can we say. Flashlight is shining. But weak and not for long. It is a rechargeable manual dynamo machine. BUT homemade flashlight, water worker — so, show off. But the information is still useful. — you never know what will happen. It is a soldering station, a copper, a zinc, a ferrite ring and a copper ring.

Homemade water powered flashlight

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