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
