The other day a neighbor comes to us and brings with him a nice portable flashlight.
The lantern worked for six months, six months lay idle, now it is needed, but it does not work. The lantern was used in the basement; a light bulb is just above the door, and on the far shelves with jam - gloomy pickle. The lantern in the basement and lived, hung on a jamb under a switch and a power outlet. The basement is dry, the husband wanted to make a carrying with a light bulb, and a lantern appeared - there was no need for it. While the women fussed among themselves, I took up the lantern. The lantern was made by the Chinese, there is a helium acid battery,
halogen incandescent lamp,
Battery Charger
assembled in a primitive way.
He made the necessary measurements of the battery with a multimeter:
Voltage and current are at zero, resistance is infinity. There is no point in messing around with such a battery, I had the opportunity to resuscitate with such a battery, but if I died, I died. It was decided to make a simple flashlight with an LED, powered by 220 volts.
A neighbor brought a power cord about five meters with a plug on one end.
I found a 12 volt LED bulb,
there was also a working board from the necessary charger,
installed only the Zener diode D815D instead of the indicator LED,
Yes, the power cord was soldered to the solder board.
I plugged the plug into the net and the gentle light of a lantern illuminated the room.
Delov was only a ruble and a half, and received a three-liter jar of pickled vegetable assortment as a presentation from a neighbor.
