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In this video I tell you how you can assemble a simple circuit to protect your battery from overdischarge and deep discharge with your own hands. The circuit is assembled on two transistors, one of which is a field-effect transistor with an insulated gate (MOSFET), and the second is a bipolar transistor of pnp conductivity. This device for protection against low supply voltage is fully functional, and in the video I clearly demonstrate its operation. I also describe the principle of operation of this circuit and talk about the existing nuances of this device. Link to the ElectroHobby channel on Yandex Zen - https://zen.yandex.ru/electrohobby Link to the VKontakte group - https://vk.com/electrohobbyru Link to the ElectroHobby website » https://electrohobby.ru