Review on Charger Vympel 57 black by Janis Gailitis ᠌

Implementation of the apparatus, unreliability. Few details: Bad wires, no on/off button, ie. according to the instructions, you need to distort the plug in the socket when setting the parameters. Display of current parameters: the display should show the current current and voltage, additional parameters such as how much the load consumed Ah - by the additional key, because you either need to wait a long time until the device itself shows these parameters, or they pop up at an unnecessary moment. Well, and reliability: in terms of parameters, I needed the Vympel-55 model more, but legends are already composing about its unreliability. I thought the 57th model, in view of its simplicity, will work like a clock. An no. A couple of months later, such a glitch appeared: I set the required voltage, as soon as the display of the settings mode ends, the device starts to output the maximum voltage. Dismantled. The variable adjustment resistor is not to blame, if you slightly press down on the additional payment with resistors, it starts to work as expected. As a result, I had to unsolder everything, solder both boards and solder the additional one back. It works now. But it is not a fact that at an unexpected moment the maximum voltage will not be applied to the output.