Which wire to choose for USB charging?
Hello, help me figure it out. I need to test gadgets at work. Need a USB cord. I want to understand the task of what parameters a wire should have in order to be ideal. Those. Minimum charge loss. What section at what length from what material? Exactly understand the formulas. Maybe someone knows specific brands. Everything in the stores is of poor quality. Operating voltage 5V current 2A
Hello! The simplest option is to take a wire of the ШВВП or PVS 2x0.75 type. On it, losses at such a current will not be strong even with a length of 5 meters, and given that you are so long and will not be needed, all the more so. But there will be a problem of soldering it to the charging connector (micro-usb or type C). You will have to either bite the veins to get thin ends for connection, or make a transition to thinner wires directly near the connector itself, there are “noodles” for sale at 0.35 mm², unfortunately I do not know its brand, this is a flexible copper wire.
https://our.electricianexp.com/en/poteri-napryazheniya.html With this calculator you can calculate cable loss. This link also describes the calculation method. But on sale you can find good USB cords with normal conductors, pay attention to expensive products, everything that costs less than 250 is often of really poor quality.
https://our.electricianexp.com/en/poteri-napryazheniya.html With this calculator you can calculate cable loss. This link also describes the calculation method. But on sale you can find good USB cords with normal conductors, pay attention to expensive products, everything that costs less than 250 is often of really poor quality.
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