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The following is the introduction of aging resistance
USB load tester switch 1A/2A switch
Because the resistance error is 5%, friends who have high requirements for accuracy are advised to bypass it.



2. Considering the particularity of the winding resistance, after the initial use of the electricity for a period of time, there will be a little white smoke and odor, because the outer paint also contains a very small amount of water, the electricity is heated at a high temperature and the water evaporates to form white smoke. The lacquer is odored by high-temperature baking and disappears completely after a period of use. This phenomenon will inevitably occur. It is normal and you do not need to worry about the load tester being damaged. Please use it with confidence.
3. With the USB voltage and current detector sold by our shop to test, it is more intuitive, and you can see the voltage and current conditions during the test.

The role of aging resistors, one, can quickly help mobile power discharge test capacity, two, can test the charger mobile power supply voltage and current up to standard