Additional Tips Using a Multimeter: If you have a multimeter, you can also use it to check the voltage of a USB port by connecting it to the external pins of the USB-A connector.

For all of you who have a multimeter thrown in a drawer or toolbox but don’t know how to use it, these instructions will help in your search for missing voltage.

How to Check the Power Supply With a Multimeter. The power supply in your computer manages all of the power required to run each component of your computer. When this critical component begins to ...

USB-C power meter could save your devices from dodgy cables and chargers Plus, check the true mAh capacity of your smartphone, laptop, or portable battery.