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.

An electronics engineer known as "Iron Fuse" has developed a custom "USB and More Tester," offering a wide range of testing ...

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.

With Legion Meter, PLX is bringing that kind of battery know-how to the rest of our chargers. Small, light, and smart, the Legion Meter works with any USB charger in your arsenal, delivering ...

For automotive circuits, we recommend an auto-ranging meter with at least 20MΩ of internal resistance. Make sure to use the correct multimeter setting for a car battery.