Hi James and Angela Moore,
From what I can find, this device isn't charged with USB-C or equivalent, but rather a standard AC adapter.[br]
This makes it a little more tricky to measure what kind of amperage (current) is drawn when connected, but in no way impossible.[br]
Had it been USB-C it could be done with a simple USB meter, but for this you need something [link|https://www.amazon.com/AstroAI-Multimeter-Auto-ranging-Capacitance-Non-contact/dp/B08MTTX66X/|like this|new_window=true].
That meter you basically "clamp" around the power lead that goes into the device, after setting it to measure amperes.[br]
However, these aren't as detailed as those USB-A / C meters, because of the way they work.
This will tell you what kind of current is being drawn when charging.[br]
There should be more current drawn when charging than when the battery is fully charged and the charger is only providing operating current.