What is considered a full load for this unit?
Is a full load calculated in watts or volts? If watts, how many watts constitutes a full load, or if calculated in volts, how many volts constitutes a full load?
The load is rated in WATTS.
Use the APC unit for your PC, your monitor and your router and/or modem. When the power goes out, it will not affect your computer, if your external accessories like your desktop speakers, printer, scanner, webcam, etc. suddenly stop working. The purpose for this APC unit is to allow you to properly and quickly SHUT DOWN your computer in the event of a power outage.