Tip #1 How to read the Charger Test results?
On qualMeter X, the concept of testing your charger is different with the Basic version. It directly tells you the output current by the combination of the LEDs.
The six vertical LED lights divided the main testing functions to two areas. The left side is for Cable Testing. The right side is for Charger Testing. For the Charger Testing, the upper 4 LEDs indicates 100mA to 400mA for the smaller current scale. You just need simply add the readings from the orange lights (1/1.5/2/2.5/3A) with those 4 lights.
For example, if you get both 300mA and 2.5A light up that means the output capability of your charger is 2.8A. Simple, right?
Tip #2 What does the Output Compensation light mean?
Theoretically, follow the Ohm Law, the higher the current the higher the voltage drop on the two ends of same conductor which in our case is the cable. The voltage drop will cause more dissipated power which makes the conductor warmer.
Output Compensation is a way the charger will automatically adjusts to a slightly higher voltage to compensate part of the dissipated power (voltage drop) which corresponds to the raising of the output current.
Normally, a charger with output compensation would have better charging quality.