I have a question regarding the Tenergy TN385 charger when charging a single cell.

The specifications say:
Output Voltage: 3.65V 500mA x 2
Two independent charging channels

If I want to charge a single cell, will the output amperage be 500mA (because the channels are independent) or will it be 1000mA (500mA x 2)?
If the channels are truly independent, then it would be 500mA. But I've seen some charger combine the amperage when charging a single cell.