Anker explains how PowerIQ adjusts charger output by device
Anker says its PowerIQ chargers detect the connected device and automatically adjust voltage output to match what that device's battery can safely handle. The latest version, PIQ 4.0, is also compatible with Qualcomm Quick Charge and USB Power Delivery 3.0, letting newer PowerIQ chargers fast-charge a wide range of devices rather than being limited to Anker's own standard.