You can use the dedicated USB ports for other purposes. We included three different dedicated ports in the Base, so your device will always communicate well with the battery pack. All three USB ports send the same amount of energy (2.1A) to the device that is being charged, so you can charge any low-voltage device as long as it matches the mAh of the battery. We have a dedicated USB port for Apple products because they have a special software system. We also have a dedicated port for the LED-light so that you can control it from the battery pack. Long story short, as with everything in life, it’s all about the communication.