Anker PowerCore 20100 - Black - PowerCore

Press the power button; the LED indicators will light up to show the remaining power. Each LED represents approximately 25% of the charge.

It uses a Micro USB cable for input. For charging your devices, you'll use your device's charging cable (e.g., Lightning cable for iPhone, or USB-C).

It takes approximately 10 hours with a 2A charger. Using a 1A charger will take around 20 hours.

Yes, it has two USB-A output ports that allow you to charge two devices at the same time.

No, it does not support Qualcomm Quick Charge, but it features Anker's PowerIQ and VoltageBoost technology for high-speed charging.

The Anker PowerCore 20100 comes with an 18-month warranty.

Immediately disconnect the device from any power source and allow it to dry completely before attempting to use it. If the device was submerged, contact customer support.

Check the power button. Make sure the PowerCore is charged. Ensure the charging cable is properly connected to both the PowerCore and your device. Try using a different charging cable.

Ensure the device being charged is compatible with PowerIQ and VoltageBoost. Check the charging cable; use the cable that came with your device or a high-quality USB cable. Try charging a single device to see if performance improves.

Try a different USB power adapter and Micro USB cable to charge the PowerCore itself. Make sure the power adapter is functioning correctly.

This could indicate a problem. Try charging the PowerCore and check if the LEDs start working. If the issue persists, contact Anker customer support.