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If your Anker Power Bank (10000mAh, 20W, 3-Port) is not lighting up all four indicator lights after being charged all day, here are the steps you can try for troubleshooting: Reset the Power Bank: Plug both ends of a cable into the input and output ports of the power bank simultaneously. Hold them together for 3-5 seconds to reset the device. Recharge and Discharge Again: Try fully charging the power bank again and then discharging it by using it to fully charge another device. Try a Different Wall Charger and Cable: The issue could be related to the wall charger or charging cable. Use another compatible charger and cable to see if it solves the problem. If the issue persists after trying these steps, there may be a potential defect or limitation with your specific device. You might then consider testing the power bank with other devices or configurations to further isolate the issue.
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