A:Answer For your Anker Power Bank (20K, 87W, Built-In USB-C Cable), you can tell it's fully charged by looking at its LED power indicators.
Here's how it works:
While Charging: The four white LED lights will pulse (blink in sequence) to show that charging is in progress.
When Fully Charged: All four white LED lights will become solid and stop blinking. They will remain steadily lit.
A few extra tips:
Location: The LED indicator button is usually on the side or face of the power bank.
Charging Time: With a compatible 45W+ USB-C charger (like the one that comes with many laptops), it can take roughly 2.5 to 3.5 hours to charge from empty to full. Using a lower-wattage charger will take longer.
What to Use: For the fastest charging, use the built-in USB-C cable plugged into a powerful wall charger (e.g., a 45W, 65W, or 100W PD charger).
In short: When all four lights are solidly on (not blinking), your power bank is 100% charged and ready to go.
