Power Bank Not Charging? Here's How to Fix It

Why This Happens

Power bank charging issues usually fall into three categories:

1. Cable or adapter problems (most common)
2. Software/firmware glitches
3. Battery degradation (older units)

Step-by-Step Fix

Step 1: Try a Different Cable

This fixes the problem 60% of the time. USB-C cables especially vary in quality.

Step 2: Try a Different Power Adapter

Make sure your wall adapter outputs enough wattage. A 5W adapter will charge a 20000mAh bank painfully slowly.

Step 3: Clean the Ports

Use a toothpick or compressed air to gently remove lint and debris from the USB-C port.

Step 4: Reset the Power Bank

Many power banks have a reset function — press and hold the power button for 15 seconds.

Step 5: Check the Temperature

Power banks have thermal protection. If it’s too hot or too cold, it won’t charge. Let it cool down to room temperature.

If Nothing Works

If your power bank is over 2 years old and won’t hold a charge, the battery cells may be degraded. Time for a replacement.

Recommended Alternatives

If you need a new power bank, check out our Best Portable Chargers roundup.