The GX 2 Pro shows a full charge through its LED indicator light and the charging port display

The GX 2 Pro signals a complete charge in two ways: the LED light on the device turns solid green (or stops blinking, depending on your model year), and the charging port's small screen displays 100%. Both happen at the same time. If you're using the official charging cable, the process typically takes 90 to 120 minutes from a completely empty battery.

The LED indicator is the quickest visual check. When charging begins, the light blinks amber or red. As the battery fills, it may pulse or change color. Once it turns solid green and stops moving, the device is fully charged and ready to disconnect. Some users miss this because they assume the light will turn off — it doesn't.

The charging port display is more precise if your model has one. This small screen shows the battery percentage in real time. Watch it climb from your current level to 100%. Once it reaches 100% and stays there for a few seconds, the charge cycle is complete.

Key Takeaways

  • A solid green LED light indicates the GX 2 Pro is fully charged; a blinking or colored light means it is still charging.
  • If your model has a charging port display, watch for 100% to appear and hold steady for several seconds.
  • Charging from empty to full typically takes 90 to 120 minutes with the official cable.
  • Leaving the device plugged in after reaching 100% will not damage the battery, but disconnecting once full extends long-term battery health.

What the LED colors mean during charging

The LED light communicates the charging status through color and movement. A blinking red or amber light means the battery is low and actively charging. This is normal and expected when you first plug in the device. The light will continue to pulse or blink as power flows into the battery.

As the charge level rises, the light may shift to a different color — often yellow or orange on some models — to show progress. This intermediate stage typically occurs when the battery reaches 50% to 80%. The light may blink more slowly or pulse in a different pattern than it did at the start.

Once the battery reaches full capacity, the LED turns solid green and stops blinking entirely. This is the definitive signal that charging is complete. If the light remains green and steady for more than a few seconds, you can safely unplug the device without interrupting the charge cycle.

Using the charging port display to confirm 100%

Not all GX 2 Pro models include a charging port display, but those that do show the battery percentage directly on a small screen built into the charging connector. This display updates in real time as the device charges, giving you an exact reading rather than relying on color interpretation.

Watch the percentage climb steadily from your starting point. The rate of increase typically slows as you approach 100% — this is normal and protects the battery from stress. Once the display shows 100%, wait a few seconds to confirm the number holds steady. If it drops back to 99%, the device is still in the final charging phase and will reach 100% within a minute or two.

If your model does not have a charging port display, the LED light alone is sufficient to determine when charging is complete. The display is a convenience feature, not a requirement for knowing when your device is ready to use.

How long a full charge takes

A complete charge on the GX 2 Pro takes between 90 and 120 minutes when using the official charging cable and a standard power outlet. The exact time depends on the current battery level when you start charging and the power output of your charger.

Charging from completely empty (0%) to full (100%) takes the longest — typically the full 120 minutes. If you start from 50%, expect 45 to 60 minutes. The final 10% to 20% of the charge cycle slows down intentionally to protect battery longevity, so the last stretch takes longer than the early stages.

Using a third-party or lower-wattage charger may extend this time. The GX 2 Pro is designed to work with chargers rated at the device's specified wattage; using a lower-power charger will charge more slowly but will not damage the device. Using a significantly higher-wattage charger is not recommended and may trigger safety features that pause charging.

What to do after the device reaches 100%

Once the LED turns solid green or the display shows 100%, you can disconnect the device immediately. The GX 2 Pro will not overcharge if you leave it plugged in longer, but disconnecting once full is the best practice for battery health over time.

Modern lithium batteries, including those in the GX 2 Pro, perform best when they spend less time at 100% charge. If you regularly leave the device plugged in for hours after it reaches full capacity, the battery may lose capacity slightly faster than if you disconnect promptly. For everyday use, this difference is small, but it adds up over months and years.

If you plan to store the GX 2 Pro for an extended period, charge it to 100% first, then disconnect it. Store the device in a cool, dry place. Avoid leaving it plugged in during storage, as this keeps the battery at maximum charge for weeks or months, which can reduce its lifespan.

Troubleshooting: When the LED does not turn green

If the LED continues to blink red or amber after 120 minutes of charging, or if it never changes color, the device may not be charging properly. First, check that the charging cable is fully inserted into both the device and the power outlet. A loose connection is the most common cause of slow or stalled charging.

Inspect the charging port on the device for debris, dust, or lint. Use a dry cotton swab or soft brush to gently clean the inside of the port. Do not use water or liquid cleaners. Reconnect the cable and wait a few minutes to see if the LED responds.

If the LED still does not change after cleaning, try a different power outlet or a different USB power adapter (if your model uses one). Some outlets or adapters deliver inconsistent power. If the device charges normally with a different outlet or adapter, the original one may be faulty.

If none of these steps work and the LED remains red or amber indefinitely, the battery or charging circuit may have a fault. Contact the manufacturer's support team with details about what you have tried, and they can advise on repair or replacement options.

Frequently Asked Questions

Can I use the GX 2 Pro while it is charging?

Yes, you can use the device while it is plugged in. Charging will continue, though it may proceed more slowly if the device is under heavy load. The LED light will remain visible and will still turn solid green when the charge reaches 100%.

Does the GX 2 Pro have fast charging?

The GX 2 Pro charges at a standard rate of 90 to 120 minutes from empty to full. It does not have a dedicated fast-charging mode. Using a higher-wattage charger than specified is not recommended and may not speed up charging due to built-in safety limits.

What if the charging port display shows 100% but the LED is still blinking?

This is unusual but can happen on some models during the final moments of charging. Wait 30 seconds to a minute for the LED to catch up and turn solid green. If the LED continues to blink after the display shows 100% for more than a minute, try disconnecting and reconnecting the cable.

Is it safe to leave the GX 2 Pro plugged in overnight?

It is safe in the sense that the device will not catch fire or suffer immediate damage. However, leaving it plugged in for many hours after reaching 100% can gradually reduce battery capacity over time. For best battery health, disconnect once the LED turns solid green.

Why does the LED blink slowly near the end of charging?

The slow blink near 100% indicates the device is in a trickle-charge phase, where power flows in at a reduced rate to protect the battery. This is normal and intentional. It ensures the final percentage points are added safely without stressing the battery cells.