HT5009 - Power & Charging Related – Avantree Support

Use this guide if your HT5009 headphones won't charge, won't turn on, or seem to lose power too quickly. Start by checking whether the headphones respond when connected to power.

Start Here

Plug in the headphones and check the LED

The charging light is the quickest way to tell whether the headphones are receiving power.

Red light = Charging Light OFF = Fully charged

Check the Charging Connection

If you're not seeing the expected charging light, check each part of the power connection.

Connect the charging cable

Plug the charging cable securely into the headphones.

Make sure the connector is fully inserted. A partially connected cable may prevent the headphones from charging.

Connect to a suitable USB power source

Connect the other end of the cable to a 5V / 0.5–2A USB power source.

5V USB Power Charging Cable Headphones

No charging response? Try a different USB power source before assuming there is a problem with the headphones.

Check the charging LED

Once connected to power, look at the LED on the headphones.

Red LED: charging is in progress.
LED OFF: the battery is fully charged.

Disconnect the cable and turn the headphones on

Once charging is complete, unplug the charging cable and power on the headphones.

If the headphones turn on normally, no further charging troubleshooting is needed.

Charging normally

If the LED turns red while charging and turns off when charging is complete, the headphones are receiving power normally.

Still Having a Power or Charging Problem?

Select what you're experiencing.

No charging light appears

Disconnect and firmly reconnect the charging cable.
Try another USB power source.
Try another compatible charging cable if available.
Leave the headphones connected to power for a while, then check again.

If the headphones may already be fully charged, disconnect the cable and try turning them on.

The headphones charge but won't turn on

Disconnect the charging cable before trying to power on the headphones.

The power method depends on the version of your HT5009 headphones:

Batch T22B1 and later: slide the headphone power switch to ON.
Earlier versions: press and hold the Power / MFB button to turn the headphones on.

The red charging light stays on

Keep the headphones connected to a stable USB power source and allow them enough time to charge.

If the red light remains on much longer than expected, try another compatible charging cable and another USB power source.

The battery drains much faster than expected

Charge the headphones until the red charging light turns off.
Disconnect the charging cable.
Use the headphones normally from a full charge.
Check whether the unusually fast battery drain happens again.

If the problem continues after a full charge, contact Avantree Support below.

The headphones turn on but won't connect

If the headphones power on normally but do not connect to the transmitter, the issue is likely related to the wireless connection rather than charging.

FIX HEADPHONES CONNECTION →

Still need help?

Tell us what happens when you connect the headphones to power, including whether the charging LED turns red, stays off, or behaves differently.

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