To charge an A20 wireless headset, first identify your model, then connect the included USB cable to a powered USB-A source and your headset. The correct charging method depends on whether you have the Gen 2 (USB-C) or Gen 1 (Micro-USB) model, and using the wrong cable or port can prevent charging.
Which A20 wireless headset model do you have?
Distinguishing between the two generations is essential because they use different charging ports and cables. The Gen 1 A20 Wireless headset has a Micro-USB charging port, while the Gen 2 model uses a USB-C port. Check the port on your headset before proceeding, using the wrong cable will not charge the battery.
How to charge your A20 wireless headset (Gen 2)
- Check the battery level first: The headset's LED indicator shows the current charge.
- Connect the charging cable: Plug the USB-C end of the included cable into the headset’s USB-C port.
- Plug into a power source: Insert the USB-A end into a powered USB-A port on your console, PC, or a wall adapter.
- Charge until full: Allow at least 3 hours for a full charge. The LED indicator will change to show when the battery is fully charged.
How to charge your A20 wireless headset (Gen 1)
- Locate the transmitter: The Gen 1 model charges through its wireless transmitter, not directly from a wall adapter or console.
- Connect the Micro-USB cable: Plug the Micro-USB end of the 0.5 m USB charge cable into the headset’s charging port.
- Connect to the transmitter: Plug the USB end of the cable into the transmitter’s port marked “Charge Port.”
- Charge until full: The headset will charge while connected to the powered transmitter. The LED indicator will show when charging is complete.
Important charging rules for your A20 headset
The Gen 2 model must not be charged with USB-C to USB-C cables or USB-C ports; always use a USB-A power source. Fully charge the headset before first use to ensure optimal battery performance. A full charge provides approximately 15 hours of battery life. For the Gen 1 model, always charge through the transmitter’s dedicated charge port, do not attempt to charge it via a computer or wall adapter directly.
How to know when your A20 headset is fully charged
The LED indicator on the headset provides the charging status. During charging, the LED will display a specific color (typically red or amber, depending on the model). When the battery is fully charged, the LED changes to a solid green or turns off, based on the documented behavior for each generation. For Gen 2, the LED will show a steady green light once charging is complete. For Gen 1, the LED on the headset will turn off when the battery is full.
Frequently Asked Questions
Can I charge my A20 Gen 2 headset with a phone charger?
Yes, as long as the phone charger provides a USB-A port and uses a USB-A to USB-C cable. Avoid using USB-C to USB-C chargers or cables, as the headset is designed only for USB-A power sources.
How long does the battery last after a full charge?
A full charge provides approximately 15 hours of battery life for both Gen 1 and Gen 2 models, depending on usage volume and features.
What should I do if my A20 headset won't charge?
Ensure you are using the correct cable for your model (USB-C for Gen 2, Micro-USB for Gen 1) and that the power source is a powered USB-A port. For Gen 2, verify you are not using a USB-C to USB-C cable. For Gen 1, confirm the cable is connected to the transmitter’s charge port, not a computer or wall adapter directly.
Can I use my A20 headset while it is charging?
Yes, you can use the headset while it is charging, but doing so may extend the time needed to reach a full charge. For best results, let it charge undisturbed until the LED shows a full battery.
Does the A20 headset support fast charging?
No. The headset is designed for standard USB-A charging only. Using a fast charger or USB-C to USB-C cable may not charge the headset or could damage the battery.
How do I check the battery level on my A20 headset?
The headset’s LED indicator is the only documented way to check battery level. There is no on-screen battery menu, companion app, or smartphone battery page for this headset. The LED will show a specific color or pattern to indicate low, charging, or full status.
For the wider topic, see charging wireless earbuds and headphones.












