Edifier W820NB Plus Not Charging

If the charger you are trying to use is not working, the headphones will not be able to charge. Try a completely different cable and power brick. These headphones charge using USB-C.

Though, unlikely, it is possible the power outlet that you are trying to use is not providing power properly. Use a different outlet is another part of your house to attempt charging.

If none of the other solutions are working the battery may be faulty. Age is the main factor that kills batteries. They slowly lose capacity over time until they cannot hold a charge. Replacing the battery is the only solution. Please refer to this guide.

The USB-C port on the headphones themselves may be at fault for not charging. It can be replaced by changing the daughter board inside the headphones that connects to the motherboard. This guide will show you how.