Normally, the earbuds can play around 6 hours with ANC on and 10 hours without ANC with 50% volume but the playing time may vary slightly based on the music content. If you use the earbuds to make/receive a call, the time will be shorter as the mic feature consumes more power than only used to play the music.

The battery time is as below for your reference:

ANC Off: 10 hours on a single charge; 45 hours with the charging case.

ANC On: 6 hours on a single charge; 25 hours with the charging case.

Call Mode with ANC On: 4 hours on a single charge; 17 hours with the charging case.

Note: Battery playtime is obtained from testing in the Anker laboratory using the earbuds' default settings, in normal mode, and at 50% volume. The actual playtime may vary by volume, audio source, environmental interference, usage, etc. 

To fix this issue, please try the following:

1. Use a dry cloth/cotton swab with rubbing alcohol to clean the charging pins in the charging case and on the earbuds to ensure a better connection. Ensure the ear tips are not blocking the charging connectors and fully charge your earbuds.

2. Turn off the dual connections and 3D surround sound.

3. Test the battery when only playing music.

ANC is turned on by default. If you want to test the playtime in Normal mode, switch to Normal mode first.

If you have any more issues or your issue has not been resolved, please contact us for further assistance.