Baseus bowe ma10s blackout

When i came to school (yes, i'm young), theye were at about 50%, both ears being charged fully. The bow could'nt be opened accodentaly. Latet the same day, the percenyage wasn't displayed, no led, no white line on the box, and i couldn't use them

Also, one ear was dead before, volume at max 5% The other one died but revived from nowhere

Last, sometimes, one ear dont connect to the box, letting it on, even with the box closed