One of my BD&M Wireless Bluetooth Earbuds, Model: BDNM-E7S, Bluetooth Version: 5.0, is not holding a charge as long as the other. I purchased them in December 2023 on Amazon. It now lasts only 1.5 hours and the other close to 4 hours. I have cleaned all contacts and swapped charging ports to no avail. Am I missing something?
It sounds like you've already taken some good troubleshooting steps by cleaning the contacts and swapping charging ports. Since one earbud is significantly underperforming…