Originally Posted by
wco81
I think the battery packs have to get some feedback from the device to know when the battery in the device is fully charged, so that it would shut off.
So maybe the Beats X doesn't send that info. back whereas the Marsee headphones, with a much smaller battery pack, does and charges fine.
I have the Anker and love it but given the electronics bans in the Middle East, I have to wonder whether these heavy duty batteries are likely to be next on the list.