I think the availability of AA batteries is higher, 18650 is much less standard than AA in most people’s homes. I would rather have options, so saying AA but having a swappable battery tray is how I would go, but I like kludgey stuff anyway.
That said, I just did a battery replacement for a lithium pouch on some TWS headphones and it was a fairly simple process. Making it a port rather than soldered wires would make it much easier and would make battery replacement a quick and routine task. Hopefully more companies will more towards ports for batteries and maybe even a standard port that is the same for a given voltage/amperage combination so swapping out can be done with confidence.
No1@aussie.zone 1 hour ago
If you have spares to swap in, then it doesn’t matter how long it takes to charge.
(Which would be 2 hours if you charge at 0.5C)