Both the zumo XT2 and the Tread 2 charge very well with “standard” USB C connections.
The power supply should deliver 5 volts and 2 amps and must also recognize that the device requires 5 volts and 2 amps, that's it, no more and no less.
For this reason, the zumo XT2 will most likely have no problem with chargers that can deliver higher power outputs, such as 60 watts or 80 watts. It is more likely that the charger will not do what it is supposed to do, although this is “rather rare.”
However, I could well imagine that the OnePlus 80W charger is designed more for OnePlus
In any case, almost every power supply works for me.
PC, notebook, power banks, power supplies from 15 to 65 watts tested. All of them supply the zumo XT2 perfectly, never problems at all!
The cable may still be problematic also.
It must be reliably designed for at least 10 watts and also support at least the 5 volts and 2 amps requested by the zumo XT2.
But here, too, my “standard” USB C cables can all do that.
A tip for everyone who can't part with anything: finally sort out your cables and chargers.
Two or three decent cables and two or three decent chargers or power banks, and you'll probably have fewer worries than before.
Also for PCs, use good, usable USB C connections (both output and cable).
Here is a tip from another forum:
."... With PCs, a USB C hub can sometimes work wonders ...
Last but not least, regarding updates via Wi-Fi or Garmin Express.
I have also had better experiences with Garmin Express.
However, there were one or two situations where the update via Wi-Fi worked better directly on the device, but unfortunately I have forgotten when that happened.
PS
If you have problems with the 256 GB micro SD, note the differences in formatting between Fat32 vs exFAT vs NTFS vs ... and that (older) Windows versions, among others, do not format more than 32 GB for the appropriate format, at least not with their own on-board tools (but if they do, it's not a big challenge in the end).



