Yeah, this is a f*%#ing annoying “feature” of the 820 that Garmin simply ignore and refuse to sort out.
I HATE the fact that it does this, and simply won’t stay off when I turn it off, regardless…
+1. It worked great on the previous generation unit (800/810). I mean only the power off/on on connecting disconnecting the power cable..
Couldn't agree more, this drives me crazy too!!!
As with most comments here, I completely agree that this is horribly annoying. It has caused me issues while on a bikepacking trip where I would plug in my 820 to charge while I sleep...as the device got to 100% the current draw went low enough that the battery simply shut off the USB port (fine!)...but that obviously turned on the 820, which completely emptied itself.
it's a completely useless feature that has frustrated me very much (above killing the irreplacable battery prematurely). Furthermore, this burns out the screen uselessly too (had many power outages at my place where I'd come back to the garage, a few days later, to see my device was "on" for no good reason).
now, of course, with the device now being frustrating slow and unusable without an external battery, I'm thinking of getting a 1040 solar, but I just saw the following in the manual :
"When you connect the device to a power source, the device turns on."
I DON'T WANT THAT.....!
Is there a way we can get someone a bit more serious to look into their firmware? I don't want to buy a super-high priced device, that has an irreplacable battery, which behaves in a way of eating it up like a rockstar on coke.
Some other features that annoy the *** out of me (to save battery life):
All of the above is a royal PITA to go through the kludgy interface to manually switch on/off all those features each time I go on a different ride.