Gear S3 charging question

[Thomas - FusionGFX]

Dear community, 

 

I wanted to charge my Gear S3 with a different wallplug. It has a higher power output than de OEM one. 

 

When I put the watch on the charger it went from 0 to 30% within a couple of seconds. 

 

I booted the watch and it really displayed that percentage but it dropped quickly within a couple of minutes to like 10-15%. When rebooting again, it shut down instantly (assuming because the battery was empty) - like it should because of the short charging time. 

 

Is it bad for the watch to charge it with a different plug? Or is there some kind of power output reduction going on in the wirless charing device itself going on? 

 

And can someone explain what's up with that insanely quick percentage increase? 

 

Best regards, 

Thomas

[Thomas - FusionGFX]

Edit: The Samsung OEM plug delivers 5V at 0.7 A and the one I used delivers 5V at somewhere between 1.5 and 3A. (That's an Anker brick with PowerIQ) 

[MrFixitBlankFace]

Not really recommended by Samsung.

you’ll probably see that inThe manual