msm0511
Trusted Member
I charged my galaxy watch once just to try it. Watch was at about 40%. It took my phone down from 72% to 45%. I really didn't expect that much of a drop in the phone battery. It did seem to charge just as fast as the factory watch charger though. This was with a non plus note 10.
I've thought about battery impact as well. Like on the commercials they show a person graciously charging up someone's phone that is about to die. If it kills my battery charging theirs I'm not sure I'd be so nice. LOL