I have the lg g watch and been charging it with my phone's 1.5A charger and my tablet's 2A charger without really noticing it much cause i just plug in the micro usb into the cradle. The watch charger have rating of 0.85A and now I'm wondering if I've charged it with too much amps from other chargers. All my charger chargers output 5v. Hopefully it doesn't ruin my battery.