>>1427718I don’t know why he says it will hurt the battery.
But remember with Li-Ions, charging to 100% and charging fast will make it last longer. So the 2.1A chargers will get your battery level up quick, but over the course of months it won’t hold a charge as well as if you used a 1.0A charger. And charging to 80% instead of 100% would do the same thing.
But most consumer electronics don’t focus on that. They would rather market a fast charge and longer battery life when the device is brand new. Those bricks and any other charger plus the phone will be safe, but it’s not ideal.
