Output rating of charger

[SUREJSJ]

I am using :
Galaxy Y,
Galaxy Tab-3,
Galaxy Quatro,
Galaxy J7 Prime

All this device has charger with output of :
5V : 0.5 Amp.
5V : 2.0 Amp.
5V : 1.0 Amp.
5V : 1.55 Amp. respectivly.

My query :
1. Can this ANY charger be used for for ANY device?
2.If not then what will happen if ANY one are used for ANY device?
3.Why samsung is not making charger as universal like USB C connector?
4.What's wrong if unbranded charger of similar rating is used?

I wiil thankful to have technical guidence.

[nathanjdias]

Let me explain. In simple words, if you use any charger with higher amp or voltage rating then your device it is alright and there will be no damage. But if you use any device with lower specifications then your device, the device will still try to draw it's required amps and voltage and damage the charger. Your device doesn't get affected in any of these situations.
With an offbrand charger your device might get affected. The offbrand charger will produce ratings which aren't stable and fluctuate repeatedly and stress your battery which will degrade quickly.

[SUREJSJ]

Thanks.

1. Does it mean I can use 5V : 2 Amp. charger for all devices?
2. And does it works as fast charging for other device having low rate charger?

[admin_]

Thanks for being with Samsung and sharing your concern. We would like to inform you that Samsung never recommend to use any third party accessories with Samsung device. Samsung always recommend use Samsung original accessories with your device. As you have mentioned that all devices have different charging rating as per battery capacity, so Samsung always suggest you charge your device with standard rating chargers.