Charging Amps - definition
Charging Amps denotes the current supply coming from a travel adapter or a charging device. All the charging adapters don’t supply an equal amount of current. The most common rating of a travel adapter for most smartphones is 5W. The formula of power is P(Power) = V(Voltage) x I(Current). So, in this case, the voltage is 5V (fixed), so it can be seen the adapter can supply 1A or 1 Ampere of current. Now, why does it matter?
Nowadays, 5W is considered as one of the most slowly charging ratings available for the advanced smartphone. Because batteries are getting bigger and bigger, not in size but capacity, in order to charge the high capacity battery the adapter should supply more power in a short time and the device should also handle that amount of power at the same time. To resolve that issue few more features have been introduced by the phone manufacturers which are Quick Charge, Fast Charge, Adaptive supercharging, and a few others. In these features, the supply becomes higher than the general such as the most commonly used quick or supercharging adapter can supply up to accordingly 18W, 36W, 48W, 60W, and even 100W or more. How do they do it? Simply, by increasing the supply voltage and current ratio. Now for example to supply a 36W power to the output of an adapter it should supply 12V-3A, which is so much power. Also, other parameters are considered along with the high rating such as whether the device can handle or the wire/cable which is being used, will it be able to handle that amount of current or not.
Nowadays, 5W is considered as one of the most slowly charging ratings available for the advanced smartphone. Because batteries are getting bigger and bigger, not in size but capacity, in order to charge the high capacity battery the adapter should supply more power in a short time and the device should also handle that amount of power at the same time. To resolve that issue few more features have been introduced by the phone manufacturers which are Quick Charge, Fast Charge, Adaptive supercharging, and a few others. In these features, the supply becomes higher than the general such as the most commonly used quick or supercharging adapter can supply up to accordingly 18W, 36W, 48W, 60W, and even 100W or more. How do they do it? Simply, by increasing the supply voltage and current ratio. Now for example to supply a 36W power to the output of an adapter it should supply 12V-3A, which is so much power. Also, other parameters are considered along with the high rating such as whether the device can handle or the wire/cable which is being used, will it be able to handle that amount of current or not.
