Can a USB modem be plugged into a charger?

Question

Huawei

There is a HUAWEI EC315 USB modem, it was written on the site that it can work from the charger "from the outlet".
There is a charger with output: 5V
/2.0A
5V/350mA
5V/500mA
Can I use them (mainly 5V/2.0A) or do I need another one?
There is a sticker on the packaging, but in Chinese. Parameter 5B / 1A, but it is not clear that it is only possible, it cannot be lower than this, or higher than this. Apparently, since the computer's USB output is 5V / 500mA (isn't it?), You can use it no higher than the specified value. That is, using 5B / 2.0A is not recommended or strictly prohibited?

Answer 1

Can. The modem will take as much current as it needs. In general, they pass it at school in physics.

Answer 2

You can use a power supply unit with more power, but the voltage requirements increase, where the voltage drops in a weak power supply, more current will flow in a powerful one. And another moment, Chinese friends, can count on some kind of voltage drop.
In normal mode, a more powerful power supply is better, it will be less loaded, and the consumer will take as much as he needs.

Answer 3

Can I use a modem with Wi-Fi. The main thing is the volts and the forces will take as much as necessary