The power adapter and the charger have some overlap in function, but there are still some differences between them:

Definition and use:

Power adapter: Usually refers to the device that converts the main power supply (such as alternating current) to a specific voltage and current for use by electronic devices. It is mainly used to convert alternating current (AC) to direct current (DC) and provide stable voltage and current to ensure the normal operation of the equipment.

Charger: Specifically refers to the device that charges the battery, which can be a kind of power adapter, but is more focused on providing the required voltage and current for the battery to achieve the charging function.

Output voltage and current:

Power adapters typically provide stable voltages and currents for direct use by electronic devices, and output voltages and currents may vary from device to device.

The charger provides different voltages and currents according to the type and capacity of the battery to ensure that the battery is charged and avoid overcharging or undercharging.

Connection mode:

The power adapter is usually connected directly to the power outlet through the power cord, and the other end is connected to the electronic device through the adapter's interface.

In addition to directly connecting to the power socket, the charger can also be connected to the computer or other power devices through the USB interface.

Protection function:

The power adapter may contain protective features such as overvoltage, overcurrent, and overheating to protect connected electronic devices.

In addition to these protection functions, the charger may also contain battery protection functions, such as short circuit protection, battery temperature protection, etc.

Scope of application:

The power adapter has a wider range of applications and can provide power for various electronic devices, such as laptops, routers, surveillance cameras and so on.

Chargers are mainly for devices that require battery charging, such as mobile phones, tablets, electric toothbrushes, etc.

Portability:

Some power adapters are designed to be small and easy to carry, but there are also some large devices that require larger adapters.

Chargers are often designed to be more portable, especially for mobile devices.