Notebook power supply, typical use Q&A

1. Can adapters with the same voltage and different current be used on the same laptop?
When the notebook is running at a high load, the incoming current is correspondingly larger, and when the notebook is lightly loaded or in standby, the current is smaller. The Power Supply with large nominal current has enough current margin. Some people use 45W It is no problem to use the power supply instead of 60W. The reason is that there is some margin in the design of the adapter, and the load power is less than the power of the power supply. Therefore, this kind of representative is feasible in general use. If you connect a lot of high power consumption Equipment, then it is more dangerous, so do not use a small current adapter instead of a large current adapter.

2. Is it normal for sparks to appear on the power adapter plug?
If you connect the adapter to the laptop first and then connect the adapter, it is normal to cause sparks during contact at this time. You can avoid it by following the steps below:
(1) Turn off the switch of the power socket first.
(2) Connect the notebook power adapter to the power socket, and then turn on the socket switch.
(3) Connect the DC plug end of the power adapter to the notebook.

3. Is the temperature of the Laptop Adapter normal?
Normally, all laptop chargers, including mobile phone chargers, will emit warmth, because part of the electrical energy is converted into heat and the power supply will heat up. If it becomes hot, it is a low-quality charger.

Best regards,

Mandy Huang.