Power adapter does not work is one of the common problems of laptop. The role of the adapter is to provide stable constant voltage DC power for the laptop, protect the internal circuit. If it is damaged, you should buy a new adapter to replace in time, otherwise your laptop will not be available because there is no power supply.
Part1:How to Choose the Suitable and Portable Laptop Adapter?
1.Choose the adapter based on the laptop brand what you're using
①Every laptop manufacturer uses different operating voltage, the output voltage and electric current are not uniform. The circuit of the laptop will be burnt out if use the wrong adapter.
②Different laptops require different electric currents, ranging from 2A to 5.4A. Smaller machines require fewer currents while large machines require larger currents.
③It is not universal because today’s interfaces of power adapters are different. Currently, there is no AC adapter that can be used for all laptops.
2.Remember the voltage and output current of your adapter
The most important parameters of the laptop AC adapter are voltage and output current. You can buy a new adapter according to the laptop adapter tips such as previously used adapter’s parameters. The power adapter with large output current can be used under the circumstance of the same brand and voltage.
3.Choose the original laptop adapter
Non-original laptop adapters are cheaper,but of poor quality. The power supply is unstable and fluctuant when using then on-original laptop adapter. It will break down easily and the life is difficult to guarantee.
Part2: Laptop Power Adapter Price
The price of the laptop adapter depends on the location, laptop model, quality and other factors. Generally, the online price is lower than the store. The price of some original adapters for laptop brand and model on the following website is for your reference.
1、Multi-function Adapter
Price：$8
Applicable scope：15-20V 90W Multi-function Adapter, Standard8 DC head,
DELL 19V 5.5*3.0,19V 5.5*2.5, DE19.5V4.5*3.0,19V 5.5*1.7,19.5V 6.0*4.4,20V Square mouth,20V 7.9*5.5,
HP 19V 7.4*5.0 Laptop Adapter 19V 5.5*3.0，19V 5.5*2.5，DE19.5V 4.5*3.0，19V 5.5*1.7，19.5V 6.0*4.4，20V SQUARE MOUTH，20V 7.9*5.5，HP 19V 7.4*5.0
2、Laptop adapter for Toshiba
Price: $3
Applicable scope: TOSHIBA 19V 4.74AΦ5.5*2.5mm 90W Laptop Adapter 19V 4.74A Φ5.5*2.5MM
3、Lenovo laptop adapter
Price：$6
Applicable scope：LENOVO 20V 4.5A 90W USB (With Aluminum Alloy Heatsink) Laptop Adapter 20V 4.5A USB
4、ASUS laptop adapter
Price：$4.8
Applicable scope：ASUS 19V 4.74A Φ5.5*2.5mm 90W (With Aluminum Alloy Heatsink ) Laptop Adapter 19V 4.74A Φ5.5*2.5MM
5、HP laptop adapter
Price：$5
Applicable scope：HP 19V4.74A Φ7.5*0.7*5.0mm 90W (With Aluminum Alloy Heatsink ) Laptop Adapter 19V 4.74A 90W Φ7.5*0.7*5.0MM
6、Us Laptop Adapter Apple MacBook 60W
Price：$11
Applicable scope：Apple MacBook 16.5V 3.65A 60W Connector Shape L For A1181 A1185 A1330 A1278 A1342 A1344 A1435 (With Aluminum Alloy Heatsink)
Part3: Power adapter maintenance
If the power adapter is not used properly, you can feel the high temperature by touching the surface. Mastering the maintenance skills of the notebook adapter can help the adapter to dissipate heat and extend its service life.
Some Tips for Power adapter maintenance:
1. Do not cover anything on the adapter to ensure good ventilation and heat dissipation;
2. Place the adapter on the side to increase the contact area between the adapter and the air, so that the heat of the adapter is better dissipated;
3. Do not use a power adapter charge to other electronic devices. This is dangerous and harmful to the adapter.
4.If abnormal noise or odor is found, it is likely that there is an internal failure. In this case, it is best to have a fully check to the laptop power adapter. If there is a problem with the adapter of laptop, you need to purchase and replace laptop adapter.
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