An inferior PD 20W Magsafe Powerbank may endanger our personal safety at any time. There are so many types of mobile power supplies on the market today, how to choose a customized PD 20W Magsafe Powerbank?
1. Look at the battery
The main component that determines the safety of the customized PD 20W Magsafe Powerbank is the battery cell. The mobile power supply battery cell has a lithium electronic battery and a lithium polymer battery.
2. Look at the appearance
Regarding the battery of the customized PD 20W Magsafe Powerbank, there is no need to look at such complicated parameters as the rated power and the conversion rate of the battery. Because the difference is really not big, you need to know the following sentence to choose the capacity: 5000mAh can charge the mobile phone 1~2 times, 10000mAh can be charged 3~4 times, 20000mAh can be charged 5~6 times , and so on. You can choose the capacity of the mobile power supply according to the capacity of your mobile phone and the needs of daily use.

3. Look at current and voltage
The charging voltage and current of the customized PD 20W Magsafe Powerbank will affect the stability and speed of charging. If it is too large, it will damage the mobile phone. If it is too small, the charging will be slow. Now the output voltage of the mobile power supply is generally 5V, and the current must be at least 1A, and the better one is 2A.
4. Look at the material
For a good customized PD 20W Magsafe Powerbank, the workmanship and materials also need attention. If you look for the ISO-9001 international quality system certification, it is mainly divided into the requirements of five modules. These five modules are: quality management system, management responsibilities, resource management, products. Implement, measure, analyze, and improve.