Mobile phone chargers can be roughly divided into travel chargers, seat chargers and maintenance chargers. The first two types are mainly contacted by ordinary users. And the travel charger is generally sold in the market. There are also various forms of travel chargers. The common ones are the cheap duck egg type mini travel charger, the ordinary desktop card type charger, and the desktop charger with LCD display.
There are also considerations in choosing compatible mobile phone chargers. They should be products produced by good manufacturers. Although the principles of some chargers are introduced above, it is very difficult to identify them in practice. It is also difficult to accurately judge the performance and quality of the charger from the appearance of the charger without opening the charger and using the test instrument. Therefore, the charging effect is also relatively good. For non original seat charging, it depends on the detail of the mold, whether the mobile phone can be plugged in and out at one time, and the resistance is uniform and the tightness is moderate. As for some seat batteries that directly charge the battery, just like the above-mentioned battery charger, it depends on the rationality of its circuit design.
Generally speaking, only chargers with relevant certification marks have safety assurance. Therefore, try to buy products with certification marks. Second, choose a charger that fits your mobile phone. Mobile phone chargers generally have two charging functions: one is to charge with the phone (the charger charges the battery through the electrical connector and the mobile phone), and the other is to charge the battery through the charging stand. Before purchasing, you should be clear about the type, capacity and nominal voltage of the battery you use, so that you can choose the appropriate charger.
Standard charger products are marked with technical parameters such as the range of use, output voltage and output current. If conditions permit, a multimeter can be used to test the output no-load voltage and output short-circuit current of the charger when purchasing to determine whether the actual data are consistent with the technical parameters.
Different chargers can be mixed. As long as the interface is the same and the output voltage and current are consistent, they can be used. Generally, mixed use has no effect, but ordinary people do not have much concept about whether the output current is the same, which is easy to make mistakes. It is recommended to use the original charger, but it is necessary to resolutely avoid using inferior chargers.
