How to choose the right charger for your phone

  The use of a mobile phone requires the use of a battery. The useful life of the battery, in addition to the performance of the battery, also has a close relationship with the charger. The quality of the charger directly determines the length of the battery life, so choosing a good charger is very important. Here are the charger manufacturers to give everyone how to choose the right charger:

1, see the charger charge termination control

  Low current chargers generally use time control. High-current fast chargers generally adopt the combination of -ΔV control and other control methods, and the degree of intelligence is higher. The greater the current provided by the charger, the more complex the charge termination control method is and the higher the cost and price. For users, choose according to their actual situation. If the used battery capacity is not very high, or if the charging speed is not particularly valued, you can choose an ordinary charger; if it is necessary to choose a faster charger with a higher price, it is better to perform more performance on the charger and battery performance. To understanding.

  For example, a charger that can supply a maximum charging current of 1000 mA can be used to charge a nickel-metal hydride battery with a capacity of 600 mAh. The battery needs to be a specifically designed battery suitable for high-current charging, or the charger can be provided with a smaller current selection.

2, see the charger's charging speed

  The common charger uses constant current charging, and the charging speed is mainly related to the current provided by the charger. The greater the charging current, the faster the charging speed. The length of charging time is related to the charging speed, but also depends on the size of the battery. It should be noted that the higher the charging current, the higher the internal system design quality of the charger and the battery. Under normal circumstances, the greater the charging current, the more heat that may be generated during the charging process, and the more damage the battery may experience. Poor quality chargers and batteries are prone to leakage and other safety performance problems when they are rapidly charged at high currents.

3, look at the charging efficiency of the charger

  The energy input to the battery during charging is not entirely converted into the energy stored in the battery, and there is also a part of the secondary reaction used inside the battery and converted into heat during the charging process, so the charging efficiency is always less than 100%. Charging current should be controlled within a certain range of charging, charging current is too large or too small, will reduce the charging efficiency. For a high-current fast charger, it is also necessary to specially design the charging mode of the charger in order to improve the charging efficiency.