The car charger is harmful to the battery, the voltage is different, and the life of the mobile phone battery will be affected. The voltage required by the mobile phone charger is different, the voltage is not the same, the occasional use can be, long-term use is easy to cause battery loss, that is, the electricity charged is not durable.
1, car charger is commonly used for car battery (car 12V, truck 24V) powered car charger, widely used in a variety of portable, handheld equipment lithium battery charging field, such as: mobile phone, PDA, GPS, etc.; Car charging should not only consider the actual needs of lithium battery charging (constant voltage CV, constant current CC, overvoltage protection OVP), but also take into account the harsh environment of the car battery (transient peak voltage, system switching noise interference, EMI, etc.); Therefore, the power management IC selected by the car charging scheme must meet the following requirements: high voltage resistance, high efficiency, high reliability, low frequency (conducive to EMI design) switching power chip; Generally speaking, it is required to \"leather\".
2, the car charger is to facilitate the owner to use the car power supply to charge digital products anytime and anywhere accessories. Some high-end car chargers generally include 2 USB interfaces, which can charge two digital products at the same time. Such products generally have overload protection, short circuit protection, high voltage input protection, high temperature protection, four safety protection functions to ensure safe use. Car charger in the car at the same time, but also home, to achieve car charging, direct charging, USB charging three-in-one multi-functional use.