How to choose a good quality lithium battery charger? The quality of the charger directly determines the life of the lithium battery, so it is very important to choose a good quality charger. The output voltage of the charger must be matched according to your battery. Here are some suggestions for selection.
Look at the charging speed of the charger
Common chargers use constant current charging, and the charging speed is mainly related to the current provided by the charger. The larger the charging current, the faster the charging speed. The length of the charging time is not only related to the charging speed, but also depends on the capacity of the lithium battery.
It should be noted that the larger the charging current, the higher the quality requirements for the internal system design of the charger and lithium battery. In general, the larger the charging current, the more heat may be caused during the charging process, and the greater the damage to the battery performance. Poor quality chargers and batteries are prone to leakage and other safety performance problems when charging quickly with high current.
Look at the charging efficiency of the charger
The energy input to the lithium battery during charging is not all converted into energy stored in the battery. Some of it is used for side reactions inside the battery and converted into heat during the charging process, so the charging efficiency is always less than 100%.
The charging current should be controlled within a certain range during charging. If the charging current is too large or too small, the charging efficiency will be reduced. For high-current fast chargers, the charging method of the lithium battery charger needs to be specially designed to improve the charging efficiency.
Look at the charging termination control of the charger
Low-current chargers generally use time control. The larger the current provided by the charger, the more complex the charging termination control method, and the higher the cost and price. For users, they should make choices based on their actual situation.
If the battery capacity used is not very high, or the charging speed is not particularly important, you can choose an ordinary charger; if it is necessary to choose a high-priced fast charger, it is best to learn more about the performance of the charger and lithium battery.
Judging the quality of the charger
A good electric vehicle charger uses positive and negative pulse technology, which can effectively prevent, inhibit and eliminate the sulfation and polarization of the battery. It can keep the capacity of the new battery stable for a long time; restore the capacity of the old battery that has been polarized and has decreased in capacity, and effectively extend the battery life by 2~3 times. It has intelligent timing protection function, automatic temperature compensation function, grid instantaneous impact protection, super moisture and corrosion resistance, etc.
Charging cable
The same applies to charging cables. It is best to use the original or packaged charging cable. If the charging cables are similar, they should be marked on them to avoid confusion.
