What are the selection and charging procedures of lithium battery chargers?
Selection of lithium battery charger
How to choose a good quality lithium battery charger? The quality of the charger directly determines the length of 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, this must be accurately grasped.
1. Look at the charging speed of the charger
Common chargers use constant current charging, the charging speed is mainly related to the current provided by the charger. The larger the charging current, the faster the charging speed. In addition to the charging time, the charging time depends on the capacity of the lithium battery.
It should be noted that the higher the charging current, the higher the quality of 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 may be. Inferior quality chargers and batteries are prone to safety performance issues such as leakage when fast charging at high currents.
2. 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, and a part of it is used for side reactions inside the battery and converted into heat during charging, so the charging efficiency is always less than 100%.
The charging current should be controlled within a certain range when charging. If the charging current is too large or too small, it will reduce the charging efficiency. For fast chargers with large currents, special design is required for the charging method of lithium battery chargers in order to improve the charging efficiency.
3. Look at the charge termination control of the charger
Chargers with small current generally adopt the time control method. The greater the current provided by the charger, the more complicated the charging termination control method, and the higher the cost and price. For users, they should choose according to 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 fast charger with a higher price, it is best to perform more on the performance of the charger and lithium battery Some understanding.
4. Judge the quality of the charger
A good electric vehicle charger uses positive and negative pulse technology, which can effectively prevent, suppress and eliminate the sulfide and polarization of the battery. It can keep the new battery capacity stable for a long time; restore the capacity of the old battery that has been polarized and reduced in capacity, effectively extending the battery life by 2 to 3 times. With intelligent timing protection function, automatic temperature compensation function, power grid instantaneous impact protection, super moisture and corrosion resistance and so on.
5. Charging cable
The charging cable is the same, it is best to use the original or set charging cable. If it is a similar charging cable, it should be marked on the top to avoid confusion.
Lithium battery charger charging process
When the power is not connected, the LED on the circuit board does not light
Connect the power supply to the circuit board, the green LED keeps on, and the circuit board is waiting for the lithium battery to be inserted
After inserting the lithium battery, it starts to charge and the LED turns orange
When the lithium battery reaches full condition, the charging will stop and the LED will turn orange
After the lithium battery is fully charged, the battery is removed, the LED turns green, wait for the lithium battery to be recharged
During the charging process, the charging percentage will be displayed
Continuous green: waiting for battery to be inserted
Continuous yellow: charging
Continuous orange: the battery has been fully charged or has been charged for 6 hours
Flashing orange: warning message (output short circuit, positive and negative poles reversed, abnormal temperature)
Notes for lithium battery charger
1. The charger's working selection should be consistent with the charged battery. If the charger works in the state of a lithium battery and the nickel-metal hydride or nickel-cadmium battery is not charged, the battery is not fully charged, which will greatly reduce the working time. If the charger works in the state of a nickel battery and decharges the lithium ion battery, the lithium battery is overcharged, which will seriously affect the battery life.
2. To understand whether the battery is fully charged when the charger used is fully lit. Some chargers can remove the lithium battery when the full indicator light is on, and some chargers can only remove the battery when the indicator light is on.
If you want to know more, our website has product specifications for lithium battery chargers, you can go to ALLICDATA ELECTRONICS LIMITED to get more information