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The service life of the lithium battery is closely related to the lithium battery charger. It is very important to choose a high-quality charger. The output voltage of the lithium battery charger needs to match the battery, otherwise it will be undercharged or other situations.

How to choose a high-quality lithium battery charger?

1. Check the charging speed of the charger

Common chargers use constant current charging mode, and the charging speed is mainly related to the current provided by the charger. The higher the charging current, the faster the charging speed. The length of charging time depends not only on the charging speed, but also on the capacity of lithium battery.

It should be noted that the higher the charging current, the higher the quality requirements for the internal system design of the charger and lithium battery. In general, the higher the charging current, the more heat may be caused during the charging process, and the greater the possible damage to the battery performance. Poor quality chargers and batteries are prone to leakage and other safety performance problems when charging rapidly with high current.

2. Check the charging efficiency of the charger

The energy input to the lithium battery during charging is not all converted into the energy stored in the battery, and some is used for the side reaction inside the battery and converted into heat during charging, so the charging efficiency is always less than 100%.

During charging, the charging current should be controlled within a certain range. If the charging current is too large or too small, the charging efficiency will be reduced. For the fast charger with large current, the charging mode of lithium battery charger needs to be specially designed to improve the charging efficiency.

3. Check the charge termination control of the charger

Chargers with small current generally adopt time control mode. The greater the current provided by the charger, the more complex the charging termination control mode, 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 a common charger; If it is necessary to choose a fast charger with higher price, it is better to know more about the performance of the charger and lithium battery.

4. Judge the quality of charger

A good electric vehicle charger uses positive and negative pulse technology, which can effectively prevent, suppress and eliminate the vulcanization and polarization of the battery. The new battery capacity can be kept stable for a long time; It can restore the capacity of the old battery that has been polarized and reduced, and effectively extend the service life of the battery by 2-3 times. It has the functions of intelligent timing protection, automatic temperature compensation, instantaneous impact protection of power grid, strong moisture and corrosion resistance, etc.

5. Charging line

The same is true for the charging cable. It is better to use the original or packaged charging cable. If it is a similar charging line, it should be marked on it to avoid confusion.

To charge lithium batteries, special chargers for lithium batteries need to be equipped. They must not be mixed with chargers for lead-acid batteries. The manufacturer can directly match the lithium batteries when purchasing them.

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