Advantages and disadvantages of lithium-ion battery charger. Can ordinary charger charge lithium-ion battery? Lithium-ion battery charger is the most common battery charger in our life, and even some people call it "button battery charger" according to its small appearance as well as lithium ion battery. At present, there are many misunderstandings about the charging method of lithium ion battery charger. Today Xiaobian will give you a popular science about the advantages and disadvantages of lithium ion battery chargers and whether ordinary chargers can charge lithium ion batteries.

Advantages and disadvantages of lithium-ion battery chargers

Lithium-ion battery chargers are specially used to charge lithium-ion batteries. Lithium-ion batteries have higher requirements on chargers and need to protect the circuit, so the lithium-ion battery chargers usually have higher control precision and can charge the lithium-ion batteries at constant current and constant voltage. Lithium-ion battery charger has the protection functions of short circuit, reverse battery polarity, overcurrent voltage, etc. When the power supply is low, it is in the sleep mode of low power consumption, and the battery leakage current is very small.

Advantages: high working voltage, small size, light weight, high energy, long life, safe and fast charging, wide allowable temperature range, small discharge current, no memory effect, no environmental pollution.

Disadvantages: no interchangeability with the dry battery, can not charge fast, high internal impedance, working voltage change, discharge rate, capacity drop fast, can not discharge large current.

Can ordinary chargers charge lithium-ion batteries?

Lithium-ion batteries cannot be charged with normal chargers, because normal battery chargers are usually set to two - or three-stage charging mode, and the voltage levels of normal batteries and lead-acid batteries do not match. There are many kinds of lithium-ion batteries, and the battery performance and battery protection plate parameters may be different. Therefore, lithium-ion batteries are not the same as ordinary batteries, and there are universal battery chargers. Lithium-ion batteries are typically shipped with a dedicated charger. To protect the lithium-ion battery, use a special charger.

Ordinary chargers are too high in voltage and current to satisfy the charging conditions of lithium-ion batteries. 11V lithium ion battery charging termination voltage should be 12.5V, charging current range is 0.1 to 1.5 times of the capacity of lithium ion battery, in order to extend the battery life, generally can use 0.1 times as good, 0.5 times can be fast charging.

The charging control of lithium-ion battery is to charge the battery at a constant current first, and then when the battery voltage rises to 4.2V, the voltage will not rise any more. The charger will detect the current and stop charging if the current is less than a certain value. Lithium is sensitive to overcharge, so the protection circuit is complicated. The maximum charging rated voltage for a single nominal 3.6V battery is 4.2V, and the upper limit of allowable error is not more than 1%.

If the charger of different mobile phone charges the specification is same, the size of charging port also suits, can mix and use. The same specification charger does not damage the battery, but if the specification is different, such as voltage or power is too high, it is likely to damage the mobile phone battery. It is recommended to use the original charger. Other phone chargers can be used as an emergency.

Lithium-ion battery charger charging the specific steps are very simple, according to the ordinary battery charger plug in and check the power supply indication. The charging of lithium-ion battery should meet the voltage matching with the lithium-ion battery and the current matching with the ampere-hour capacity of the lithium-ion battery. In addition, the charger has charging protection function to prevent overcharge and failure.