Keyword search: battery plant ,  lithium battery factory ,  power bank works ,  lifepo4 battery mill ,  Pallet Trucks LiFePO4 Battery,  LiFePO4 Pallet Trucks Battery,  Lithium Pallet Trucks Battery, 

Correct charging and maintenance methods for 18650 lithium batteries. The working principle of 18650 lithium batteries is nothing more than charging to reserve energy, discharging to convert it into other energy and release it. When in an idle state without charging or discharging, there are three main methods for the correct use of lithium batteries: correct charging, correct discharging, and correct maintenance.

The numbers 18650 in the 18650 lithium battery represent the external dimensions: 18 refers to the battery diameter of 18.0mm, and 650 refers to the battery height of 65.0mm. The common 18650 batteries are divided into lithium-ion batteries, lithium iron phosphate batteries, and nickel hydrogen batteries. The voltage and capacity specifications are: nickel hydrogen battery voltage is 1.2V, common capacity is 2500MAH, lithium-ion battery voltage is 3.6V, common capacity is 1500MAH-3100MAH.

Correct charging method for 18650 lithium batteries

1. High voltage charging: This charging method does not have a dedicated control circuit, and directly charges the battery with a protection board using a 5V power head, completely relying on the high voltage limit of the protection board. The characteristic is that the current is high at the beginning, then gradually decreases and floats at any time; Most of the things that will explode are like this, commonly seen in low-end plug-in MP3 players, high-end ones can't afford it, I don't know - I dare not say "such an expensive machine should have a charging circuit" - there are many things that should be done, but there are more things that should be done but not done;

2. Constant voltage charging: This method is similar to the previous one. Constant voltage is actually a "voltage limit", setting a relatively accurate maximum voltage, and then charging it to that voltage. If it is less than 4.2V, it will never stop, which is known as "foolish charging" in the martial arts world. If this type of charger makes the cut-off voltage very precise, it is safer if it is too low. If it is too high, it still needs to rely on a protective board. As for bare batteries, it is a blessing for oneself. Commonly seen in today's mobile phone universal charging and flashlight direct charging, these chargers cost less than one yuan and are all made up of inferior parts. The retail price on Taobao ranges from 2.00 to 15.00, and it's hard to say how long they will last;

3. Constant current charging: This method still originates from the previous and previous circuits, but limits the maximum charging current. Constant current and constant voltage are actually "current limiting and voltage limiting". As the son of foolish charging, he is still a fool. This type of circuit is more popular, such as Nanfu and Xinyu, which do not completely cut off after being fully charged and switch to trickle float charging - now it is believed that long-term low current charging is one of the reasons for the bloating of 18650 lithium batteries;

4. Intelligent charging: This is currently considered an ideal charging management method, following the charging algorithm mentioned at the beginning of this section, integrated into a small chip IC, with simple peripheral circuits, stable and reliable, such as TP4054/4055/4056/4057, TP4002/5000, MAX1879, and so on. The main feature of this chip is that it monitors both voltage and current when determining whether it is fully charged. It stops charging at 4.2V or when the charging current is less than 0.01C (usually around 50mA); Completely cut off after being fully charged, without trickle float charging, but monitor the voltage at any time. If the voltage of the 18650 lithium battery drops to a certain value, start charging.

When using lithium batteries, it should be noted that the 18650 lithium battery enters a sleep state after being left for a period of time. At this time, the capacity is lower than the normal value, and the usage time is also shortened. But lithium batteries are easy to activate, as they can be activated and restored to normal capacity after 3-5 normal charging and discharging cycles. Due to the inherent characteristics of lithium batteries, they have almost no memory effect. Therefore, the new lithium battery in the user's phone does not require special methods or devices during the activation process.

The activation of lithium batteries does not require special methods, and they will naturally activate during normal use. If you insist on using the popular "first three 12 hour long charging activation" method, it will not actually be effective.

Even with good protection and control circuit quality of the original charger, the protection of the 18650 lithium battery is still quite guaranteed. Charge according to standard time and procedure, even for the first three times.

Correct maintenance methods for 18650 lithium batteries

Suitable temperature, preventing cold and heat. It is best to use an ambient temperature of around 25 ° C, as a high ambient temperature can cause the battery to overcharge and produce gas, while a low ambient temperature indicates insufficient battery charging.

Among the correct usage methods of 18650 lithium batteries, the charging method of lithium batteries is the most important, because incorrect charging methods can cause safety issues, and discharge and daily maintenance only affect the service life of lithium batteries. Lithium batteries themselves are also consumables, and no matter what measures we take, we cannot avoid their ultimate loss. We only use the correct methods to delay their aging.

To maximize the efficiency of lithium-ion batteries, it is necessary to use them frequently to keep the electrons inside the battery in a flowing state. If you don't use lithium batteries frequently, please remember to complete one charging cycle and perform a battery calibration once a month, that is, deep discharge and deep charging once.

Pay attention to the charging voltage. If the charging voltage is too high, it will cause the battery to overcharge. Otherwise, it will result in insufficient charging, which is harmful to the 18650 lithium battery and requires attention.

The above are the correct charging and maintenance methods for 18650 lithium batteries. Learning these battery maintenance tips will help you use lithium batteries longer!

Lithium Batteries ,Ensure Quality

Our lithium battery production line has a complete and scientific quality management system

Ensure the product quality of lithium batteries

Years of experience in producing lithium batteries

Focus on the production of lithium batteries

WE PROMISE TO MAKE EVERY LITHIUM BATTERY WELL

We have a comprehensive explanation of lithium batteries

QUALIFICATION CERTIFICATE

THE QUALITY OF COMPLIANCE PROVIDES GUARANTEE FOR CUSTOMERS

MULTIPLE QUALIFICATION CERTIFICATES TO ENSURE STABLE PRODUCT QUALITY

Providing customers with professional and assured products is the guarantee of our continuous progress.

Applicable brands of our products