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release time:2024-04-02 Hits: Popular:AG11 battery
Lithium battery pack manufacturers explain how to restore power imbalance in lithium battery packs
Lithium battery pack manufacturer explains how to restore the power imbalance of lithium battery pack? If the lithium battery pack is left idle for a long time, it will also lose power. This phenomenon is called self-discharge of the battery. The self-discharge rate of 18650 battery 2000mah will also be different in different usage environments, application states and life stages. So, how to restore the imbalance of the lithium battery pack? The lithium battery pack manufacturer will tell you.
How to restore the imbalance of the lithium battery pack?
1. Charge the entire lithium battery pack first, and float charge it within 2-3 hours after turning on the light. If the battery is not powered for a long time, it can be charged normally on the protective plate for 10 minutes (charged at the discharge port), and then charged normally.
2. Unplug the protection board circuit and unplug it, and then mark it again. The two wires on the board cannot be restored. Measure the voltage on adjacent pins on the wire. For 48V, there are 16 voltages, while for 60V there are 20 voltages. The first set of voltages starting from the negative pole is the voltage at which the battery pack goes negative starting from the first row. Find individual strings with voltages below 3.50V, determine the positive and negative values, and determine the negative values and label them.
3. Use a 3.6V charger to charge a single line at a voltage of 3.50V to 3.60 to 3.70V. However, someone needs to prevent used 18650 battery 2000mah from overcharging.
4. Plug back the cables in the original order. Be careful not to reverse the connection. Install the battery and put it into use. If the lithium battery pack is used continuously, the capacity of the lithium battery will naturally decrease. This is related to the material properties of 18650 battery 2000mah and is related to the material properties of 18650 battery 2000mah. The simple understanding is that for lithium-ion batteries, the activity of lithium ions continues to decrease until the final capacity is completely reduced.
5. In order to extend the service life of the lithium battery pack, it is usually recommended to use the lithium battery in shallow charging and shallow discharge modes, or to charge when the lithium battery is not used too much or the battery is low. The lifespan of 18650 battery 2000mah is undesirable.
The essence of the capacity reduction and attenuation of lithium battery packs is the decrease in lithium ion content, which is mainly caused by structural material failure or deactivation of positive and negative electrode materials, electrolyte degradation, lithium battery abuse, etc. In order to extend the life of 18650 battery 2000mah, they must be used correctly.
What is the best lithium battery charge level?
Someone once told me that it is best for a lithium battery to have a charge between 40% and 60%, but why? Because keeping a charge between 40% and 60% is worth the storage performance. Lithium-ion batteries generally have a factory capacity of about 50%, which is the best storage capacity that has been experimentally verified by the battery factory.
18650 battery 2000mah are not afraid of charging, but afraid of running out of power. How can I say this? Many batteries have so-called "charge management ICs" that prevent the battery from exceeding the safe voltage and exploding during charging, and preventing the battery from being too low to start the charging process due to lack of power. Therefore, if the lithium battery is out of power and left uncharged for a long time, it is likely that the voltage will be too low, causing the battery to be scrapped early. If the lithium battery is not used for a long time, it is best to retain 40% of the power.
As a method of product quality control, if some cells in the same batch have an excessively high self-discharge rate, it indicates that their own quality is defective and must be selected and disposed of separately. Generally, for every 10°C increase in battery temperature, the self-discharge rate doubles. The self-discharge capacity of lithium-ion batteries is about 1~2% per month, while the self-discharge capacity of various nickel-based batteries is 10~15% per month.
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