Single cell balanced development charging technology method for 2025 button cell battery

　　The 2025 button cell battery is a battery pack with traction force. It uses multiple cells connected in series with different voltages and is used. The work intensity is much higher than that used by other companies in related fields. Many student users need to pay attention to the use for a period of development. Finally, this affects the battery's monomers to become seriously unbalanced. Some have high capacities and some have very low capacities. Once the water is dried, the specific gravity and density of all monolithic forklift batteries deviate greatly. For this social phenomenon in China, we have to do it ourselves. In order to study the following data analysis: the voltage and capacity of a single battery are limited, and in many applications it is necessary to form a series battery pack for use. Operations other than inspection of electric forklift batteries: Professionals should be consulted, especially when replenishing electrolyte (dilute sulfuric acid). Forklift battery manufacturer's operation of end-of-life batteries: When the battery is close to the end of its life, the electrolyte in the single-cell battery decreases very quickly, and distilled water should be replenished every day. Appearance of forklift battery rental: A dirty battery surface will cause leakage. The battery surface should be kept clean and dry at all times. However, there are balance problems among the batteries in the battery pack. How to effectively improve the service life of the battery pack, improve the stability of the service system and reduce environmental costs are important economic issues facing our lives. The service life of the battery is determined by many major factors, the most important of which is the physical safety performance of the battery itself. In addition, the low level of battery internal management science and technology and the unreasonable charge and discharge control system construction are also important reasons for the shortened battery life in my country. For battery packs, in addition to the above-mentioned reasons, the inconsistency between single cells is also an important factor. In view of the unbalanced phenomenon of single cells that may exist during the charging and discharging process of the battery, the author investigated and analyzed the results and compared several current equalizing charging methods. Based on his own actual situation, he came up with a lossless equalizing charging method and conducted experimental verification. Existing balanced charging methods:

　　At present, there are mainly the following methods to achieve uniform charging of single cells in series batteries.

　　1. Attach a parallel balancing circuit to each single cell of the battery pack to realize the shunt function. In this mode, when a certain battery reaches Wally first, the balancing device can prevent it from being overcharged and convert the excess energy into heat energy to continue charging the incompletely charged battery. This method is simple, but it will cause energy loss and is not suitable for fast charging systems.

　　2. Before charging, discharge each cell one by one using the same load to the same development level, and then perform constant current charging to ensure a more comprehensive and accurate equilibrium state between each cell in society. However, for the battery pack, due to the differences in the physical environment between individual students, it is difficult to achieve a completely inconsistent ideal educational effect after each cell is deeply discharged. Even if the same teaching effect is achieved after discharge, new imbalances will appear during the charging management process.

　　3. Timing, sequencing, and individually detecting and evenly charging the single batteries in the battery pack. When charging the battery pack, it can be ensured that each battery in the battery pack will not be overcharged or overdischarged, thus ensuring that each battery in the battery pack is in normal working condition.

　　4. Using the time-sharing principle, additional current flows into the relatively low-voltage battery by controlling and switching switch components to achieve charge balance. The method is effective, but control is complex.

　　5. Use the voltage parameters of each battery as the balancing object to restore the voltage of each battery to be consistent. As shown in Figure 2, during equalization charging, the capacitor is alternately connected to two adjacent batteries through the control switch, receives the charge of the high-voltage battery, and then discharges to the low-voltage battery until the voltages of the two batteries become consistent. This balancing method can solve the problem of battery pack voltage imbalance, but it is mainly used when the number of batteries is small.

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