Suitable Charging Method For Better Battery Performance
Aug 20, 2024
| Lithium iron phosphate batteries have received more attention in recent years, thanks to its excellent performance, safety and stability, in addition to these advantages, lithium iron phosphate is also an environmentally friendly battery, the use and production process is basically green and non-polluting, but also a long service life, cost-effective, more and more in the field of electric vehicles, energy storage systems, power tools, drones, standby power supply, home and other areas to see its figure! It's also a good choice for the use and production process of electric batteries. How can we charge LiFePO4 Battery better? Please note that when you want to replace the old lead-acid battery and buy a LiFePO4 battery, please do not use the charger of the lead-acid battery to charge the LiFePO4 battery. When you use a lead-acid battery charger to charge a newly purchased battery (LFP), you will often find that the voltage (charge) or the performance and time of use of the battery differs from the description of the battery, and it does not meet the time and voltage of use mentioned in the instruction manual or product description (parameter list). This causes the buyer to wonder why there is such a discrepancy. This is mainly because of the differences in the characteristics of lead-acid batteries and lithium iron phosphate batteries, lead-acid battery charging voltage and charging mode is different from lithium iron phosphate, is a lead-acid charger to lithium iron phosphate battery charging, there may be: the battery is not fully charged, can not reach the expected use of the length of time, drop out of the power fast and so on. Lithium iron phosphate batteries are generally recommended to use CC/CV charging method, that is, constant voltage and constant current combination of charging (usually we recommend the use of lithium iron phosphate charger, such as SANFOU 14.6V20A Charger). As lithium iron phosphate batteries (such as SANFOU 12V 100Ah LiFePO4 Battery) are usually equipped with a BMS protection system, the battery if there is overcharging, overdischarge, overcurrent, high temperature, short-circuit, in order to protect the battery not to be damaged, the BMS will be shut down to protect the battery, do not be alarmed in this case, the activation of the battery can be continued to use (you can use the above mentioned SANFOU 14.6V20A Charger ). What is constant voltage and constant current charging? Constant voltage and constant current charging are common charging methods for lithium iron phosphate batteries. Constant current charging Keep the current constant throughout the charging process, this charging method can avoid excessive heat and gas during charging, but with the increase of charging time, the battery's ability to receive current in the late charging period will decrease. Constant Voltage Charging Throughout the charging process, keep the voltage constant (constant voltage between the two terminals of the battery), can automatically adjust the charging current, the voltage constant value is appropriate can be full of batteries to reduce gas precipitation and water loss. However, if the current is too high, the battery may be damaged. Constant voltage and constant current This charging method combines the above two methods (SANFOU 14.6V20A Charger for 12V Li-FePO4 batteries), the first stage of constant current charging, to reach the set voltage value, and then switch to constant voltage charging until the current drops to a lower level to avoid overcharging and overcurrent. Charging Rate A measure of how fast or slow a charge is. You can often see charging rates of 0.2C/0.5C, so how exactly do you calculate charger current, charging time, and charging rate? 0.2C charging is the recommended charging rate, where the C refers to the battery capacity (Ah as a unit, that is, ampere-hour), SANFOU 12.8V 100Ah LiFePO4 Battery, for example, the battery capacity of 100Ah, the 0.2C charging rate, the charger current selection of 20A, 5 hours to be able to fill the battery. The calculation is as follows: Charging Rate (C) = Charging Current (A) / Battery Capacity (Ah) According to the whole calculation can calculate the required charging current (A) and charging rate (C), so that when choosing a charger, you can know more clearly the time to fill the battery, but also know more clearly how to choose the right charger. Charging Precautions Comply with the product manual: Refer to the relevant parameters of the battery and the use method in the manual, and choose the charger and charging method suitable for LiFePO4 Battery according to the specific model and specific parameters of the battery. Temperature and Ventilation: Pay attention to the appropriate ambient temperature when using and charging the LiFePO4 Battery, avoid exceeding the temperature limit for battery use and charging. It is recommended to charge in a ventilated environment to avoid potential danger. Appropriate Charging Rate: The charging rate should not be too high as the heat generated will stress the battery and shorten its life. Avoid deep discharge: Avoid charging after deep discharge as much as possible, it is recommended to charge when 20%-30% of power is left, which can ensure that the battery will not be over-discharged, avoiding damage to the battery, enhancing the performance of the battery, and prolonging its service life. Conclusion Safely charging LiFePO4 batteries is critical to maximizing their performance, life and safety. By following recommended charging guidelines, using the appropriate charger for your LiFePO4, and monitoring the charging process, you can ensure that your LiFePO4 batteries operate efficiently and safely throughout their useful life. The right charging method and rate will maximize the performance of your battery and extend the life of your LiFePO4 battery. Please refer to the recommendations and parameters in the SANFOU LiFePO4 battery instructions to avoid damage to the battery from improper use. 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