How to charge lithium iron phosphate batteries and lead-acid batteries?

How to charge the lithium iron phosphate battery? Lithium iron phosphate is a type of lithium battery because energy is stored in the same way, it moves and stores lithium ions instead of lithium metal. These cells and batteries not only have high capacity, but also can supply high power. At present, high-power lithium iron phosphate batteries have become a reality, and they can be used as energy storage units or power sources. In addition, the lithium iron phosphate battery is one of the most vigorous batteries in history. Step 1: Use constant current charging to reach about 60~70% of the state of charge; when the charging voltage of each cell reaches 3.65V, go to Step 2: Step 2: Constant voltage charging, from constant current to constant voltage means charging current Limited by the battery's acceptable current at this voltage, the charging current gradually decreases, just like charging a capacitor through a resistor, and the voltage gradually reaches its final value. Since the overvoltage can be applied to the lithium iron phosphate battery without analyzing the electrolyte, it can be charged only through step 1 of CC to reach a 95% state of charge, or use constant current and constant voltage charging to obtain a 100% charge status. This is similar to the safe forced charging method of lead-acid batteries, with the shortest total charging time of about two hours. How to charge lead-acid batteries? Pulse charging: It is simple and economical. This method has a large charging current and a fast charging speed. The disadvantage is that when the grid voltage fluctuates, the charging current also fluctuates. Constant current charging: In order to guard against too high temperature rise in lead-acid batteries and too much electrolyte loss, the charging current is adjusted to be relatively small, and the charging time is longer. On the other hand, if the charging time is too long, overcharging will occur. , In order to guard against damage to the battery due to overcharge, an additional overcharge test or on-time circuit is required. Constant voltage charging: Both theory and practice have proved that constant voltage charging is safe when the charging voltage is lower than the upper limit of the charging voltage. Even if the charging time is long, there is no danger. If necessary, the battery can still work in a floating state. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What is the open circuit voltage and working voltage of the battery?