Conclusion: The voltage characteristics of ternary lithium batteries and lithium iron phosphate batteries depend on the number of battery strings. The rated voltage of a ternary lithium battery is 3.6V, and the operating range is 2.5V to 4.2V. The battery voltage is calculated based on the number of strings. For example, a 10 string battery is 36V and the rated voltage of a ternary lithium battery is 3.6V and the operating range is 2.5V to 4.2V. The voltage of the Battery is calculated based on the number of channels. the operating voltage range is 25V to 42V. In comparison, the lithium iron phosphate battery has a nominal voltage of 3.2V and an operating range of 2.0V to 3.65V. The battery 15-string battery has a nominal voltage of 48 V and an operating voltage range of 30 V to 54.75 V. In specific applications, 12 V ternary lithium batteries aregenerally designed with a rated voltage of 11.1 V.
In the design of the battery system, its voltage characteristics should be considered when selecting batteries to ensure stable operation in different working conditions. Battery voltage changes depending on the number of cells in series, and the operating voltage range reflects the battery's performance during charging and discharging. Whether it is ternary lithium or lithium iron phosphate, they should be reasonably configured according to actual needs to ensure the safety and efficiency of the battery system.
What should I do if the lithium battery cannot be charged after undervoltage?
Yes. Use an ammeter to connect a resistor with a suitable resistor in series and calculate the internal resistance of the battery by measuring the battery discharge current todetermine if the battery has sufficient power.
Using a digital multimeter to measure battery voltage can not only easily determine the positive and negative poles of the battery, but also determine whether the battery is about to run out . If the measured voltage is greater than or equal to the indicated voltage, it means the battery has enough power. If it is too lower than the indicated voltage, it means that the battery is insufficient.
Detailed information:
1. Users are prohibited from bending the pole pieces. The mechanical strength of the pole pieces is not strong, and most battery poles use aluminum sheets.
2. Avoid short-circuiting the battery. The pole piece is easily shorted when connectedlocated on the surface of a conductive object. A short circuit will produce a large current, causing the battery to short circuit. heat up, produce toxic gases and even explode. When customizing lithium batteries, choosing a suitable protection board can effectively protect the battery in the event of a short circuit.
3. Some accidents, falls, collisions, turns, etc. will affect battery performance.
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The undervoltage protection function of electric vehicles is a protection mechanism implemented to prevent excessive battery discharge while driving the electric vehicle. So, what should I do if the lithium battery cannot be charged after undervoltage?
1. If the beatlithium battery cannot be charged after undervoltage, the car owner can choose the fast charging method, directly use a high-power charger to charge, or directly go to a fast charging station to charge the battery. lithium batteryStore electricity and use a multimeter to measure the voltage of the lithium battery after it is fully charged to see if the voltage has recovered.
2. You can also use lithium batteries of the same specification and use wires to connect two lithium batteries in parallel for repair. However, you need to connect the positive and negative poles when wiring and use the new lithium. Battery to replace the old battery. Discharging can restore voltage. After discharging for a while, you can use a multimeter to measure and check whether the voltage of the old batterye was successfully restored.
3. Or use a charger with lower power than the original one. Typically, charging takes about half an hour. Using the original charger can effectively restore the battery.