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anhtho
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Anyone knows what is the approx. internal resistance of a lead battery, say, 12V, 20Ah.
Thanks
Thanks
Crosstalk said:I'm not 100% sure on this, but I don't think that the battery's capacity matters.
anhtho said:I just think that the higher the capacity, the bigger the electrode plates, so the internal resistance should be smaller.
Internal resistance of a lead battery is the resistance that exists within the battery itself. It is caused by the resistance of the electrolyte, the electrode materials, and the interconnections between cells. This resistance can affect the performance and efficiency of the battery.
Internal resistance is important in lead batteries because it can affect the voltage and current output of the battery. High internal resistance can lead to voltage drops and reduced capacity, while low internal resistance can improve the battery's performance and efficiency.
Internal resistance of a lead battery is typically measured using a specialized device called a battery impedance meter. This device sends a small current through the battery and measures the voltage drop, which can then be used to calculate the internal resistance.
The internal resistance of a lead battery can be affected by various factors including temperature, state of charge, age of the battery, and the quality of the materials used in its construction. Higher temperatures and lower state of charge can increase the internal resistance, while a well-constructed and maintained battery will have lower internal resistance.
Yes, the internal resistance of a lead battery can be reduced through proper maintenance and use. Keeping the battery at optimal temperature and avoiding deep discharges can help to reduce internal resistance. Additionally, using high-quality materials in the construction of the battery can also contribute to lower internal resistance.