The larger the internal resistance of the battery, the better or the smaller the better?
The so-called battery is an electrochemical device that stores chemical energy and releases electrical energy when necessary. The larger the internal resistance of the battery, the better or the smaller the better? ? How much do you know about this problem? ? Today, the editor of Zhengzhou Kanglida Electronic Power Supply Co., Ltd. will give you some relevant information on this issue. I hope it will be helpful to you. In the future, you can avoid detours when using and purchasing.
The internal resistance of all batteries is the smaller, the smaller the internal resistance, the stronger the large current discharge capacity, and the more fully the electric energy is released. Any power supply more or less has a certain internal resistance. In order to improve the load carrying capacity, we hope that the internal resistance of the power supply is as small as possible.
The resistance r is the internal resistance of the car battery, and RL is the load, which is in series with the internal resistance r of the battery, and the current flowing through r is equal to the load current. Assuming that the magnitude of r is constant, the larger the load current, the greater the current flowing through the internal resistance r, and the higher the voltage across r, so that the voltage applied to both ends of the load RL decreases. If the voltage drop is too large, it may even cause the RL to fail to obtain the rated working voltage and fail to work normally. Therefore, we hope that the internal resistance of the battery is as small as possible so that when a heavy load is driven, there will be no significant voltage drop on the internal resistance.
The internal resistance of the battery will increase with the use of time, especially for the battery that is about to be scrapped, the internal resistance will increase significantly. At this time, although the battery voltage is higher after fully charged, the internal resistance becomes larger. When a large current load is applied, a large voltage drop will be generated on the internal resistance, thereby reducing the voltage across the load.
Zhengzhou Kanglida Electronic Power Supply Co., Ltd. was established in 2000, specializing in the development, production and sales of 4 series of 2V, 4V, 6V, 12V maintenance-free lead-acid batteries and electronic chargers. Products are widely used in anti-theft alarm systems, fire alarm systems, building intercom systems, elevator emergency evacuation systems, emergency lights, attendance machines, sprayers, electronic scales, children's electric motorcycles, cartoon inflatables, car washers, table turntables, parking locks, Strobe lights, traffic lights, DC screens, solar energy, wind energy, UPS, EPS and other backup power systems, if you choose a company, you must choose a company with guaranteed reputation and quality. This company has been operating for many years and has many years of experience. Experienced company, so if you need this, you may wish to contact us, I believe it is a good choice.
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