The Meaning of Capacity Grading and The Classification of Battery Cell Tester
What is capacity grading and why do we need to do capacity grading?
Capacity Grading, in simple terms, means to sort the capacity and performance of batteries. By charging and discharging each lithium battery, the computer records the data of each test point, and thus obtains the capacity size and internal resistance of each battery, and determines the quality grade of the lithium battery. This process is called capacity division. Through capacity division, the battery can quickly and accurately evaluate the capacity and performance of the battery, help users make choices, and improve the efficiency and life of the battery. For batteries of the same specifications and models, the better the capacity and performance, the more expensive the price.
5V 100A Prismatic Battery Charge and Discharge Tester
Classification of Battery Charge and Discharge Tester
New batteries need to be capacity divided before leaving the factory, and old batteries also need to be capacity divided for cascade utilization. We call the special program-controlled equipment used to test battery performance a battery cell tester.
There are three common types of battery cell tester : cylindrical battery charge discharge test equipment, aluminum shell battery charge discharge test equipment, and pouch cell charge discharge test equipment. The internal structures of the three are almost the same. They are all composed of control systems, load modules, data acquisition modules and other parts, but the fixtures are different. The cylinder and the aluminum shell are contacted by upper and lower needles, while the polymer uses a gold-plated flat fixture to clamp the pole ears for charging and discharging tests.
According to the current size, it is divided into 5V3A\5V6A\5V10A\5V20A\5V30A\5V60A\5V100A\5V200A and other models; according to the number of channels, that is, the maximum number of batteries that can be placed at a time, the common ones are: 48ch\64ch\128ch\256ch\512ch. Users can choose the corresponding voltage, current, and channel number of battery charging discharging tester according to their needs.
5V 60A Prismatic Battery Charge and Discharge Tester
In addition to voltage, current and number of channels, battery cell tester are also divided into linear and energy feedback types according to the working mode.
Energy feedback means that during the charging and discharging process, the electricity released by the battery is converted back into energy consumed for charging the battery. The excess electricity is fed back to the factory power grid to meet the electricity needs of other factory facilities, or fed back to the upper-level power grid using a two-way meter, achieving two-way energy saving, saving a large amount of electricity expenses for air conditioning generated by energy consumption and heat, and saving electricity consumption expenses.
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