Lithium battery 3C certification testing mainly includes the following aspects:
1. Battery safety performance testing.
Battery safety performance testing is an important part of lithium battery 3C certification testing, which mainly includes overcharge, overdischarge, short circuit, drop, heating and acupuncture tests. The purpose of these tests is to ensure that the battery does not have safety hazards such as ** and leakage in extreme cases.
The overcharge test is to detect whether the battery can control the charging current and charging voltage during the charging process to avoid potential safety hazards caused by battery overcharging. The over-discharge test is to detect whether the battery can control the discharge current and discharge voltage during the discharge process to avoid damage to the battery due to over-discharge. Short-circuit test is to detect current and temperature changes after a short circuit of the battery to evaluate the safety performance of the battery. The drop test is to drop the battery from a certain height to the ground to test whether the battery can withstand the impact force and maintain safe performance. Heating and acupuncture tests apply a certain pressure to the battery by heating or needling to test the reaction and safety of the battery.
2. Battery capacity testing.
Battery capacity testing is one of the important indicators of lithium battery 3C certification testing, mainly including the detection of rated capacity and actual capacity. Rated capacity refers to the amount of power that a battery can provide under standard conditions, while actual capacity refers to the amount of power that a battery can provide under actual use conditions. By testing the capacity of the battery, the service life and performance of the battery can be evaluated.
3. Battery cycle life detection.
Battery cycle life testing is an important means to detect the number of charge and discharge times and service life of lithium batteries. After a lithium battery is charged and discharged many times, its performance and service life will gradually decline. Through cycle life testing, the service life and performance of lithium batteries can be evaluated, and the maintenance and replacement cycles of lithium batteries can be determined.
Fourth, battery environmental adaptability testing.
The environmental adaptability test of lithium battery includes high and low temperature cycle, temperature shock, damp heat cycle and other tests. These tests can simulate the performance of lithium batteries in different environments and test the weather resistance and stability of lithium batteries. Through environmental adaptability testing, the performance and safety of lithium batteries in different environments can be evaluated.
5. Battery electromagnetic compatibility testing.
Electromagnetic compatibility testing is an important means to ensure that lithium batteries will not interfere with other electronic devices during use. Electromagnetic compatibility testing includes electromagnetic radiation, electromagnetic immunity, conducted immunity and other tests. Through these tests, the electromagnetic compatibility of lithium batteries can be evaluated and it is ensured that they do not interfere with other devices in different environments.
To sum up, lithium battery 3C certification testing mainly includes battery safety performance testing, battery capacity testing, battery cycle life testing, battery environmental adaptability testing and battery electromagnetic compatibility testing. The comprehensive coverage of these testing methods can ensure that the safety performance, capacity, service life and electromagnetic compatibility of lithium batteries meet the requirements of relevant standards, and provide users with safe and reliable lithium battery products.