About mobile phone battery capacity detection and accounting analysis

Mobile phone battery capacity testing method 1. Check the battery capacity with the help of the software for testing the battery capacity of mobile phones. 2. Under the condition of ensuring that the test process is constant current, select the resistance near the resistance of the mobile phone to be tested in series with the ammeter, and then discharge the fully charged (4.2V) battery until the end of 3.7V. Measure the current and record the time. The current as recorded is 200mA, and the discharge time is 4 hours. Then the battery capacity is 200X4u003d800mAh. 3. Hand over to a professional testing department for testing. This picture is provided by a registered user, Technology Digital Bank. How to calculate the battery capacity of the mobile phone according to the copyright statement? The charging method of the lithium battery is the voltage-limiting cross-current method, and the charging current is generally set at 0.2C. The charging and discharging current is generally referred to by C, which is the value corresponding to the battery capacity. The battery capacity is generally indicated by mA. For example, if the battery capacity of L600 is 1800mAh, the corresponding C is 1800mA. 0.2C is equal to 240mA. Generally, the charging current of lithium batteries is set at 0.2C. According to this principle, we can calculate the approximate capacity of the mobile phone battery through the charging time of the battery. Take the L600 as an example to calculate the battery capacity of the L600: the battery label is 1800 mA. According to the general lithium battery charging current set at 0.2C, 0.2×1800u003d360. From the charging time of the L600, the L600 battery is overflowing. The time is nearly 5 hours, that is, 360×5u003d1800. In this way, the capacity of the mobile phone battery is basically calculated. It can be seen that the battery capacity of this machine is consistent with the marked capacity. Many counterfeit phones have very large battery capacity targets, some are astonishingly large, and they fill up quickly during charging, and there will be no electricity after two days of use. In this way, it is easy for everyone to judge the approximate capacity of the battery. Disclaimer: The articles published on this website are all from the Internet. If there is any infringement, please contact to delete it. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete it.