Charging detection method and detector of battery

Abstract

A battery charge detection method and a charge detection device are provided. The method includes the steps: setting charge parameters and detection parameters of a battery (S1); detecting a current voltage of the battery (S2); detecting a voltage according to a preset time when the detected voltage of current battery is more than or equal to a full charge voltage (S41); when the detected voltage is less than the full charge voltage after the preset time and all sampled voltages are more than a charge critical voltage and do not follow a monotone increasing trend, obtaining current charge time of the battery, namely a first charge time (S8); comparing the first charge time with the rating charge time of the charge parameters; when the first charge time is more than the rating charge time, confirming that a charge fault occurs in charge course. The charge fault occurring in the battery charge course can be detected by using the method and the device.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a battery charging detection method and a charging detection device. Background technique [0002] With the continuous development of communication technology, more and more wireless terminal devices have entered people's lives. Due to the requirements of portability and mobility, these wireless mobile terminal devices often need to be powered by built-in or external batteries. , these batteries are charged through the charger. The charging principle and process of the prior art are generally as follows: [0003] 1) In the constant current charging stage, the charging current of the charger remains constant, the charged power increases rapidly, and the battery voltage rises; [0004] 2) In the constant voltage charging stage, the charging voltage of the charger remains constant, the charging power continues to increase, the battery voltage rises slowly, and the charging current drops; ...

AI Technical Summary

Problems solved by technology

[0007] This kind of charging process is only used for normal charging process, but for some abnormal situations in the charging process, especially when some parts of the battery or charger fail, because there is no charging protection, the charging is usually not fully charged. But there is no corresponding prompt; the charging time is very long, and it is always displayed as charging, but the charger is not actually working; it prompts that the charging has been completed, but after a short period of use, the battery display changes from fully charged to unsatisfactory Or prompt to charge soon, etc.

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