Method and device for detecting battery service life

Abstract

Provided are a method and a device for detecting battery life. The method comprises: acquiring a temperature of a battery in an ith preset period; determining whether the temperature of the battery is greater than a preset temperature, and if the temperature of the battery is greater than the preset temperature, acquiring a modification parameter corresponding to the temperature of the battery from a correlation table of the preset temperature and the modification parameter, and subtracting the modification parameter from a preset theoretical lifetime to serve as an updated theoretical lifetime; determining whether the updated theoretical lifetime is less than or equal to i preset periods, and if the updated theoretical lifetime is less than or equal to i preset periods, generating a life end message, and reporting the life end message, wherein i=1, and i is a positive integer. The method and device for detecting the battery life implement the detection for lifetime of batteries of various types and having different charging modes, and can effectively improve the accuracy of the detection.

Description

Technical field [0001] The embodiments of the present invention relate to battery technology, and in particular to a method and device for detecting battery life. Background technique [0002] In the communications field, the batteries on the devices are passively replaced, which brings great risks to the backup power. At present, in the prior art, the battery life is detected mainly by obtaining the change in the corresponding relationship between the voltage and the power when the battery is discharged, so as to solve the problem that the battery life cannot be predicted in the prior art. The working principle mainly includes : Under normal temperature conditions, from the time the battery leaves the factory to the battery life provided by the battery supplier, divide the life state intervals of N batteries, and obtain the relationship curve of the theoretical voltage and power of the battery corresponding to each life state interval. When the battery is used in practice, when...

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Problems solved by technology

[0003] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: the above-mentioned method is only suitable for mobile phone batteries and electric vehicles, etc., which are used in cycles, that is, the battery must be discharged regularly before the battery can be tested for life. In addition, The accuracy of this method is greatly affected by temperature and battery capacity state

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