Information processing method, information processing apparatus, and information processing system

The invention provides an information processing method, an information processing device and an information processing system which can improve the utilization value of a battery. The information processing method includes: acquiring battery-related information relating to a vehicle-mounted battery from a battery DB; recording, in a diagnosis DB, the degree of deterioration of the battery diagnosed using a diagnosis method for diagnosing the degree of deterioration of the battery in accordance with the acquired battery-related information; the transaction price of the battery whose degradation degree has been diagnosed is presented using a calculation method that specifies the relationship between the degradation degree of the battery and the transaction price. 本发明提供一种能够提高电池的利用价值的信息处理方法、信息处理装置和信息处理系统。信息处理方法包括：从电池DB取得与车载用的电池有关的电池相关信息；将使用与所取得的电池相关信息相应的、诊断电池的劣化程度的诊断方式诊断出的电池的劣化程度记录在诊断DB中；使用规定了电池的劣化程度与交易价格的关系的计算方式，提示诊断了劣化程度的电池的交易价格。