A device for detecting state-of-health (SOH) of batteries has a detection module, a computation control module and an output module. The computation control module is electrically connected to the detection module and the output module. The detection module detects voltage values of a battery at multiple test points. The computation control module converts the voltage values at the test points into a ratio and maps the ratio to a SOH value in a SOH curve of the battery indicative of a state of health of the battery and the SOH value is outputted through the output module. The present invention can easily detect the SOH of a battery within a short period of time to solve the existing problems of being time-consuming and complicated in determining the SOH of batteries and causing incorrect determination of battery capacity and additional maintenance cost.

Applied Country	Category	專利狀態	證書號	專利權期間	研究成果公告日期
US	Elecric vehicle technology	獲證	CN103675692B	2016/12/21~2032/09/26
CN	Elecric vehicle technology	獲證	CN103675692B	2016/12/21~2032/09/26