Calculate energy efficiency for the following SOCs: — from SOC at discharge test termination to the next rounded SOC decade and each following 10 % SOC increment up to the SOC level at fast charge termination,— from each rounded SOC decade following the discharge test termination to each following 10 % SOC increment up to the SOC level at fast charge termination, based on measured voltage and current data for each standard discharge and the following fast charge test. Use the following formula for calculation of the requested energy efficiency values: