... vehicle6.Test the change of the voltage when start the vehicle7.Can test battery standard:100-1700CCA,100-1000DIN,100 ... 1700EN,JIS.Features:1.Quickly test the battery’s main specifications: Internal Resistance, CCA, Voltage, Electric quantity, Life-span.2. ... testing results anytime.Specifications:Power supply: Powered by the battery being tested.Voltage range: 9-18V(DC)Working temperature: -18~50 ...