Battery Multimeter, Yeeco DC 1mV-28V High Precision LCD Digital Battery Internal Resistance Voltage Meter Tester Multimeter Analyzer with Clamps and Test Leads High accuracy battery internal resistance tester, with LCD display which shows the testing result clearly; voltage and internal resistance show on the display at the same time DC 1mV-28V; 0.01m-200 testing range; there is a Micro USB input interface that you can power on this tester; equiped with testing lead and clamp which attach USB connector Great for DIY or factory using; For lead acid, lithium ion, lithium polymer, lithium iron phosphate, alkaline, dry batteries, nickel hydrogen, nickel cadmium, button batteries testing Energy saving: you can set the power-off time for this battery tester, 5-60min; Or the tester will automatically shut off after a long time without any operation or no input Two displaying mode, simple mode-showing internal resistance and voltage; sorting mode-showing the internal resistance, voltage and differnent batteries' classification and counting