... steps each groupBattery testing0.01mAH~4000AHInterfaceRS232, RS485, USB(option)ProtectionOver-voltage, over-current, over-power ... over-heat and reverse connection of polarities protectionSoftwareElectronic load software, VB, VC++, DELPHI, LABVIEWStandard accessoriesUser's ... bars, software CDOption accessoriesRS232 adapter, RS485 adapter, USB adapter, Mounting rackPower source115V/230VAC±15%, 47~ ...