ELD 13710 programmable dc electronic load .Remote controlled by computer .Battery ... groups, 32 steps each groupBattery testing0.01mAH~4000AHInterfaceRS232, RS485, USB(option)ProtectionOver-voltage, over-current, over-power, over-heat ... adapter, RS485 adapter, USB adapter, Mounting rackPower source115V/230VAC±15%, 47~63HzDimensions(WxHxD)225x105x340mmWeight5kg ELD 13710 programmable dc electronic load