Description APC BX2000 (Back-UPS 2000VA Without Battery with Selectable Charger and Flooded/SMF Compatible) is line-interactive UPS without Built in Battery. You are required to connect 2 external batteries of 12V (24VDC) and need to buy them separately as it is not the part of this package. You can use 18AH to 200AH Batteries based on your backup requirement. Weight 13.4 kg Dimensions 39.2 × 14.5 × 22.0 cm Brand APC Model No. BX2000UXI No. of Batteries 2 Topology Line Interactive UPS Waveform Type Stepped approximation to a sinewave Backup Time Based on the batteries being used Output Power Capacity 1.2Kw / 2.0 KVA Builtin Battery Capacity No Batterries included In Box Accessories Input Power Cable, Manual, UPS, Warranty Card Input frequency 50/60 Hz /- 3 Hz (auto sensing) Nominal Input Voltage 230V Nominal Output Voltage 230V Warranty 2 Years Onsite Warranty