Eaton Evolution S 2500 VA RT2U Rack UPS. Netpack. Output power capacity (VA): 2500 VA, Output power: 2250 W, Power supply input frequency: 47 - 70 (50) / 56.5 - 70 (60). Battery technology: Sealed Lead Acid (VRLA), Typical backup time at half load: 17 min, Typical backup time at full load: 8 min. Colour of product: Black, Grey. Weight: 33.8 kg. Bundled software: Solution-Pac