APC Smart-UPS RM 2U XL 24V Battery Pack Black. Battery technology: Sealed Lead Acid (VRLA), Battery voltage: 12 V. Weight: 30000 g. Colour of product: Black. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 0 - 95 %. Dimensions (WxDxH): 430 x 480 x 85.6 mm