APC Smart-UPS RT 48V RM Battery Pack. Battery technology: Sealed Lead Acid (VRLA), Battery voltage: 48 V. Weight: 30000 g. Colour of product: Black. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 0 - 95 %. Form factor: Rack-mount, Dimensions (WxDxH): 430 x 480 x 84.8 mm, Battery type: Maintenance-free, leakproof