The APC Easy UPS On-Line external battery pack is a robust solution designed to extend the runtime of 6 kVA models, ensuring that your critical systems stay powered during outages. With a high-capacity 4800 Wh lithium-ion battery and a 48 V output, it provides reliable and efficient energy storage and power backup. This product is engineered for performance, capable of operating in a wide range of environmental conditions, from 0°C to 50°C and humidity levels of 0 to 95% (non-condensing). It comes with both RJ-11 and power cables, facilitating easy and efficient setup. Additionally, it meets several compliance standards, including IEC 62619, UKCA, and UN38.3, and is designed to fit perfectly in a 19" rack with a 3U height, making it a versatile addition to any setup requiring extended UPS runtime.