APC UPS External Battery Pack For APC Smart-UPS X-Series, 864 Vah, SMX48RMBP2U

Rack/Tower convertible - Protects the initial investment in the UPS when migrating from tower to rack-mount environment. Hot-swappable batteries - Ensures clean, uninterrupted power to protected equipment while batteries are being replaced Intelligent battery management - Maximizes battery performance, life, and reliability through intelligent, precision charging. The external battery pack helps to ensure your computer or other electronics remain powered during power failures or interruptions. Compatible with APC Smart-UPS X-Series, including SMX1000 SMX1500RM2U SMX1500RM2UNC SMX750. 5 year maximum battery life and minimum 3 year battery life. This product is heavy and/or oversized and may need more than one person to handle.