Keep essential systems online longer when utility power drops. The Eaton BP72RT external 72V battery pack is designed for SmartOnline UPS deployments that need more runtime than the base chassis can provide. In rack or tower environments, this 2U module adds battery capacity without forcing a redesign of the power stack. For infrastructure teams, the value is straightforward: more time to ride through outages, more time to complete graceful shutdowns, and more time to protect servers, storage, and network gear from abrupt power loss. The 72V battery architecture is built to match compatible Eaton Tripp Lite SmartOnline systems, preserving the electrical profile those UPS platforms expect. This is the kind of accessory that earns its place in a serious power plan. Instead of oversizing the UPS itself, you can extend runtime with a purpose-built external battery module and keep the deployment aligned to the actual load profile. The 2U form factor supports clean integration in standard rack environments, while the rack/tower design gives flexibility across data closets, branch offices, and edge rooms. Choose the BP72RT when uptime is measured in minutes that matter. It is a practical way to add resilience to protected workloads without changing the core UPS architecture.