APC Smart-UPS On-Line SRT Battery Pack for 2.2kVA Extended runtime model 72V

Product Overview

AI-generated summary

If you’re already running an APC Smart‑UPS SRT Online and you need longer runtime, this battery pack is the straightforward, low-drama option. The big “pro” is compatibility: it’s designed to slot into the SRT ecosystem so you’re not guessing about voltages, charger behaviour, or runtime curves. At **£845 ex‑VAT**, it’s not cheap, but battery upgrades often never are—what you’re really paying for is predictable performance and less risk during a business-critical outage. For UK SMEs and offices that want graceful shutdown or continuity (comms gear, servers, storage, a small ops suite), this kind of extended runtime pack is usually good value versus replacing expensive equipment after a bad outage.

That said, I’d only buy it if you’ve actually sized your runtime need. Many teams buy “just to be safe” and end up paying for runtime they don’t realistically use—especially if your load is light or you’re already on generators/managed failover. Also, double-check your model compatibility (the 72V SRT extended runtime line is specific), and be honest about battery lifecycle planning: these packs aren’t set-and-forget forever, so you’ll be budgeting for periodic replacement. If you’re not sure what you’ll gain in minutes under your current load, get a quick runtime estimate before pulling the trigger.