- VoIP & Phone Systems
How to Set Up Quality of Service (QoS) for VoIP
15 Sep, 2025

£1014.35 inc. VAT
AI-generated summary
This is one of those “quietly important” purchases: an APC 48V sealed lead-acid battery pack meant to keep an APC UPS running when the original cells are tired. At £845.10 ex-VAT it’s not cheap, but in the B2B world you’re paying for reliability and compatibility rather than novelty. If you already own an APC UPS that takes this style of battery, it’s a sensible, low-drama way to restore runtime and avoid playing games with off-brand packs that may not fit cleanly or behave the same under load.
That said, I wouldn’t buy it just because “we need a UPS battery.” First, confirm it matches your exact UPS model and battery configuration—mix-ups here are where budgets go to die. Also consider whether you’re buying time before a bigger UPS refresh: SLA packs have a finite service life, and if your UPS itself is old or frequently in poor battery health, replacing just the battery can be a short-term fix. Bottom line: buy it if it’s the correct replacement for an existing APC 48V setup and you want dependable continuity for network/rack gear; hesitate if you’re not sure about compatibility or if the UPS unit is already showing age.

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