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£560.30 inc. VAT
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The APC RBC24 is one of those “boring but crucial” buys: if your UPS is telling you the battery is end-of-life, replacing it with the correct OEM cartridge is usually the safest way to get your runtime and reliability back. At £462.71 ex‑VAT it’s not cheap, but for a UK business relying on a UPS for clean shutdowns and continuity, the cost is often easier to swallow than the risk of downtime or data loss. Also, using the right APC replacement reduces the chances of compatibility headaches and avoids the kind of “it worked for a bit” failures you sometimes get with cheaper third-party alternatives.
Who should buy it? If you’ve got an APC UPS that takes the RBC24 and you need predictable performance—server rooms, comms gear, CCTV, or any environment where an outage is genuinely painful—this is the sensible, low-drama option. Who should think twice? If the UPS is already old, frequently alarms, or you’re near a planned refresh, you might be better off putting that money into replacement rather than batteries. In short: buy the cartridge if you’re keeping the UPS in service; don’t buy it if you’re effectively replacing the whole system soon.

APC
APC Smart-UPS Lithium Ion - UPS (rack-mountable) - line interactive, 8x IEC C13, 1x IEC C19, SmartConnect+SmartSlot, AVR, LCD, with network management card - AC 220/230/240 V - 2700 Watt - 3000 VA - USB, serial, RJ-45 - output connectors: 9 - 2U - black with silver front bezel

APC
APC Easy UPS BV BV500I - UPS - AC 230 V - 300 Watt - 500 VA - output connectors: 6

ATEN
ATEN Professional OL3000HV - UPS (rack-mountable / external) - AC 220/230/240 V - 3000 Watt - 3000 VA - 9 Ah - RS-232, USB - output connectors: 9 - 2U

APC
APC Smart-UPS SRT 1000VA - UPS (rack-mountable / external) - AC 230 V - 1000 Watt - 1000 VA - RS-232, USB - output connectors: 6 - PFC - black
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