- VoIP & Phone Systems
VoIP Number Porting: How to Keep Your Business Phone Numbers
18 Mar, 2026







£3066.67 inc. VAT
AI-generated summary
For £2,555 ex-VAT, this APC online (double-conversion) lithium UPS is the right kind of “grown-up” protection if you’ve got mission-critical gear that really can’t tolerate even minor waveform/transfer issues—think servers, networking, core storage, and any environment where outages turn into proper downtime. The big selling point here isn’t marketing runtime claims, it’s the fact it stays online and cleans up power continuously. If you’re regularly dealing with dirty mains, generator switching, or sensitive power supplies, online UPS units tend to earn their keep. The rail kit and 4U rack/tower format also suggest it’s meant for proper IT installs rather than a back-office desktop setup.
That said, I wouldn’t buy it for “routine backup” or for small stacks of non-critical kit. Online UPSs are typically more expensive to buy (like this), and if your load is light or your environment is stable, you may be paying for capability you don’t need. Before committing, make sure the planned load and battery/runtime expectations line up with your actual business risk—also check that the replacement battery strategy and service costs suit your budget over the years. If you want a cost-effective UPS for a couple of servers and you’re mainly trying to cover clean shutdowns, a cheaper line-interactive option can be a better fit. But if you’re protecting the stuff that keeps the business running, this is the kind of UPS that’s worth the spend—so long as the load planning is tight.

APC
APC Replacement Battery Cartridge #6 - UPS battery - 1 x battery - Lead Acid - black - for P/N: SMC1500IC, SMT1000CUS, SMT1000I-AR, SMT1000IC, SUA1000I-IN, SUA1000J3W, SUA1500J3W

APC
Please contact sales for freight costs

APC
Please contact sales for freight costs

APC
APC Back-UPS 950VA - UPS - AC 230 V - 520 Watt - 950 VA - USB - output connectors: 4 - black