About this UPS
The CyberPower CP550SLG is a 550VA / 330W external standby UPS from CyberPower's professional power-protection range. Engineered for reliable battery backup, voltage regulation, and surge protection in home office, business, and IT environments — backed by the full CyberPower manufacturer warranty.
Currently on backorder — typically ships within 1–2 weeks.
Specifications
| Output Capacity (VA) | 550 VA |
| Output Power (Watts) | 330 W |
| Topology | Standby |
| Output Waveform | Simulated Sine Wave |
| Output Voltage | 120 VAC |
| Form Factor | External |
| Warranty | 3 Years Limited |
| Weight | 3.0 kg (6.7 lb) |
| UPC | 649532005598 |
| Manufacturer Part Number | CP550SLG |
Why order this CyberPower UPS from us?
Technical specifications
How long it'll keep your equipment up.
Manufacturer-specified runtime at typical loads. Real-world figures depend on battery age, ambient temperature, and load profile.
Estimate based on manufacturer-specified runtime curve. Real-world runtime varies with battery age, ambient temperature, and load profile.
Before you order
How do I know this UPS will run my equipment?
Add up the wattage draw of every device you'll plug in (servers, switches, monitors). The UPS's wattage rating — not VA — is the number that matters. Aim for the UPS to run at 60–70% of capacity at full load: this gives headroom for inrush current and a meaningful runtime margin. Email us your equipment list; we'll respond within one business day with sizing guidance.
What's covered by the warranty, and how long does it last?
New units carry the warranty coverage stated by the manufacturer; see the product listing or manufacturer documentation for the applicable terms. Refurbished units are covered by the 1-year UPSPLUSBATTERY warranty handled in Canada.
Can I extend runtime beyond what's shown above?
Many Smart-UPS-class models accept an external battery pack (XBP) connected to the rear battery port. If this UPS shows "Extended Runtime Capable: Yes" in the spec grid above, an XBP is supported. Compatible XBPs and the runtime gain they deliver vary by model — contact us if you don't see the right XBP in our catalogue.