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Item#: 9SIA9H53UN0204

CyberPower Standby Series CP350SLG 350 VA 255 w 6 Outlets UPS

Ships from Canada. Most customers receive within 4-10 days.

Sold and Shipped by Westpac Technology a-seller

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • 350VA / 255W Simulated Sine Wave UPS
  • 6 Outlets
  • RJ11 Protection
  • Full-time Surge Protection and Battery Backup
  • GreenPower UPS
  • Compact Desktop Form Factor
  • Standby Topology

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
The CP350SLG Battery Backup

350VA / 255 Watts Capacity
810 Joules of Surge Protection
6 Surge Protected Outlets
(3 with Battery Backup)
Up to 23 Minutes of Runtime @ 50W
Phone Line Connection Surge Protection

CyberPower CP350SLG Standby UPS System

Offering battery backup protection for home computers and home networks.

Why You Need It:
When power goes out for even a second it can result in data loss and hardware damage which can shorten equipment life expectancy. This battery backup unit provides sufficient emergency runtime power to allow for safe closure of open files and proper shut down of electronics when an outage occurs. In addition, it safeguards electronics from commonly occurring power surges caused by storms, activity on the power grid and high-powered equipment turning on and off.

Typical Use

Provides basic backup power and surge protection for home and small office computers as well as wired and wireless network routers and modems. Safeguards valuable documents, photos, videos and music files from loss or damage due to power surges and uncontrolled equipment shutdown caused by power interruptions.


Surge Protection — Prevents damage to equipment from surges and spikes, including lightning, and also safeguards telephone and fax equipment from power surges traveling through unprotected phone lines (RJ11). The amount of energy a surge protector can absorb is measured in joules. A higher joule rating means more protection.

ENERGY STAR Qualified — Recognized by the US Environmental Protection Agency (EPA) as one of the most energy efficient battery backup units available.

Additional Features

Energy-Saving Technology — GreenPower UPS High-Efficiency Design saves energy costs by reducing power consumption and heat buildup.

Versatile Design — Compact unit stands upright, lies flat or hangs on a wall.

Noise Filtering — Advanced EMFI/RFI noise filtering coils reduce electromagnetic and radio frequency interference that cause disruptive humming and static.

Wide-Spaced Outlets — Large transformer block-style plugs can be connected without obstructing other outlets.

Building Wiring Fault Indicator — LED status light on battery backup unit indicates wall outlet wiring problems, such as improper grounding, that could inhibit surge protection or cause shocks. When lit, a professional electrician should be contacted to correct the problem.

Audible Alarms — Distinctive tones sound when the backup unit is on battery power, overloaded or low on power. The alarm can be silenced if desired.

Product Support

Lifetime Connected Equipment Protection — Covers up to $75,000 on any properly connected equipment damaged by a power surge caused by storms.

Free Technical Support — Assists customers with any product, installation, or warranty concerns at no added cost.

Estimated Runtimes for the CP350SLG Battery Backup

50 Watts 100 Watts 200 Watts
23 Minutes 9 Minutes 3 Minutes


Power Protection Type
350VAC / 255 Watts
Total Outlets
6 Outlets, 3 Battery + Surge & 3 Surge Only
Outlet Type
3-Prong Standard - NEMA 5-15R
Cord Length
5 Feet (1.52m)
UPS Topology
Surge Suppression
810 Joules
Phone Protection
1-in, 1-out
Energy-Saving Technology
GreenPower UPS High-Efficiency Design
Input Voltage Compatibility
Frequency Compatibility
On Battery Waveform
Simulated Sine Wave
On Battery Voltage
120VAC ± 5%
On Battery Frequency
50/60Hz ± 1%
Battery Size & Type
Rechargeable 12V/3.6AH Sealed Lead Acid
Dimensions (W x H x D)
7.1 x 4.3 x 3.2" (25 x 15.3 x 7.6cm)
3.5lbs (1.59kg)

What's Included in the Box

(1) CP350SLG Battery Backup UPS, (1) User manual, (1) Telephone cable, and (1) Warranty registration card

Learn more about the CyberPower CP350SLG

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details
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  • Used - Acceptable : This means that the product shows clear signs of use, cosmetic defect, and may be missing minor accessories and manual, but remain in working condition. Product does not come with warranty unless stated otherwise in product description. Functionality issues beyond signs of use should be disclosed in product description.
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