APC Back-UPS CS 500VA Tower UPS
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APC Back-UPS CS 500VA Tower UPS

Item # 726143 OfficeMax # 22545006
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2-Year Product Replacement Plan, Includes Coverage For Accidental Drops & Spills, $100-$149.99
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  • Free delivery : Estimated delivery 3-5 business days
Pricing, Assortment and Availability

The Back-UPS CS BK500BLK offers our best value for protecting your business and office computer systems. It provides battery backup power that allows you to work through short and medium length power outages.

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Item # 726143 
Manufacturer # 073041  
Load Capacity (Watt) 300 W
Backup/Run Time (Full Load) 3 Minute
Maximum Battery Recharge Time 8 Hour
Product Series CS
height 6.5"
Additional Information Lifetime data recovery warranty; Serial Connectivity; USB Connectivity
Certifications & Standards UL 1449, FCC Part 15 Class B, Industry Canada, UL 1778, cUL Listed
Output Voltage 120 V AC
battery type Sealed Lead Acid
Product Line Back-UPS
width 3.6"
package contents Back-UPS CS 500VA Tower UPS; CD with software; Cord Management Straps; USB Cable; User Manual
depth 11.2"
Product Name Back-UPS CS 500VA Tower UPS
manufacturer American Power Conversion Corp
Plug/Connector Type NEMA 5-15P
weight 13.80 lb
brand name APC
Input Voltage 110 V AC
Battery Characteristics Spill-proof, Maintenance-free
Backup/Run Time (Half Load) 15 Minute
Dataline Protection RJ-11
Load Capacity (VA) 500 VA
Product Type Standby UPS
form factor Tower
Receptacles 3 x NEMA 5-15R
warranty length 3-year limited

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Rated 4.8 out of 5�by 10 reviewers.
Rated 4 out of 5�by BK500BLK We buy APC products for their reliability. However they have changed from using right angle plug to straight plugs. Now I have more trouble with bad connections at the outlet than power failures because it is too easy to accidentally knock the plug out. February 23, 2015
Rated 5 out of 5�by Once Again! Once again, this product is just what I need! Replacing the old one was simple, and the fact that I could recycle the old one so easily was wonderful! Thank you! July 21, 2014
Rated 5 out of 5�by Excellent UPS This is a nice compact unit. I like having the outlets on the back of the unit. One of my UPS units has the outlets on the top and they get dusty. I will replace it with one of these when the battery fails. October 25, 2012
Rated 5 out of 5�by Trust No Other I have used APC Back-UPS for over 10 years with various home computers. The batteries do need to be changed at some point around 3-4 years. APC is up front about this. My current Back-UPS CS 500 sits next to my Dell Inspiron quad PC, filters line problems, self-tests, powers after commercial power is removed, and even shuts down my PC gracefully via supplied USP cable according to the params that I set. A PC application lets you initiate a test, review the test log, review power levels and more. It's well worth the price to protect an expensive PC like the one I use. January 30, 2011
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2 years, 2 months ago
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West Columbia, SC, USA
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Hello. Thank you for your inquiry. The CS 500 uses replacement battery part number RBC2.
2 years, 2 months ago
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From the Manufacturer|Powered by Answers™

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  • Back-UPS BK500

    • Backup power for computers, networking devices, gaming systems, and more
    • Surge protection for electronics and phone/data lines
    • Three of six outlets provide battery backup
    • ENERGY STAR certified
    • $100,000 equipment protection policy
    • Three-year limited warranty

Product Features

  • Backup Power for Important Devices

    The APC by Schneider Electric Back-UPS BK350 keeps home and office electronics running in the event of a power outage. Unexpected outages can damage computer, gaming, and networking equipment while causing the loss of data and work productivity. The APC Back-UPS BK350 provides battery backup power so you can safely shut down your devices or work right through short outages. The BK350 includes PowerChute power and energy management software to maximize your protection and prevent data corruption. This Back-UPS unit offers six surge protected outlets, three of which provide battery backup, and a 210-watt/350-volt ampere output power capacity.

    Protection from Dangerous Surges and Spikes

    The APC Back-UPS BK500 shields devices from sudden voltage surges that can damage sensitive electronic equipment. Additionally, the BK500 also protects phones, faxes, and modems from dangerous "backdoor" surges and spikes travelling along data lines. Just route the phone or data line through your BK350 to protect your devices from lightning, surges and spikes.

    Auto-Shutdown Software Included

    APC PowerChute Personal Edition power and energy management software is included. PowerChute prevents data corruption by automatically saving files and shutting down your system in an extended power outage or low-battery condition. PowerChute monitors and displays energy usage and reduces costs via customized energy management planning. Connect the included USB cable to your computer to easily use the software.
  • ENERGY STAR Certified for Energy Efficiency

    The BK500 has earned the ENERGY STAR rating for efficient operation and its ability to help realize lower energy costs.

    Warranty and Equipment Protection Policy

    This Back-UPS is covered by a three-year limited warranty. This product also comes with a lifetime equipment protection policy of up to $100,000. APC will repair or replace office equipment that sustains surge-related damage while properly connected to a registered APC Back-UPS unit.

    Package Contents

    APC Back-UPS BK500 unit with 6-foot power cord, PowerChute Personal Edition software CD, cord management straps, USB cable, and user manual.

Back-UPS Product Selector

Technical Specifications

  • Output

    • Output Power Capacity: 300 Watts / 500 VA
    • Max Configurable Power: 300 Watts / 500 VA
    • Nominal Ouput Voltage: 120V
    • Outpout Frequency (sync to mains): 50/60Hz +/- 3Hz
    • Topology: Standby
    • Waveform Type: Stepped approximation to a sinewave
    • Output Connections: (3) NEMA 5-15R (Battery Backup), (3) NEMA 5-15R (Surge Protection)
  • Input

    • Nominal Input Voltage: 120V
    • Input Frequency: 50/60Hz +/- 3Hz (auto sensing)
    • Input Connections: NEMA 5-15P
    • Cord Length: 1.83 meters
    • Input Voltage Range for Main Operations: 98 - 140V
  • Batteries & Runtime

    • Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof
    • Typical Recharge Time1 : 16 hour(s)
    • RBC Quantity: 1
  • Communications & Management

    • Interface Port(s): USB
    • Control Panel: LED status display with On Line : On Battery : Replace Battery and Overload indicators
    • Audible Alarm: Alarm when on battery : distinctive low battery alarm : overload continuous tone alarm
  • Surge Protection & Filtering

    • Surge Energy Rating: 480 Joules
    • Filtering: Full time multi-pole noise filtering : 5% IEEE surge let-through : zero clamping response time : meets UL 1449
    • Data Line Protection: Analog phone line for phone/fax/modem/DSL (RJ-11 connector)
  • Physical

    • Maximum Height: 6.50 in
    • Maximum Width: 3.60 in
    • Maximum Depth: 11.20 in
    • Net Weight: 13.80 lbs
    • Shipping Weight: 15.30 lbs
    • Shipping Height: 10.35 in
    • Shipping Width: 6.89 in
    • Shipping Depth: 14.06 in
    • Color: Beige
  • Conformance

    • Regulatory Approvals: cUL Listed, California (CEC) Battery Charger, ENERGY STAR (USA), FCC Part 15 Class B, Industry Canada, UL 1778 
  • Sustainable Offer Status

    • RoHS: Compliant
    • REACH: Contains no SVCHCs
  1. 1 The time to recharge to 90% of full battery capacity following a discharge to shutdown using a load rated for 1/2 the full load rating of the UPS.
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