Free Shipping and BOPIS


Model # BK350

Internet # 202075467

350VA UPS Battery Backup

This item has been discontinued.
The Home Depot no longer carries this specific product.

$79.99 /each




Model # BK350

Internet # 202075467

The effects of power problems include keyboard lockup, complete data loss, hardware degradation, damaged motherboards, and more, making downtime inevitable. An APC Back-UPS ES 350VA instantly switches your computer to emergency battery backup power and allows you to work through brief power outages or to shut down your system in the event of an extended outage. High-performance surge suppression protects your computer from electrical noise and damaging power surges - even lightning.

  • Battery failure notification
  • Battery-protected and surge-only outlets
  • Cold-start capable
  • Serial connectivity
  • Hot-swappable batteries
  • Data line surge protection
  • Audible alarms
  • User-replaceable batteries
  • USB connectivity
  • Transformer-block spaced outlets
  • LED status indicators

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Length (in.) 
Product Width (in.) 
Automatic Shut-off 
Battery Power Type 
Lead Acid 
Battery Size 
Color Family 
Electrical Product Type 
Electrical Cords & Cord Management 
Energy Saving 
Maximum Amperage (amps) 
Maximum Current 
Number of Batteries Included 
Number of Batteries Required 
Number of Outlets 
Number of USB Ports 
On Indicator Light 
Product Weight (oz.) 
12.5 oz 
Replaceable Battery 
Resettable circuit breaker 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
No Certifications or Listings 
Manufacturer Warranty 
2 Years 


Rated 4.5 out of 5 by 15 reviewers.
Rated 4.0 out of 5.0 by good product This is good .I am suing it for last three weeks . September 2, 2015
Rated 5.0 out of 5.0 by Excellent product APC manufactures reliably, robust products that deliver as expected. We will continue to purchase APC products and more importantly, recommend their product line. August 18, 2014
Rated 5.0 out of 5.0 by Best Yet Bought this unit to replace one we had for over 12 years. This is more compact and looks so much better. It was easy as pie to hook up and has been the best. Looking forward to another 12+ years with my APC! January 22, 2014
Rated 5.0 out of 5.0 by On March 5, 2011 a huge thunderstorm with hundreds of lightning strikes caused a main power line to fall in the alley. It sent 7200 volts into my home. Blowing out the master breaker and the complete breaker panel. I was working at the computer when I heard the blast in my house and all the lights went out except my computer. The BK350 kept everything running until I shut it off a few seconds later. It protected the Computer, Scanner, Printer, Work Light and a Radio. Two days later when our system was restored I turned on the computer. It would come on, but not stay on. I hit the reset button on BK350 and it exploded internally. I removed it and put a backup in place and the computer ran fine. It saved my computer and accessories. March 31, 2011
Rated 5.0 out of 5.0 by Works as Promissed I bought this for my daughters desktop because her last one was damaged when the power went off several times which happens in our area. This has helped save the computer many times. November 23, 2013
Rated 4.0 out of 5.0 by Adequate but expensive I assume this product will work well when needed. APC products generally do. However, I have 1 gripe and 1 kudo. Good: a paper with the model & serial numbers is taped to the side of the unit. This is handy for registration. Avoids need to remove plugs to read sticker. Bad: despite bragging that they have room for 2 transformer plugs, they do not. At least not if one is a 2 blade style. Mine covers other plugs. December 26, 2010
Rated 5.0 out of 5.0 by Excellent Product We installed 5 of these about a month ago. We had a power outage on 10 June 2010 and they worked exactly like they were supposed to. Very smooth transfer to the APC, just as smooth when power came back on in 10 minutes. We are very happy to have installed these before our usual round of power outages, they usually occur once every week or so. Keep up the good work. June 14, 2010
Rated 5.0 out of 5.0 by CS 350 I've owned mine for 4 years without issue until now. The Battery cracked, but didn't leak into the unit. Even with a cracked battery it still worked, only found the problem while cleaning the dust out. The replacement only costs $39.00 and will buy it now to keep using the unit. April 12, 2009
  • 2015-10-08T09:31:32.499-05:00
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