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Quick tech specs
  • Genuine APC replacement batteries are tested and certified for compatibility to restore UPS performance to the original specifications
  • Check APC UPS model's specifications to confirm compatibility with this APC battery
  • Guaranteed battery compatibility with APC UPS devices
  • 2 year APC warranty
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APC RBC6 UPS Replacement Battery Cartridge


The APC Replacement Battery Cartridge #6 fits select APC Smart-UPS and Back-UPS models, restoring power back-up capacity for home offices, small businesses, and IT departments.



Guaranteed Compatibility with APC UPS Systems


Each APC replacement battery cartridge is tested and approved by APC to restore the performance of UPS systems to the original operating specifications. This RBC conforms to safety regulations and maintains original UPS specifications and protection policies. The battery has an expected life of three to five years.



Choose Genuine APC Replacement Battery Cartridges for Superior Performance


APC demands the highest quality from its battery suppliers, monitors the health of batteries while in storage, and matches the specifications of the UPS to the batteries it uses.



Ships Assembled


The APC battery ships fully assembled, making installation simple.

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 CDW cannot guarantee an in-stock date. 
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APC Replacement Battery Cartridge #6
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APC Replacement Battery Cartridge #6 is rated 4.57 out of 5 by 14.
Rated 5 out of 5 by from Easy to install This unit works beautifully, and was super easy to install. It's very reliable and does last a long time.
Date published: 2010-07-29T00:00:00-04:00
Rated 5 out of 5 by from Criticle Usually we have a spare battery on premises, but due to some administrative changes the property count was overlooked and when the low battery warning was sounded we were without a replacement. Once it was ordered it took several days for the replacement battery to arrive, which left us in a precarious position, but the problem has been solved now and we thank your company for saving the day.
Date published: 2013-06-11T00:00:00-04:00
Rated 5 out of 5 by from Good purchase The battery works well. The death of the previous battery lead me to a problem that I have been troublshooting for six months. My server kept shutting down randomly. The APC UPS had a loose connection inside it that was causing the server shut down. I kept looking at the server to for the problem but the issue was in the UPS. I never would have found the issue had the battery not failed.
Date published: 2010-02-19T00:00:00-05:00
Rated 5 out of 5 by from Battery Replacement Product came quickly and packed properly. Battery assembly was easily re-installed and worked perfectly.
Date published: 2012-02-03T00:00:00-05:00
Rated 5 out of 5 by from RBC recycling APC no longer provides a return label to recycle the RBC. This reduces the value of purchasing batteries from APC. Also, the newer APC UPS units do not reliably operate on standby generator power - they have no provision to operate with less than perfect frequency power. When the battery gets low, the APC UPS shuts down, and does NOT pass power.
Date published: 2010-02-27T00:00:00-05:00
Rated 5 out of 5 by from Replacement battery Fast shipment, easily installed and works perfectly.
Date published: 2012-08-10T00:00:00-04:00
Rated 5 out of 5 by from Useful product Although finding the appropriate replacement cartridge wasn't as straightforward as it might be, once the product was ordered, the delivery proceeded like clockwork with lots of progress notifications. I was pleasantly surprised when I installed the battery only to find that it was already mostly charged.
Date published: 2015-06-06T00:00:00-04:00
Rated 5 out of 5 by from Still running! My UPS APC Back-Ups (I have five) have been protecting my computer for more than fifteen years now. Even though there are newer models, I don't need any better than I have. I am very pleased to know that APC provides support and batteries even for what I assume are "legacy" UPS. The ease of finding the correct battery and sending the expired battery back to APC had always been a real plus for me as I am disabled and don't drive. In an era when "just buy a new one" seems to be the usual corporate approach, I appreciate APC.
Date published: 2010-04-14T00:00:00-04:00
Rated 5 out of 5 by from great choice This is a cheaper alternative to replacing the unit itself. Easy installation. popular choice among our customers.
Date published: 2017-05-08T00:00:00-04:00
Rated 5 out of 5 by from Battery Replacement for Back UPS Pro 1000 This is the second replacement battery I have purchased for my Back UPS Pro. The batteries have long life and when they're exhausted, there's nothing easier than contacting APC to get a new one. Replacement service is expedited, and APC even includes provision for sending the old battery to a recycling center, free of charge. I highly recommend using APC.
Date published: 2010-02-21T00:00:00-05:00
Rated 5 out of 5 by from APC Replacement Battery Our Corp. recently purchesed an APC battery replacement for our main server and it is great. We will continue to do business with APC. Delivery was quick, price was right, we will be return customers for a long time...
Date published: 2011-05-26T00:00:00-04:00
Rated 5 out of 5 by from Extend The Life Of Your Smart-UPS Unit Replacing the battery on our customer's existing Smart-UPS unit was much more cost-effective than purchasing a whole new backup unit -plus the added bonus of less waste in the end. Looks like they got about 5 years on the original battery - well worth the purchase of this RBC if they can get close to that amount of life out of this one.
Date published: 2020-01-23T00:00:00-05:00
Rated 5 out of 5 by from Useful product Although finding the appropriate replacement cartridge wasn't as straightforward as it might be, once the product was ordered, the delivery proceeded like clockwork with lots of progress notifications. I was pleasantly surprised when I installed the battery only to find that it was already mostly charged.
Date published: 2015-06-07T00:00:00-04:00
Rated 5 out of 5 by from RBC recycling APC no longer provides a return label to recycle the RBC. This reduces the value of purchasing batteries from APC. Also, the newer APC UPS units do not reliably operate on standby generator power - they have no provision to operate with less than perfect frequency power. When the battery gets low, the APC UPS shuts down, and does NOT pass power.
Date published: 2010-02-28T00:00:00-05:00