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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 RBC43 UPS Replacement Battery Cartridge


The APC Replacement Battery Cartridge #43 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.

Availability: 45 units In Stock

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APC Replacement Battery Cartridge #43
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APC Replacement Battery Cartridge #43 is rated4.25 out of5 by8.
Rated 5 out of 5 by from replacement battery cartridgeAwesome! fast response, great delivery, and replacement process painless and easy. cartridges performing excellently.
Date published: 2010-04-12T00:00:00-04:00
Rated 5 out of 5 by from Very good serviceReceived replacement cartridge promptly. Installation was quickly accomplished following enclosed instructions. Very pleased with product.
Date published: 2010-06-01T00:00:00-04:00
Rated 5 out of 5 by from AwesomeFast delivery and easy installation!! Put it in and had the old one ready for delivery in 10 minutes. This is our second one and gladly recommend it.
Date published: 2011-07-22T00:00:00-04:00
Rated 5 out of 5 by from With the premiumI've purchased refurbished batteries before, and they never last as long or work as well as the APC brand. It's definitely worth the higher price. Installation is simple and quick.
Date published: 2012-01-09T00:00:00-05:00
Rated 5 out of 5 by from it worksSecond order got the correct battery. Order showed up but now return mailing for battery disposal. They brag about this when calling in on hold as to why purchase from APC but when you do they forget that part. I you want to dispose of the battery you must call an E-waste company or deliver yourself or you could make several phone calls and e-mails to APC and get the UPS return label. So if the deal is better somewhere else you might want to take it.
Date published: 2015-05-19T00:00:00-04:00
Rated 5 out of 5 by from Great UPS BatteryLove the battery. Not much else to say. Holds its charge, battery life is amazing and it is a quality product.
Date published: 2018-09-17T00:00:00-04:00
Rated 5 out of 5 by from Reliable Replacement ProductsWe've sold many of these over the years and can't recall any complaints about the product quality. 3-4 years on these seem more than likely based on time between orders. Can't imaging wanting to go with non-APC on something like this - whatever you pay is worth it for peace-of-mind in my book!
Date published: 2020-01-23T00:00:00-05:00
Rated 5 out of 5 by from What is it?I am trying to get batteries. Everything I read in the webpage is for batteries. The picture is for a battery cartridge that hold 4 batteries. I severely hate confusion and stupidity. If it is a battery then I should see RBC43 batteries itself.
Date published: 2021-06-02T00:00:00-04:00