APC UPS Battery Replacement, RBC48, for APC Smart-UPS SMT750, SMT750US, SUA750 and select others

Got the dreaded replace battery light and just purchased a new UPS. This unit sat around until I needed it and I purchased this battery. Got my old UPS going again.

I purchased this unit to replace the original batteries in my APC Smart UPS 750 that I've had for many years. The replacement batteries were easy to install and resolved the problem immediately. Unfortunately, the replacement batteries failed about a year in a half later. (Purchased September 2021, failed May 2023.) But, I called APC and they sent me a replacement under warranty with my proof of purchase from Amazon. I am very happy with that outcome, and would absolutely buy a new Smart UPS or another set of replacement batteries from APC again in the future.

fired right up. set the installation date. Keeping my system going! I recommend.

I bought this battery at the end of 11/2017 and installed it in 12/2017 to replace the same battery we had installed 4 years prior. We had a power outage last week, 3/2018, where this battery went completely dead. "Great", I thought to myself, "This is designed to keep things running in case of a power outage. I am glad I had this!" WRONG! During the power outage, the UPS went completely dead. This is not the UPS fault, as it is designed to last only so long. BUT, after the power was restored, the unit is now saying to replace the battery (it did not say that before we had the power outage). So either the battery only lasted 4 months, or after one complete discharge cycle, the battery is completely worthless. Either way, what the heck APC? Really?What is the point of buying a battery powered backup power supply if the battery is completely worthless after 1 power outage?! Or even worse, after only 4 months of service?! I would suggest going with a different brand, or depending on the frequency of your power outages, buying a generator. It would probably be cheaper in the long than having to buy a new battery after every power outage.

Perfect 1 to 1 replacement for our SMT750. Installed easily and was recognized instantly. Also qualifies you to request a free shipping label from APC to recycle your old battery properly, which is easy to do using the box this comes in.

This is the second replacement battery for my APC Smart-UPS SUA750. I bought the original APC Smart-UPS SUA750 in July 2011, first replacement battery on November 20, 2015 (53 months), last one October 16, 2020 (58 months). So the average is about 4 1/2 years.They are easy to install and you can recycle the old battery at a local store for no cost to you. Just follow the instructions with the new battery and look up the location on the Internet.All in all an easy exercise. Oh, and be careful, the battery and unit are heavy, follow the replacement instructions to avoid any shock.

After 4+ years of using an APC UPS as a backup for my pellet stove, I started getting the Replace Battery alert. I wanted the OEM APC battery but it was backordered so I tried a generic replacement. The generic was defective and couldnt power the stove fan for more than a few minutes. The OEM could run it 45 mins.Returned the generic. Popped in the APC OEM into the UPC in less than 2 minutes and UPS now runs perfectly again.

The title says it all. Had almost no outages during that time, so the battery was not strained or abused. 2 years of battery life is really mediocre. Will try another brand.