UPS 9Ah, 24VDC VRLA Battery Replacement APCRBC124 Compatible with APC UPS Models BR1000G, BX1350M, BN1350G, BX1000G, BX1300G.…

Quick and easy install. Worked great.

My APC kept randomly resetting and killing power to everything, checked and battery icon was flashing with no bars. Everything pointed to it being EoL, so ordered this model as a replacement. When it came in, pulled out the old RBC123 and put this one in and powered on. It took it a minute to calibrate but then came back with full charge and showing 12hrs of battery life for the items I had connected. No more resets or issues since and am extremely pleased with this replacement. I would definitely recommend it.

I'm extremely happy with this battery - it took maybe 30 seconds, top, to replace the battery in my BackUPS 1500 that finally died after nearly 5 years. I didn't have a lot of power losses, but something tells me there were enough brownouts or dirty power events that caused the UPS to kick on that it was always doing a small amount of work.The price is nearly half of the OEM cost as of the time of this review (February 2025), and the capacity is definitely as much, if not more, than OEM. I'll be purchasing a second battery for my other UPS, and may keep a spare on hand just in case!

Nice backup battery replacement

This battery package slid right into the underside of my UPS and looked just like the replacement OEM one that was at least 3 years old it replaced.It immediately started working and the display was showing time left to dead and everything else just like the old one when it was good.I have two large tower boxes hooked up, not low power PC's, and they're drawing around 275 watts and it has 16 to 17 minutes run time.At 200 watts it's about half hour run time.It took about 5 minutes to swap the battery, it took more time to unplug everything so I could slide it out enough to put it on its side to pull the battery cover and slide the dead one out and the new one in.The big question will be how long it actually lasts and time will tell but they average about 3 to 5 years and a quality built battery.You can't beat it for the price considering it's ready to drop in outa the box so as long as I get decent life out of it it's great. I will try to update if anything changes.

Exactly what I needed, my batteries had died after saving my PCs life in a thunderstorm while I was not home, I arrived home turned my system on and long annoying beep of death and F02 error (battery failure) this was the original battery from 2016 and had seen it's end long ago but kept ticking until that day.Now as for the replacement, it is exactly the same as the original battery pack, my only complaint amd this is more on Amazon than the seller , the delivery driver left it out in the rain and when I got home the battery was soaked, thankfully I am used to amazon failing me and I dried them off using compressed air and decicant powder and my UPS is back up and running.Powerchute shows 100% charge 26.7v with 87 minutes runtime :)

The RBC123 (7Ah) battery that came with my APC BR1300G purchased in March 2020 failed after exactly five years in March 2025, when the UPS began audibly switching into charge mode every few seconds while the battery heated up the entire chassis (only 8 minutes of estimated run time remaining with 100% charge for a 30W load). I ordered this SafeAMP RBC124 (9Ah) equivalent battery for next day delivery and had no trouble hot-swapping by simply tipping the UPS on its side, removing the bottom cover, pulling out (thus unplugging) the old battery, and pushing (thus plugging) in the new battery (the red sticker says, "LIFT AND PULL TABS" but should not be removed as it and the green sticker on the other side hold the two modules together). After 12 hours with the new battery, the UPS still showed only 8 minutes of estimated run time remaining with 100% charge for a 30W load, so I performed the calibration procedure clearly documented on the APC web site (FAQ answer FA284198). The PowerChute software is not necessary (or even available for MacOS). Here are the steps I followed using incandescent light bulbs for a stable load:1. Disconnect the Ethernet cable so the computer won't interfere as the battery gets low.2. Disconnect all critical loads from the UPS since they will lose power and shut down ungracefully when the battery is depleted.3. Attach at least a 30% load that does not fluctuate more than +/- 5%. THIS IS IMPORTANT!4. Unplug the UPS from utility power so it operates on only battery power.5. Allow the UPS to run on battery power until it turns off completely (the UPS fan will switch off after the load drops).***NOTE: If the stable load is not at least 30% or if the procedure is ended before the UPS drops the load, it will not calibrate properly!6. Disconnect the stable load, reconnect the critical loads, plug the UPS back into the wall outlet and allow it to recharge.While recalibrating, the UPS ran far longer than 8 minutes before shutting off (since the UPS based that estimate on the old, failed battery), and after 12 hours it showed 100% charge with estimated time remaining consistent with the Run Time Graph on the APC web site page for the BR1300G. Success!Some reviews claim that this battery arrived dead or defective, so perhaps steps to recalibrate the UPS should be included in the package for awareness and to avoid unnecessary returns...

perfect fit