CyberPower RB1280X2A UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah

Easy to install, but unfortunately, it wasn't the battery that was the problem in my very old CyberPower - the circuit breaker switch on the back is not "springy" any more - so I assume that is what was broken. The battery power seemed fine and I appreciate all the effort that is made to show how to install the batteries.

I have a Cyberpower 1350 AVR that is about 10 years old, and the batteries gave out years ago so I decided to invest in a replacement. After looking at all the new ones. and their prices, I decided to look for the replacement batteries. I had a little difficulty finding the replacements on Amazon, so I went to Cyberpower's website and there was a link to Amazon for the exact replacement. The package came on time and the batteries were securely packaged. Installing them was a breeze since the 2 batteries were already packaged together and I only had to take out the old batteries, slide the new ones in and connect the 2 wires to the unit (red to red and black to black). I have my laptop computer, internet gateway, copy/scan/fax machine and a paper shred machine plugged in and it shows a run time of about 80 minutes before it would stop during a power outage. I am very pleased with this purchase.

This is a copy of a review I just left for its sister model. There is no difference between them other than the connector.I have two UPSs currently in operation. One 8 years old and one four years old, both running off of their original batteries. The older one finally started complaining about its battery not holding a charge, so I needed to get a new one. This UPS was running my cable modem and firewall, so critical to my network. The other UPS was on my main system and accessory equipment. I decided to give the 4-year old a load test and it failed. Ok, guess I'm getting two new batteries now.CyberPower's battery design is two 12V batteries in series instead of in parallel. Without a lot of work to reconfigure two generic batteries, I just went ahead and bought the appropriate CyberPower units. The two batteries were well packaged and protected from shipping damage. There were no outer boxes, just the original boxes with a UPS sticker slapped on them. No biggie.Installation was quite simple. A single screw to remove in order to slide the front panel off and disconnect the cabling. The older UPS has typical 1/4" spade connectors so it was a little work to disconnect the old battery and connect the new one. The 4-year old has a nonstandard connector making generic replacements more difficult, but making reconnection with approved components a breeze.I'm glad I replaced them when I did because last week the power went out without notice for a couple hours and I could shut my computer, my NAS and firewall down correctly with time to spare. Well worth the investment!

I bought 1 of these and used it to replace the battery in my CyberPower unit. It was easy to do and now it works great once again. This saves a lot of money to just replace the batteries rather than buying a whole new unit.I used to use APC brand battery backup and AVR units, but then I realized they are pretty much a scam. With APC, you buy an expensive unit, it comes with the battery. Then 3 or 4 years down the road, the battery starts failing as you might expect. But with 2 different APC units I've had, I went on their site to buy a replacement battery, and it wasn't in stock. It appeared to be discontinued. Then I started looking up batteries for other APC units and realized that they seemingly only stocked batteries for the latest units. None of the ones for older units... you know, the ones where you would actually need a replacement. However, they offered a seemingly large discount on buying an entirely new battery backup unit, but only if you bought it off their site at their super-inflated regular price. With the discount on their regular price, it brought the price down to about what you expect off amazon or best buy or whatever. In other words, the discount was worthless. So at the end of all this, I concluded that the APC units were a scam that you wouldn't discover until many years down the road. That was about 11 years ago when I came to that final conclusion. Since then, I've stuck with CyberPower because they keep the same models of backup units in service for a very long time. The unit I bought 10 years ago (the one that takes THIS battery) is still sold on Amazon for example. And getting genuine replacement batteries for them is easy and not a ripoff.In conclusion, APC lost me as a customer 10+ years ago, and I'm not going back. It was a no-brainer to switch to any unit that didn't pull these shenanigans. So I started using CyberPower units and haven't ever regretted it. Maybe APC has changed their philosophy since then? But I'm not going to look into that matter because... who cares...