Weize 12V 9AH Rechargeable SLA Battery For APC UPS Computer Backup Power (BX1300LCD), APC Back-UPS NS 1250, 2 PACK

I have had these batteries for 2 years now in a kids rideable jeep, and still working just fine. Holds a great load. Lasts a long time. Kids ride the jeep alot so they get there use.

These last about two years

EDIT*** The two new sets of batteries came, this time in 5 days. They wouldn't fit in one of the UPS's without a scary amount force. So I didn't even try it the way they came. I noticed there were some little raised L shaped feet on each corner of the bottoms of each battery. I used an exacto knife and shaved them off. There's no need for those feet inside the CyberPower UPS. They weren't on the originals. They fit more easily after that. I still don't understand why CyberPower made the space in the UPS so small. I had a really hard time removing the original batteries because of that tight fit. These new ones now fit a tiny bit better than the originals. Another thing to note is they are about a quarter of an inch shorter than the original batteries and a tiny bit taller. So when you put them together in pairs, there will be a very tiny little bit of offset in the depth. This is not a problem at all. One other thing to note, the cases and face plates on my CP1500PFCLCD UPS's are a little bit older styled than the current ones that are listed by CyberPower as the same model. The power buttons on mine are above the display and the three settings buttons are below the display. Mine has two USB A ports while the newer one has one USB A and one USB C port. Maybe the battery compartment in the newer styled ones provides a little bit more room than what's in my older styled ones. I do see that other than the USB ports, the specs for the older and newer UPS's are the same and the replacement batteries they sell for them are the same spec as well. Moving on from fit, I have a total of three of these UPS's and I've now replaced all of their old dead batteries with these WEIZE 12V 9Ah batteries. All of the batteries came fully charged (around 12.5 Volts) which is great. I tested their performance after leaving the UPS's plugged into the wall outlets overnight even though they came fully charged. Then I unplugged them from the wall outlets and watched the time remaining. I have plugged into the UPS's (a router in one, a satellite router in another, and the last UPS used to provide backup power for a desktop computer for work, now it's backup for an OLED TV and vSeeBox) Anyway, after unplugging the UPS's from the wall, the time remaining as those appliances ran for a while was perfect based on the wattage draws for each appliance. So the batteries perform perfectly in the UPS's. A+++++ Original review*** Delivery took 13 days. But for the quality and price I can wait a few extra days for delivery. Nothing to do with the batteries, but why did CyberPower make the opening for the batteries in the CP1500PFCLCD UPS so frigging tight???????? The original batteries fit extremely tight in the compartment and so did these replacements. The packaging the batteries came in was pretty awesome. Order some and you'll see what I mean. Highly recommended.

For a UPS, these batteries are expected to last 3-5 years. These lasted 3 years and then dropped to ~11% capacity. I put 12 of them into 3 parallel chains of 4 as that is what my UPS and associated battery expansion box took. So to get down to ~11% of rated capacity, all 3 chains must have gone bad. I still give it 4 stars. The reason being since installing the batteries, I have experienced a number of long duration power outages causing the batteries to drain down to 0% and the UPS to reach low voltage cut-off. Some of the outages I was around to hook up a generator, but that still took some time to setup, warm up the generator, and then have it take the load. And the bad thing about all of this is I live in the middle of a large city that doesn't experience too much extreme weather, granted it has been getting worse as of late. So I give these batteries a pass this time due to a combination of a crappy utility and global climate change causing things to go from basically no extreme weather to periodic extreme weather, leading to these batteries taking a lot more use and abuse than what I used to experience when I regularly saw my UPS batteries last longer. I am still trying a different brand to see if it works out any better, but as extreme weather isn't getting any better and the utility is getting hit with more and more lawsuits, I doubt better lead acid batteries will actually last any longer out here. After the next set though, it will be getting to UPS replacement time anyways, so probably swap out the UPS with an all-in-one solar inverter and an LFP battery, especially as LFP batteries can take a lot of use and abuse and that is exactly what is needed as the planet edges towards being uninhabitable.

Did the job, fit well and the cost was reasonable.