Casil 12v 7.2ah Rechargeable Battery - APC UPS Replacement Battery for SMT750US, SUA750, SMT750, (RBC48), UPS Batteries, 12V 7.2Ah Deep Cycle Batteries with F2 Terminal 2 Pack

I am so dumb - My apologies for the previous review. I am rectifying it now:They work fine. The issue was something else on both UPS units!I also have these installed in other unit and it works very well.OLD REVIEW: None of them worked. Failed after less than 1 month of use.Now i can't return them

My UPS stopped workingwould not hold any loadPulled the batteries and discovered they were deadOrdered these and swapped them in.They fit and are working as expected

I don't know how well this works, but probably about as well as the cheap no-name Chinese batteries that APC now sells for 3-4 times the price as their "official" batteries. My last official APC battery purchase resulted in 11 months of light-duty service before the UPS started rejecting them. If these cheapo Casil batteries can make it past 11 months, they will be better than the proper APC batteries. I'll try to come back and report on them in just under a year.edit a couple months later:DOESN'T HOLD A CHARGE! What is going on? When I try to calibrate my UPS, the battery has about 10 seconds of charge. What a piece of junk. As bad and expensive as the APC "official" batteries are, this is somehow much worse. Don't waste your money.

I've ordered this batteries to refresh my 6 years old APC-UPS SMT750 which was beeping constantly because of completely degraded batteries. I received this batteries fully charged and without any leakage or other damages. Considering the fact that they were shipped for at lease 24 hrs, their 12.85V respectively 12.84V must have been a real charge and not some "let's charge them short before shipping". Because of SOC and assuming there were not charged additionally before shipping this cells must be pretty new. I did not test capacity, but there seem to be some issues: according to APC website my UPS model with genuine batteries should have a run time of 1hr4min @ 80watt load. But with this new batteries and after installation & calibration the unit shows only 2760 seconds (46min). This is only ~72% of what it should be, even less considering claimed 7.2Ah of this batteries compared to 7Ah of APC batteries! This makes me assume that the claimed 7.2Ah of this batteries are not accurate or something else is wrong. I also know that APC's claim of over an hour runtime is more like lab/advertising data and probably not real-life data. To be fair I gave 5 stars since you need to go through full capacity test for each battery to know the real capacity. I wasn't able to do this, but honestly for $/Wh price this batteries are still a good deal if they last at least 50% of genuine lifetime (in my case 6 years). Only time will tell.UPDATE: Estimated battery time in my UPS is showing 57 min. now. This is more acceptable than previous 46 minutes. I think the changing run time of my unit is an internal UPS thing and does not have anything to do with real capacity of the batteries. For now I'm very happy with this purchase. Longevity is still to find out.

Purchased for a battery backup for a computer. Works fine.

I don't have a long-term experience, but these batteries fit perfectly into my APC SmartUPS 750. I had to swap the connector cables and tape them together, but not a huge deal, especially for the cost savings.

I bought this pair of batteries on September 1 2022 and the last time I tested them in January of 2024 they held up but today on June 16, 2024 they are dead. This is with 5 minute tests 2-4 times a year since they were delivered. I have used many brands of 7.2 ah SLA battery in my backup units over the years under the same circumstances that have held up at least 3 years. I see this is not the case with Casil batteries and I'll have to look elsewhere this time. I expected these to last another 6 months minimum.

Perfect replacement battery with very easy installation.