Power-Sonic PS-1290 12 Volt 9 Amp Hour Rechargeable SLA Battery (F2 Terminals)

Works as it’s new. It’s a battery. Charged to 100%. Good value compared to OEM. Longevity unknown though.

Great batteries for a fraction of the cost for what costs to go out and buying a new UPS. Had to get 2 for a 1285 geeksquad UPS. Was Quick and easy to swap out the old ones and pop these in. Recommend taking pics and writing in permanent marker on the contacts of the wires when working on the UPS when changing out to eliminate confusion, when putting them back together.Update---- 8/11/2014Just had My OTHER 1295 geeksquad UPS die in the house. I used this one on my entertainment center. Had the previous one on my computers and is still chugging along normally with these batteries in there. Bought 2 more to replace the batteries in the one that just recently bit the dust. They seem to be working well and the monitor on the program is liking them as well. Had 2 brownouts and a blackout in the time had them and was still working.Update------2/11/2015Batteries are still going strong and had 2 blackouts and a couple brownouts in the time frame of owning them. Have witnessed multiple power issues in my apartment when these were in the UPS, and they are still coming back and testing ok in the software and the hardware tests. Great batteries, and have no doubts about getting more.Update------3/5/2016Both UPS are still working without any issues and still maintaining charges. Even through multiple brown/blackouts and lighting storms. Love these batteries and will be buying and recommending these batteries to anyone who needs replacements to anyone.Update--------4/25/2017Both UPS backups are still going strong, and have had multiple blackouts and brown outs the past couple years. And these things ran my internet and TV etc for a good 2-3 hours before giving out (2 per UPS). Was using LED TV and fire TV on one, and just modem and router on another.Update---------3/2/2018Both sets of batteries are going strong on both UPS'es. They have been up for almost 4 years and have been through multiple brown outs, black outs, and TONS of dirty power running through this complex. They kick on from time to time from a flux of dirty power coming through the port.Update -----------6/1/2020Sorry, bit of a delay on the update. All things considered in all of this chaos. Had two UPS battery backups go Kaput. One completely bit the big one. My complex is full of dirty power. Just glad it took out a 100 dollar UPS and batteries rather than nuking 1000's of dollars of electronics. Saved my 4k TV, 4k receiver, Multiple consoles, Blu-ray player, Media computer and various other audio devices hooked up to it. These batteries replaced the other one that simply needed new batteries. Bought another set. Voila!! up again and electronics are happy.

I just purchased my 5th battery and continue to be pleased with the PowerSonic battery in particular. This brand assures a quality battery. Some batteries claim to be "equilavent" and while they may be close, for important uses, this is the one to buy. I use this battery in many devices, in my airplane running critical avionics where I need the best since my life is on the line. I use this battery to backup my home alarm system and another in my UPS power backup for my PC. It's very fortunate that the same battery fits in all devices.Over the last few years this same size and shape has evolved from 7Ah, to 8Ah, to 8.5Ah and now 9Ah. Some of the copy brands are behind in their technology and can only get 8Ah in the same size package. That's a clear sign that their batteries are not up to par. Also, notice the weight, you can't get more power in the same package without increasing the weight using current technology. If you don't need the full 9Ah capacity and life, then perhaps the lower priced generic brands will work for you?I am able to get 3-4 years out of a battery. These batteries like to be kept charged; if you allow yours to drain it'll hurt the life. If you drain and cycle them expect 300-500 cycles. Also, there are special Gel battery chargers, such as the Battery Tender Junior. Battery Tender 021-0123 Battery Tender Junior 12V Battery Charger This charger is designed specifically for these batteries and will keep them working properly.5 stars for a solid well working battery that performs as needed.

Bought this to replace a ride on child’s car. The car had 24v battery that was garbage, bought another 24v same thing. Then bought two of these and voila! Tied the two together and no more crappy battery issues. I recommend!

I have an old-but-good APC S10 Power Conditioner with Battery Backup that reported an “Inverter” error. It’s not the inverter at fault; it’s the batteries. Replaced all 4 with PowerSonic PS-1290-F2 batteries in Sept 2021 and that fixed the ‘inverter’ problem. Last week, got the same error and found one battery was bad. Installed the new PowerSonic today and all is back to normal. I did bench-charge all 4 before reinstallation.I was glad to have saved the S10, but only 3 years of life on the PS is not good. Uptime on the APC is 99.999%. The OEM APC batteries lasted over 10 years IIRC. As far as I know, you can’t substitute LiFePO4 due to different charging parameters. So lead-acid it is.

Absolutely horrible battery. 1st one ordered was showing a mfg date of 2019, 5 years old). Complained and they sent a new one. You can probably guess, yep, 2019 again. To boot, 1st power outage the device drained and came back reading about 10% capacity left in the battery from what a new one should have. Shows 100% charged but the runtime is next to nothing and it shows 'OL LB' (online low battery) constantly. DO NOT BUY THIS PRODUCT; unless your looking for a paper weight. If I could give a negative review I would. Look at my reviews, I don't normally give bad ones like this.