Power Sonic PS-1270 Sealed Lead Acid Battery, 12 Volt 7 AH, 0.250 F2 Terminal

I was a little skeptical after reading some reviews on some of this seller's (eComElectronics) products. Several folks have complained of receiving a replacement battery that was not the item described (or they didn't read the description carefully). I carefully reviewed replacement batteries for my APC Backups ES 500VA (BE500U) unit and found out that many folks have ordered batteries from many different sellers (including eComElectronics) and then found out that the terminal size was incorrect. I have used Power Sonic batteries in the past, and have found them to be top notch in quality and longevity, and was specifically looking for this battery. eComElectronics had the very best price on this battery, and it is the exact replacement for any APC unit that uses the RBC2 (APC Replacement Battery Cartridge #2) in specs and dimensions. The terminal size (F2 - also called T2) is 1/4" wide and is the issue when many buy batteries for replacing the APC RBC2. The most popular battery sold on Amazon for replacement of the RBC2 is the UB1270 battery, and it does NOT have F2 terminals (it has F1 terminals that are smaller). Many complaints are because of loose fitting connections between the battery terminals and the battery cables. The difference in the size of the terminals is the reason (F1 vs. F2) for this. If you want a top quality battery that replaces the APC RBC2 battery, you can feel confident that eComElectronics will ship this exact battery, and it will fit and work perfect in any APC device that uses the RBC2. The price can't be beat and shipping was lightning fast. I will definitely be using eComElectronics for future purchases of my UPS battery needs. Be sure to read the descriptions of their batteries very carefully, and make sure you know what you need before ordering. Some of the batteries they sell are, in fact, replacement batteries for the items pictured (as noted in the written descriptions), not the battery pictured. This is NOT the case with this item.

Best battery out there. Came in dead but works like a champ

Perfect backup battery for my home alarm system. I've bought the Power Sonic brand before and they are very good quality. The size is an exact fit in the alarm box. And it is compatible with the built in charger. Will keep my alarm backed up for many days.

For our alarm system it is a good price and received in two days

It's an inexpensive little replacement battery. Decent value for the money. It fit my UPS and will hopefully extend it's life for another few years.

Just want to note that I bought this exact listing in May of 2018, and I'm just now replacing it in Oct of 2025. I probably SHOULD have replaced it sooner, but it was still holding a bit of a charge when power flickered. Its easy to install, and fits perfectly into, and is compatible with, my old APC Backups 400.

Battery came fast and was packaged securely. Just make sure you notice or look to see if you need the F2 or F1 terminal for this type of battery. The difference between F1 and F2 terminals is their width. You will need to get adapters if you purchase the F2 and you need the F1 terminals. When you only purchase this type of battery every few years, it is something you could overlook. I went to the local battery store near me, and they placed the adapters on for free even though I did not buy the battery from them. They even recycled my old battery.

My house alarm just wouldn’t stop beeping every day. I finally realized it was this battery to replace. Worked great. Old battery lasted since 2017, so I’m sure I’ll replace it again in a other 8 years

I replaced a dead battery in my APC UPS with this one and so far it is working fine. The original battery lasted about 5 years and so time will tell if this one will last as long. One little grip is that the battery supplied did not match the photo shown and was from a different unknown supplier and not Power Sonic, which is a more widely recognized brand.

Le quedó perfecto a mi bocina recargable Samson xp106, ya no le duraba mucho la carga a la anterior (2 horas) pero con esta batería recargable nueva, otra vez le dura hasta 6 horas de uso continuo.

Came before the delivery expected date. Battery life is long. It’s been over a month and I haven’t had to charge it yet.

Buen producto las instale en mi no break y lo carge todo un 1 dia y si retiene la carga como debe de ser lo recomiendo

Took awhile to get here, but exactly as described. Good battery . I'd buy again