Neptune Power Brand NT1270 F1 12V 7Ah SLA Replacement Battery for APC Back-UP UPS ES 550 VA BE500C BE500U, RBC2, BE500R, BK300C, BK350, BK500, BK500BLK, BK500M, BK500MC, BK500MUS, SC420, SU420NET

I admit I bought this in April 2023 because it was cheaper than every other option on Amazon to make my Verizon FIOS box stop beeping. I will update this review when it fails. The outgoing battery lasted 7 years.

very well made, works great

Replaced failed alarm system battery. This is an awesome looking battery. Too bad I had to put it in a locked metal box!

This battery is easy to install and a perfect fit. I've been using it for 3+ months and no issues.

I got used scooters at garage sale with dead battery and these batteries worked just fine. My husband had a bit of a challenge installing them, they fit in very tight, but our scooters work so far

Leads would not stay on terminals

Got this to replace old batteries (along with a charger) for an old Razor electric scooter my son was interested in fixing up. Batteries fit and work well, hold a charge and properly re-charge. I had to cut off the wiring on the harness from the original batteries because they were soldered in and went in on the sides. New batteries have terminals on the top, so I had to get connectors and crimp new ones on the wires to wire it up. All good!

I purchased this product as a replacement for the battery in my APC ES 550 back-up. The wires in the APC unit would not fit on the terminals. On inspection I saw that the terminals on the new battery were not the same size as the original battery. I was disappointed to learn that I could not return the new battery.A month later I had an electrician over to make a household repair and I asked him if he could connect the battery. He did and it appears to be working. This just happened today so I do not know if the backup will work or not, but I suspect it will. Not knowing I gave this a 4 rating rather than a 5,