Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: How long is this battery going to last?
Document: The battery came as promised, and worked well when it was installed. Hopefully will last as long as original battery.
The battery fits my Verizon/Frontier FIOS batter backup unit - just as advertised. Just installed it, so I don't know how long it will last. The price was low. What more can you ask for?
Easy and quick replacement for failing Fios B/U battery. Appears to have more amp hours than the original; time will tell how long it will last with our periodic power outages....
I bought this to replace the back up power supply battery in my Verizon Fios Telephone System. It fit fine and ended the annoying beep that came from unit due to the dead battery. Time will tell how long it will last, but after about a month, all is well.
Original Verizon battery lasted years, however it finally gave up in Sept 2012. Bought this battery and installed late Sept 2012. It has already failed. Need to replace with yet another battery. Does the battery work? Yes. However it simply does not last reasonably long. Look elsewhere for a replacement battery. I'm ordering a replacement from another supplier now.
I was a little leery about purchasing the non-OEM battery. So far so good. Battery is nearly identical to the one it replaced. Will it last as long as the original...probably not, but at less than half the cost I am not worried about that. The original one lasted 5 years and I doubt I will keep FIOS for another 5 years, so why do I want to support Verizon's vendor.
I purchased this as a replacement battery for my Verizon FIOS power supply. The original lasted several years but this one was ordered in March 2011 and failed in July 2012. The cost was pretty low and it is described as non-OEM, which might mean won't last as long as an OEM battery.I imagine that better batteries are manufactured with higher quality control than cheaper ones.
Reasonable priced & working beautifully so far, I'll have to wait and see how long it will last before giving my final approval.
Great price on this NON-OEM replacement. Unknown how long it will last but so far works great. If you want to save some money, this is the product.
Purchased battery for FIOS back up and to keep alarm from going off. It was most affordable as opposed to purchasing from Fios dealer or Radio Shack. Received quickly without issues and did the job. Jim
Answer: Barely a year. I would not recommend buying from this vendor.