ExpertPower12V 8AH Sealed Lead Acid (SLA) Battery Replacement for APC Back-UPS ES 550VA Back-UPS Pro 1300/1500 Liftmaster CSL-24VDC Slider Gate Opene - F2 Terminals

For anyone needing to replace their battery in AT&T's Nokia FIOS unit because it's chirping... this battery works great. The expert power battery is an affordable and quality option versus the brand that came installed in the Nokia unit when I had fiber optic internet installed. (That one lasted a year and the exact brand replacement was expensive) The expert power brand batterywill last about 2-3 yrs. *Note- you can silence the annoying chirp alerting you need to replace the battery for 24 hrs by pressing and holding the blue button until it makes a chirp noise. That way you can at least get decent sleep if you can hear the chirp from your bedroom. Just re silence the chirp for another 24 hrs until new battery arrives 😉

I got it next day and installed it immediately. Works perfectly! I had so many kinds to choose from and I could eliminate the chirping noise from the old battery in one day!!

Seems to be a good battery. Fits my APC BACK-UPS ES 650, which was not mentioned in the description. It came with a charge but I let fully charge before my simple test. My computer with two monitors are drawing 70-100 watts and when i unplugged the power it ran for a full 10 minutes, with me still using the computer, before I decided that was adequate and plugged it back in.

Purchased the item for $19.53 in April 2017, after my original Verizon FIOS backup battery expired after 7 years of service, and this new one worked fine. I have but one complaint, that this Expert Power 12V 8AH rechargeable battery seems to have had a shorter than expected in-service life.However, assuming a Verizon FIOS battery purchased today would last 7 years, it might be more economical in the long run, depending of course on inflation.

This is yet another battery for my old UPS.six screws out, release two connectors, reverse procedure and power up.Nice to get this working so easily.Sure wish the company could have a 'F2' printed someplace on the battery so that in future I do not have to measure the terminal to see if I need 0.187 F1 type or the 0.250 F2 type. Oh well, I put a label printed on the case of my UPS and on the battery for my future needs. Yes, this is F2 type and the terminals are very good quality and will hold connection to my wire nicely.

Put a photo in here to show that I did, in fact, purchase one of these for my Cyberpower 550VA UPS as was recommended by Amazon. After I ordered it, Amazon shipped this battery super fast. The battery arrived DOA. It would not hold a charge. Odd. I've purchased several other brands here on Amazon. They all worked ok for a few years. The last mighty max battery blew up on me and ruined my APC UPS. I thought I would give this brand a try. No joy. Time to look elsewhere.

Batteries are replacing existing ones in fire alarm panel. Arrived in good time and all worked!

Great!