ExpertPower® 12V 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

Good quality battery, with sturdy leak-free case and reliable performance in an application that's hard on a battery.Very acceptable pricing for what you get.

Battery fits an performance is good

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 😉

Very nice

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.

This isn't a rechargeable battery. Once it goes dead you'll be in my shoes. Dead battery. I tried jumping it, using a battery tender using a battery charger no luck.

Great!

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!!