
This is the original replacement battery and will fit perfectly.

Fits perfectly inside the CyberPower UPS battery compartment and everything is identical to the original battery pack that came with the UPS. but at least 50% less expensive. I have had it since I purchased it about a year ago and it has failed me yet and has been working like the original battery package.

Fit right into the UPS system without having to power the network servers down. Hot swappable.

I thought the unit had to be tossed, or recycled, but the internet revealed that a simple replacement was available.


Delivered right on time. Easy to remove old battery, this one slides right in. Comes with a slip to indicate that all pre-shipping tests were passed. Looking forward to a few years of trouble-free UPS-ing. Easy, free path to ship the old battery for recycling.

An exact replacement for my 6 year old APX XS-1000. The original battery died some time ago (~5 years) and the unit continued to function just fine. Only just recently did I noticed that the battery did not work after an ice storm. After replacing it with this battery, the unit was able to switch to backup power successfully. Didn't even have to shut the unit down, just swapped it out.

APC official battery. It shipped fast, as we're in the same region as one of the Newegg shipping centers, effectively overnight. Installed just fine. There didn't appear to be any difference between buying from Newegg vs ordering through our rep at a competitor or directly through APC.

- Great packaging, fast delivery.

Battery was dead in my APC UPS ES 550. I wanted to use APC original battery and found the best price at Newegg. Installation was quick and easy. It has been working great.

Factory APC replacement, drop-in, no down time. Works just as expected.


These batteries replaced my worn out ones in my Smart 1500 Watt UPS by Tripplite. They went in easy and I had no problems.

Simple installation, shows plenty of power. What else is there?



fit as expected



Lots of outlets, long heavy duty cord. Takes all static out of a cordless telephone. Sounds like a land line! All my problems ceased when I got this 10+ years ago!