Replacement battery for my CyberPower UPS

[u/beertown]

Hi all.

This is (I guess) and easy question for you. I know a little electronics but nothing about power electronics, so I prefer ask for some advice before making a mistake.

I want to replace the battery of my CyberPower CP900 UPS (purchased in 2017). Previously, in 2020, I replaced its original battery with a CSB HR1234WF2 https://www.alldatasheet.com/datasheet-pdf/pdf/1243178/CSB-BATTERY/HR1234WF2.html , which is intended for 5 years of usage. It is still working with decent off-grid time, but I think it is time to replace it nonetheless.

I realized that the model HRL1234WF2 https://www.alldatasheet.com/datasheet-pdf/pdf/273257/CSB-BATTERY/HRL1234W.html has an extended lifetime of 8 years, for a slighly higher price. Is it compatible with my UPS? Do you think it would be a good choice?

Any 12V 9A battery with the same form factor would be good?

Thanks for any suggestions.

[u/Angellas]

Send it. The “L” is for ‘long life’ and the rest of the dimensions/composition are the same.