APC RBC123

Worked great, slid right into the UPS with little effort! Took a fall charge and worked great protecting my computer. You could Sind cheaper replacements but its worth the money for the ease of replacement.

Direct replacement of OEM battery. Priced right and much less than a new backup unit. Functions as advertised, durable construction.

The replace battery warning came on after a self-test. This is a replacement for that battery. It works. Not sure what else to say about it other than it was a huge PITA to get the old one out. You'd think it would just slide straight out easily but no. It catches about 1/4 of the way out and again about 3/4 of the way out. It required some secret handshake - down and out then up and out to extract the old battery. Not a fan of that setup. The battery is HEAVY - it's not like it's just going to come shooting out of the UPS if it has an unimpeded straight path out. Anyhow, the battery is installed and working and the red light is out so all is good.

Needed a replacement for a J35B UPS and this is it. Easy replacement, battery worked no problem. Just remember to change the install date on the unit.

The hardest part was making sure I had the right part number for the APC replacement battery. Here is the drill! Find the sticker with your model Number on the back or bottom of your UPS. Then go to the APC website [APC.COM] and get the recommended replacement battery part number for your UPS. [Don't be seduced by saving a few bucks with a cheaper replacement]. The APC battery [actually 2 batteries in my case] comes pre assembled and ready to install.Turn your UPS off, unplug it from the wall, lay your UPS on its side on a flat surface, slide off the battery compartment cover and remove the installed battery, install your replacement battery, reinstall the cover. turn your UPS upright and plug it in the wall, turn your UPS on and verify everything is working. It took more time to write this review than it did to swap the battery pack in my BX1300G APC UPS.Oh yes be sure and recycle your removed battery pack responsibly, don't put it in the trash. The recycling information took a bit of searching. "When you buy a new genuine APC RBC, you can recycle your old UPS battery via the "RBC Recycling Program" on the APC website. This program includes free return to a recycling center (use the packaging from your new battery to return the old)"

OE Part. Work perfect.

Fit in my UPS perfectly. Went from zero to full protection without any tools.

What can I say? This APC RBC123 dropped right into my UPS and showed up fully charged. Best part is it is OEM so it comes with a warranty and recycling label in the box. Always feel better using OEM replacement batteries in my UPS's.