UPS Replacement Battery, APCRBC110, for UPS Models BE550G, BE550MC, and select other RBCs

Easy to install, clear instructions. Worked immediately. Comes with a return box for the old battery. Just take it to UPS, and they ship it back (cannot use USPS), so this was great. Free shipping, label included.

I have 8 years since I replace the battery and still working until today, it shout out and did a long bip and just resent and still working. I ll order another one /Llevo 8 años desde que remplace mi batería y sigue funcionando hasta que el día de hoy se apagó y dio un pitido constante y solo lo reinicie y sigue funcionando, compraré otro

This was the correct battery for my UPS and it is doing exactly as it is intended.

This battery is for my surge protector/ uninterrupted power supply source for my computers.Couldn't find locally and got here ASAP. Works great!

Fit great. A little hard to attach but still was able to

I bought my APC ES550 backup in Aug 2008. I bought my first genuine APC replacement battery in Apr 2017. I've now purchased my second genuine backup battery in Mar 2025. I'd say I've gotten some pretty good life out of the previous two batteries. And I know this one is the real deal as the APC box inside the Amazon box has the APC printing on it along with the interior shipping label showing shipped from APC to Amazon. There's also the serial number and on the side of the box. I've been very satisfied with the batteries.

Perfect match for my UPS, revitalized the 12 year old unit powering my vital home items.

Always trust OEM replacements for your UPS. I have tried aftermarket batteries and they need to be replaced after a year or two. Yes, these are more expensive but your equipment and data are worth it.