I have a SUA 3000XLT 208V UPS I only see one battery... are there 2, am I missing something?

Your best bet is to download a copy of the manual so there are no doubts (assuming the info is there), or contact APC support via chat, they were very helpful when I had questions regarding replacing the UPS batteries. I have a SUA2200, if your UPS is similar to mine, the second battery is behind the first one. It was relatively easy to switch the batteries, and be sure to get a UPS prepaid shipping label from APC so you can ship the batteries back to them for recycling.

Are these APC batteries or a 2nd manufacturer. The reason I ask is I order a set of these several years ago from a 2nd party manufacturer and they weren't compatible?

The ones I received were definitely APC branded & worked perfectly.

I have a APC Smart-UPS 2200VA USB & Serial RM 2U 120V. It is a rack mount APC. Does this battery compatable for my APC?

I doubt those batteries would fit a rack mount UPS. The model 2200 we have is a tower model UPS.

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APC UPS Battery Replacement for APC Smart-UPS Models SMT2200, SMT3000, SMT2200C, SMT200US, SMT3000C, SUA2200, SUA3000 and select others (RBC55)

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Option: RBC55

RBC6
RBC7
RBC43
RBC48
RBC55
RBC133
RBC24
APCRBC132

Expected Battery Life (years): 3 - 5
RBC Quantity: 1
Battery Volt-Amp-Hour Capacity: 816
Maintenance-free sealed Lead-Acid battery

Overview

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Reviews (46)

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APC Replacement Battery Cartridge #55 *** Upgrade to a new UPS with APC TradeUPS and receive discount, don't take the risk with a battery failure ***

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Model
Brand	APC
Model	RBC55

Details
Type	Battery
Specifications	Battery Volt-Amp-Hour Capacity: 816 Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte: leakproof Expected Battery Life (years): 3 - 5 RBC Quantity: 1

Features
Features	Battery Characteristics: Spill-proof/Maintenance-freeBattery Chemistry: Sealed Lead AcidHot Swappable: YesMinimum Battery Life: 3 YearMaximum Battery Life: 5 YearCapacity: 816 VAhHeight: 6.8" (173 mm)Width: 5.6" (142 mm)Depth: 7.2" (183 mm)Weight (Approximate): 24.27 kg

Dimensions & Weight
Dimensions	6.8" x 5.6" x 7.2"
Weight	53.40 lbs.

Additional Information
First Listed on Newegg	April 24, 2025

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APC UPS Battery Replacement for APC Smart-UPS Models SMT2200, SMT3000, SMT2200C, SMT200US, SMT3000C, SUA2200, SUA3000 and select others (RBC55)

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Item#: 9SIBZ5KKF45709

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APC UPS Battery Replacement for APC Smart-UPS Models SMT2200, SMT3000, SMT2200C, SMT200US, SMT3000C, SUA2200, SUA3000 and select others (RBC55)

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Customer Reviews of the APC RBC55

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