[shortdesc]

48 Vdc / 864 VAh Lead-Acid, 2U Rack/Tower, External Battery Pack for Smart-UPS, Replacement Battery APCRBC115 (RBC Qty: 2)

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[properties]

Brand	APC by Schneider Electric
Model	SMX48RMBP2U
Product Type	Smart-UPS X External Battery Pack
Form Factor	Rack/Tower 2U
Dimensions (H x W x D)	3.5" x 17.008" x 19.3" (8.9 x 43.2 x 49 cm)
Weight	63.14 lb (28.64 kg)
Color	Black
Number of Rack Units	2U
Mounting Mode	Rack-mounted
Cooling	Not specified

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[specifications]

Battery Type	Lead-Acid
Battery Voltage	48 V
Device Mounting	Enclosed battery cartridge
RBC Quantity	2
Replacement Battery	APCRBC115
Included Battery Modules	0 (empty)
Operating Temperature	0–40 °C (32–104 °F)
Storage Temperature	-15–45 °C (5–113 °F)
Operating Humidity	0–95% non-condensing
Storage Humidity	0–95% non-condensing
Operating Altitude	0–10,000 ft
Storage Altitude	0–50,000 ft
Compliance	RoHS, REACh, WEEE
Warranty	2 years repair or replace
Warranty	2 years repair or replace

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[accessories]

Installation Guide	Included in the box
Rack Mounting Brackets	Included in the box
Warranty Card	Not specified

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Overview

The APC SMX48RMBP2U is a 2U external battery pack engineered to expand backup time for Smart-UPS deployments. With a 48 Vdc, 864 VAh lead-acid design in a compact rack/tower chassis and included rack mounting brackets, it integrates cleanly into standard racks to boost autonomy for servers, storage, and network devices.

Key Features & Benefits

• 48 Vdc Architecture – Matches the UPS battery bus for seamless runtime extension.
• 2U Rack/Tower Form Factor – Conserves U-space and supports flexible orientation in constrained IT racks.
• Lead-Acid Chemistry – Proven energy storage for predictable capacity across typical data-room conditions.
• Serviceable Design – Uses APCRBC115 with RBC quantity of 2 for straightforward maintenance planning.
• Ready-to-Mount – Ships with installation guide and rack mounting brackets for clean deployment.

Technical Deep Dive

Battery System: A nominal 48 Vdc, 864 VAh pack built on lead-acid modules aligns with Smart-UPS expectations so the UPS can immediately leverage added capacity during an outage.

Mechanical Integration: The 2U enclosure (3.5″ × 17.008″ × 19.3″) and included rack mounting brackets simplify installation while maintaining front-of-rack access. Product weight is 63.14 lb (28.64 kg) for rail-planning and handling.

Replaceable Components: Includes zero pre-installed battery modules and uses APCRBC115 (RBC Qty: 2) as the replacement set—useful for lifecycle planning.

Ideal Applications

• Smart-UPS installations requiring extended runtime
• Racks allocating 2U for external battery capacity
• IT environments standardizing on 48 Vdc battery packs

Frequently Asked Questions (FAQs)

Q1: What’s the installation/form factor?
A: It is a 2U rack/tower external battery pack; rack mounting brackets and an installation guide are included for fast setup.

Q2: How much runtime does it add?
A: Runtime extension depends on the UPS model, attached load, and total number of battery packs connected. The pack increases available autonomy by adding 48 Vdc capacity.

Q3: Which batteries does it use?
A: Replacement battery is APCRBC115 with an RBC quantity of 2; the unit ships with 0 battery modules installed.