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Rectangular black sealed lead-acid battery with two terminals

Battery Technology Inc.

Battery Technology Inc. RBC46-SLA46-BTI accessory

SKU CH-R2FZ-42FZG MPN RBC46-SLA46-BTI

12 V 5.5 Ah sealed lead-acid replacement battery for APC BE500 UPS units

  • Product typeBattery
  • Compatible withAPC BE500 Replace oem number(s): RBC46
  • DetailsVolts: 12 V Cells: 1 A: 5.5A Chemistry: Sealed Lead Acid
  • Powers APC BE500 UPS with 12V 5.5A sealed lead-acid chemistry
  • Direct replacement for OEM RBC46 restores original runtime
  • Single-cell 12V design fits existing battery compartment
  • 5 amp-hour capacity supports essential load during outages
  • New BTI unit manufactured to APC BE500 specifications

Compatible APC BE500 Replacement

The Battery Technology Inc. RBC46-SLA46-BTI is a direct replacement battery for the APC BE500 uninterruptible power supply. It restores backup runtime when the original cell reaches end of life. Home-office users and small-business operators can swap the module without tools or firmware changes.

Sealed Lead Acid 12V 5.5A Operation

The unit uses a single sealed lead acid cell rated at 12 volts and 5.5 ampere-hours. This chemistry delivers stable voltage during discharge and requires no maintenance. Normal operation produces minimal heat and no audible fan noise because the battery itself is passive.

Replaces OEM RBC46 Module

This accessory replaces the APC RBC46 original equipment module listed in the compatibility data. The upgrade is worth it when the UPS reports a battery fault, runtime drops below useful levels, or the unit reaches its typical service interval. Buyers needing higher capacity or lithium chemistry should look elsewhere.

How it compares

Measured against everything we stock in UPS Replacement Batteries, at today’s prices. Recalculated every night.

Price $35.99
Typical for this category: the median of 3,915 items is $39.99.

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Specifications

Product
Brand nameBTI
Model nameRBC46-SLA46-BTI
Product typeBattery
Size & build
Shipping weight2.27 kg
Package size210 × 168 × 73 mm
Compatibility
Compatible withAPC BE500
Replace oem number(s): RBC46

Questions about this item

How do I install the RBC46-SLA46-BTI in my APC BE500 without damaging the connector?

Power off the UPS, remove the battery cover, disconnect the old battery leads noting polarity, connect the new 12V 5.5A pack matching red to positive and black to negative, then refit the cover securely.

When will the sealed lead-acid cell in this RBC46 replacement need changing again?

Expect three to five years of service; replace once runtime drops noticeably or the UPS reports a battery fault during self-test.

What runtime limit appears first during a prolonged outage with this 5.5Ah pack?

The 12V 5.5Ah capacity determines how long the BE500 can sustain its load; once depleted the UPS will shut down until mains power returns.

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