We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular sealed lead-acid battery block, grey plastic casing with two terminals on top

Battery Technology Inc.

Battery Technology Inc. RBC51-SLA51-BTI 12V 9AH UPS Replacement Battery

SKU CH-2Y1W-BMC1B

A 12 V sealed lead-acid cell replaces batteries in Eaton and Tripp Lite UPS models rated 450, 525, 600, 675 and 700 VA

  • Product typeBattery
  • 12 V 9 Ah sealed lead-acid chemistry delivers reliable backup power
  • Compatible with APC Smart-UPS 600 VA LCD models
  • Fits Eaton Tripp Lite Internet Office 450 and 525 UPS units
  • Replaces batteries in BCPRO and OMNIPRO 675 VA systems
  • Direct replacement for RBC51-SLA51 part number

Direct UPS Replacement

This 12 V 9 Ah sealed lead-acid battery replaces the original cell in compatible Eaton and Tripp Lite UPS units. It restores backup runtime for protected workstations, network gear and point-of-sale systems. The single-cell design fits the standard battery compartment without modification. Installation is user-serviceable with basic tools.

Compatibility Checklist

Verify that your UPS model appears in the supported list: IO700NAFTA, SMART600PSGLCD, OMNIPRO675, INTERNETOFFICE525, INTERNETOFFICE450, INTERNET700i, BCPROINT675 or BCPRO675. Confirm the existing battery is a 12 V 9 Ah unit with matching terminal layout. Units not listed may use a different voltage, capacity or form factor.

When to Swap

Replace the battery when runtime drops below acceptable levels or the UPS signals a battery fault. A fresh 9 Ah cell restores the original backup duration for the listed models. If your equipment demands longer runtime than the original specification, this direct replacement will not extend it.

How it compares

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

Price $46.99
Pricier than about 57% of the 3,915 comparable items (median $39.99).

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameBattery Technology Inc.
Product typeBattery

Questions about this item

Does the BTI RBC51-SLA51-BTI come with cables or mounting hardware?

The unit is supplied as a single 12 V 9 Ah sealed lead-acid cell; cables and mounting brackets are not included and must be sourced separately.

Which UPS models does the 9 Ah version support?

It is a direct replacement for Eaton and Tripp Lite units including the Internet Office 450, 525, 600, 675, 700i, BCPRO 675, BCPROINT 675, IO700NAFTA, OMNIPRO 675 and SMART600PSGLCD.

What runtime can I expect from the 12 V 9 Ah cell in a Smart 600 UPS?

Runtime depends on the connected load; at full rated load the 9 Ah cell typically provides a few minutes of backup, while lighter loads extend that proportionally.

More in UPS Replacement Batteries

Similar items