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Sealed rectangular 6V 4.5Ah AGM battery block

BatteryJack inc.

BatteryJack inc. 6V 4.5Ah UPS Replacement Battery

SKU CH-TEWQ-THZBP

Sealed 6 V 4.5 Ah AGM battery with maintenance-free operation and over 90 % gas recombination

  • 4-7 year expected life with AGM technology
  • 100% OEM replacement for APC RBC1 units
  • Maintenance-free sealed construction prevents electrolyte leakage
  • Over 90% gas recombination for safe operation
  • Operates in any position without spillage

6 V 4.5 Ah UPS Replacement Battery

This sealed lead-acid battery uses advanced AGM technology to provide maintenance-free backup power for compatible uninterruptible power supplies. It arrives ready to install with no electrolyte handling required. The non-spillable design meets IATA transport requirements and can operate safely in any orientation. It is intended for users who need a direct 100 % OEM replacement for an existing UPS unit.

Fit and Installation

The battery serves as a drop-in replacement for the APC RBC1 pack, requiring no wiring changes or firmware updates. Its sealed construction eliminates the need for water top-ups or specific-gravity checks during its service life. Gas recombination technology handles over 90 % of generated gas internally, freeing the installer from ventilation constraints. It is not suited for systems that demand a different voltage, capacity or physical form factor.

Sustained Load Behaviour

The AGM separators absorb sufficient electrolyte to deliver steady service throughout the expected floating life of four to seven years. Recombination of over 90 % of gas keeps internal pressure stable during extended discharge cycles. Maintenance-free operation means no intervention is needed while the UPS carries the load. Buyers needing longer runtime than 4.5 Ah provides should look elsewhere.

How it compares

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

Price $17.99
Cheaper than about 78% of the 3,915 comparable items (median $39.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How long can the 4.5 Ah capacity sustain my load before the voltage drops?

The 4.5 Ah rating defines the total charge available; actual runtime depends on the connected load's current draw and the UPS unit's inverter efficiency.

Does the AGM design produce noticeable heat or gas during continuous float charging?

The gas recombination system recovers over 90% of generated gas, and sealed AGM construction minimises heat rise, keeping operation quiet and cool.

My APC UPS uses the RBC1 cartridge — will this single 6 V block fit inside?

This is a single 6 V 4.5 Ah block; the RBC1 cartridge contains multiple cells, so verify your specific UPS model's internal wiring before installing.

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