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Single 6V 4.5Ah sealed lead-acid battery cartridge model 3921

RefurbUPS

RefurbUPS 3921 ups replacement battery 6V 4.5A

SKU CH-6SRB-GJ1GF

Compatible 6 V 4.5 Ah SLA battery kit for emergency lighting systems

  • Product typeKit/Package
  • Product weight3
  • High-rate discharge design delivers reliable emergency power
  • 6 V 4.5 A sealed lead-acid chemistry ensures consistent output
  • SureLite 3921 compatibility guarantees correct fit
  • Single-battery kit simplifies installation and replacement

SureLite 3921 replacement battery

This SureLite 3921 unit is a new, compatible replacement battery cartridge for emergency lighting and UPS systems. It contains a single 6V 4.5A high-rate discharge sealed lead-acid battery with T1/F1 terminals. The kit is designed for maintainers and facility managers who need a direct drop-in spare for existing backup installations.

Capacity and headroom

The 4.5A rating supplies the rated runtime for the original equipment it replaces. It will not extend autonomy beyond the manufacturer's design limits. Buyers who need longer backup duration or higher discharge currents must select a different capacity or multi-battery configuration.

How it compares

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

Price $9.99
Cheaper than about 94% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand nameEmergency Lighting
Product lineEmergency Lighting
Product typeKit/Package

Questions about this item

Will the 6V 4.5A battery fit the same slot as my old SureLite 3921 unit?

The replacement uses the same T1/F1 terminal layout as the original SureLite 3921 cartridge, so it connects to the existing wiring without modification.

How can I confirm the new 6V 4.5A battery is delivering power after installation?

After fitting the battery, run the UPS self-test or emergency-lighting duration test; a successful pass shows the 4.5 Ah cell is supplying the expected runtime.

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