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Single 6V 4.5Ah sealed lead-acid battery with T1 terminals

RefurbUPS

RefurbUPS PS-640 6V 4.5A ups replacement battery

SKU CH-DMG9-2J55W

A Power-Sonic PS-640 compatible 6 V 4.5 Ah sealed lead-acid battery with T1/F1 terminals for UPS replacement

  • Product typeKit/Package
  • Product weight3
  • Compatible 6 V 4.5 A SLA battery fits PowerSonic PS-640 UPS
  • High-rate discharge chemistry delivers reliable backup power when mains fail
  • Factory-fresh cells ensure full capacity from first charge
  • T1/F1 terminals allow direct drop-in installation without adapters
  • Kit includes step-by-step replacement instructions for quick service

What this product is

The RefurbUPS PS-640 is a new replacement battery kit built around a single 6 V 4.5 Ah sealed lead-acid cell. It is designed for users who need a direct swap for a PowerSonic PS-640 cartridge in an existing UPS unit.

What to check before ordering

Verify that your UPS accepts a 6 V 4.5 Ah battery with T1/F1 terminals and that the physical cartridge matches the PS-640 form factor. Confirm the terminal polarity and wiring layout against the unit you are servicing before installation.

Build quality and daily implications

The kit ships factory-fresh and includes comprehensive replacement instructions for straightforward user installation. T1/F1 terminals allow a quick, tool-free connection, while the sealed construction means no routine maintenance is required once the battery is seated in the UPS.

How it compares

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

Price $8.99
Cheaper than about 96% 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 namePowerSonic Battery
Product linePowerSonic Battery
Product typeKit/Package

Questions about this item

Does the PS-640 kit come with cables or mounting brackets, or do I need to buy them separately?

The kit contains one 6 V 4.5 Ah SLA battery with T1/F1 terminals and installation instructions; no cables or brackets are included.

Is the PS-640 the only capacity option in this series, or are there higher amp-hour versions I should consider?

This listing is for the 4.5 Ah model only; other capacities are not offered under the PS-640 part number.

What runtime can I expect from the 4.5 Ah battery once it is installed in my UPS?

Runtime depends on the UPS load and efficiency; the 4.5 Ah rating indicates the charge the battery can deliver, not a fixed run time.

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