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Single 12V 3.5A sealed lead-acid battery in rectangular case

RefurbUPS

RefurbUPS Haze HZS12-3.3 12V 3.5A UPS replacement battery

SKU CH-ASHM-0371B

A 12 V 3.5 A sealed lead-acid cartridge restores runtime to compatible UPS units

  • TypeKit/Package
  • Weight4
  • Ready backup power with 12V 3.5A SLA cell
  • High-rate discharge design supports demanding UPS loads
  • Factory-fresh condition ensures reliable performance from day one
  • Single-battery kit simplifies replacement without extra parts
  • Includes step-by-step installation instructions for quick setup

Replacement UPS battery for backup systems

The Haze HZS12-3.3 is a factory-fresh 12V 3.5A sealed lead-acid battery designed as a direct replacement cartridge for compatible UPS units. It supplies the reserve power needed to keep servers or network gear running during mains interruptions.

Sealed lead-acid chemistry runs cool and quiet

The SLA construction produces no audible fan noise and minimal heat during normal float or discharge cycles. Power draw is limited to the UPS charging circuit, so the battery adds no extra load to the protected equipment.

Single 12V 3.5A cartridge fits specific models

This kit contains one 12V 3.3Ah high-rate cell, so it only suits UPS units that specify exactly that voltage and capacity. Buyers whose systems require a different amp-hour rating or multiple batteries must select another part.

Highlights

  • Ready backup power with 12V 3.5A SLA cell
  • High-rate discharge design supports demanding UPS loads
  • Factory-fresh condition ensures reliable performance from day one
  • Single-battery kit simplifies replacement without extra parts
  • Includes step-by-step installation instructions for quick setup

Specifications

BrandHaze
SeriesHaze Batteries
TypeKit/Package
Weight4

Questions about this item

How do I install the Haze HZS12-3.3 battery and what step is often missed?

Power off and unplug the UPS, open the battery compartment, disconnect the old battery terminals, connect the new 12 V 3.5 A unit observing polarity, secure it, then close the cover; the step most often missed is removing the UPS from mains power before starting.

What maintenance or replacement will the HZS12-3.3 need later?

The sealed lead-acid cell requires no watering or routine service; plan to replace the cartridge when backup time falls below what the load requires, typically after several years of float service.

What limit appears first on the HZS12-3.3 during a long power cut?

The 3.5 A capacity determines total runtime; once the stored charge is depleted the UPS shuts down, so the capacity limit is reached before any thermal or voltage threshold.

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