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Four black rectangular sealed lead-acid batteries in a kit

RefurbUPS

RefurbUPS ONEAC ON900AU-SN Compatible UPS Replacement Battery Kit 4×6V12A

SKU CH-6809-2FMNB

Kit of four 6 V 12 Ah sealed lead-acid batteries for ONEAC ON900AU-SN UPS units

  • Product typeKit/Package
  • Product weight20
  • Kit contains four 6V 12Ah SLA batteries
  • 20 kg total weight for stable mounting
  • Factory-fresh cells deliver reliable runtime
  • Includes step-by-step replacement instructions
  • Compatible with ON900AU-SN UPS models

Compatible kit for ON900AU-SN UPS

This replacement battery kit is built for the ONEAC ON900AU-SN uninterruptible power supply. It contains four 6V12A sealed lead-acid cells assembled as a single cartridge. The kit suits administrators who need to restore runtime on that specific UPS model. Buyers with a different UPS should not order this kit.

Verify UPS model before ordering

Confirm that your unit is the ONEAC ON900AU-SN before purchasing. The cartridge is engineered to the electrical and physical specifications of that model only. Installation requires opening the UPS chassis and handling lead-acid batteries. No other compatibility is implied or supported by this package.

Includes installation instructions

The package supplies step-by-step replacement instructions to guide the battery swap. Factory-fresh cells are intended to deliver rated capacity from first use. No management software, cables or mounting hardware are bundled with this kit.

How it compares

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

Price $39.99
Typical for this category: the median of 3,915 items is $39.99.

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Specifications

Product
Brand nameOneAC
Product lineOneAC Batteries
Product typeKit/Package

Questions about this item

What does the ONEAC ON900AU-SN compatible battery kit include and is anything else required?

The kit supplies four 6V12A sealed lead-acid batteries plus installation instructions; no extra parts are needed for a standard swap.

How do I know this 6V12A kit is the right capacity for my ON900AU-SN unit?

It matches the original specification of four 6V12A high-rate cells, so it restores the UPS to its factory runtime.

What does the 900 in the model name mean for actual backup time once installed?

The 900 refers to the UPS series designation; real-world runtime depends on the connected load and battery age.

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