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Two square 12V5A batteries in a replacement kit

RefurbUPS

RefurbUPS ONeAc ON400A-SN Compatible Replacement Battery Kit (2×12V5A)

SKU CH-FXAG-0F7RW

A compatible replacement kit containing two 12V5Ah sealed lead-acid batteries for UPS units

  • TypeKit/Package
  • Weight10
  • Compatible kit replaces original UPS batteries
  • Two 12 V 5 Ah sealed lead-acid cells included
  • Factory-fresh stock ensures reliable backup power
  • Step-by-step instructions simplify installation
  • 10 kg total weight for stable mounting

Replacement Battery Kit for OneAC UPS

This kit supplies two 12V5A sealed lead-acid batteries built as a direct replacement for the OneAC ON400A-SN cartridge. Each unit is factory fresh and rated for high-rate discharge, ensuring the UPS can deliver its full runtime when mains power fails. The package includes step-by-step installation instructions so the swap can be completed without special tools.

Suitable for OneAC UPS owners needing

Technicians maintaining a OneAC ON400A-SN UPS will find the exact voltage and capacity match they require. Buyers whose equipment uses a different battery count, voltage, or form factor should look elsewhere because this kit is tailored to the specific cartridge layout described above.

Critical spec: two 12V5A blocks in one kit

The defining detail is the pair of 12V5A batteries that together replicate the original cartridge. If the target UPS calls for a different voltage, capacity, or quantity of blocks, this kit will not fit or function correctly.

Highlights

  • Compatible kit replaces original UPS batteries
  • Two 12 V 5 Ah sealed lead-acid cells included
  • Factory-fresh stock ensures reliable backup power
  • Step-by-step instructions simplify installation
  • 10 kg total weight for stable mounting

Specifications

BrandOneAC
SeriesOneAC Batteries
TypeKit/Package
Weight10

Questions about this item

What UPS models accept the ON400A-SN battery kit with its two 12V5A cells?

The kit is built as a direct replacement for UPS units that use the ON400A-SN cartridge containing two 12V5A sealed lead-acid batteries.

Can I mix these new 12V5A batteries with older cells still inside my UPS?

No. Both 12V5A batteries must be replaced together so the string voltage and capacity stay matched.

How do I confirm the kit is working after I install the two 12V5A batteries?

Power on the UPS, let it charge fully, then run a self-test or pull the mains plug to verify the unit holds the load on battery power.

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