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Two sealed 12V 18Ah lead-acid batteries glued side by side

RefurbUPS

RefurbUPS ONeAc ON400X-WL UPS Replacement Battery Kit 2x 12V 18Ah

SKU CH-RX77-6HM67

Two 12 V 18 Ah sealed lead-acid batteries replace the ONeAc ON400X-WL UPS cartridge

  • Product typeKit/Package
  • Product weight30
  • Compatible kit with two 12V 18Ah batteries
  • High-rate discharge design for demanding UPS loads
  • Factory-fresh cells ensure reliable backup power
  • Glued battery pair simplifies cartridge installation
  • Includes comprehensive replacement instructions for easy setup

Kit Contents

The RefurbUPS ONeAc ON400X-WL kit contains two sealed lead-acid batteries, each rated at 12 volts and 18 ampere-hours. The units are glued together as a single cartridge for straightforward installation. Manufacturer highlights confirm the batteries are factory fresh and built for high-rate discharge performance. Comprehensive replacement instructions are included in the package.

Ideal Use Cases

This kit suits administrators maintaining compatible OneAC UPS systems that require a 12V 18Ah battery pair. It is not for buyers who need a different voltage, capacity, or physical form factor for their specific UPS model. It is also not for users seeking lithium-ion chemistry or hot-swappable individual modules. Verify the exact cartridge dimensions and connector layout before ordering.

Critical Specification

The decisive specification is the 18 ampere-hour capacity at 12 volts per battery. This rating determines the available runtime and load support for the UPS. If the original equipment specifies a different ampere-hour value, the kit will not provide the correct backup duration. Match this capacity exactly to ensure proper system operation.

How it compares

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

Price $92.99
Pricier than about 75% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand nameOneAC
Product lineOneAC Batteries
Product typeKit/Package

Questions about this item

How much heat or noise does the ON400X-WL battery kit produce during continuous operation?

The sealed lead-acid batteries operate silently and generate negligible heat under normal float charge; any warmth appears only during heavy discharge.

What existing UPS hardware is required for the ON400X-WL kit to function?

A compatible OneAC UPS that accepts two 12 V 18 Ah high-rate cartridges and provides the correct terminal spacing for the glued pair.

Will the ON400X-WL kit work reliably in an older OneAC UPS that has been in service for several years?

Yes, the factory-fresh 12 V 18 Ah cells are designed as direct replacements and include installation instructions for legacy OneAC units.

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