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A single sealed lead-acid battery block in a rectangular plastic case with two terminal posts on top

RefurbUPS

RefurbUPS MK ES12-12 12V 12A UPS Replacement Battery Kit

SKU CH-E87T-986WB

Contains one 12 V 12 Ah high-rate SLA battery with installation instructions

  • TypeKit/Package
  • Weight10
  • Ready-to-install kit includes one 12V 12Ah SLA battery
  • High-rate discharge design delivers reliable backup power
  • Factory-fresh cells ensure consistent performance from day one
  • Comprehensive installation guide simplifies the replacement process
  • Lightweight 10 kg package eases handling and mounting

MK ES12-12 Kit Contents

The kit provides a single 12V 12A sealed lead-acid battery rated for high-rate discharge. It arrives factory fresh and includes comprehensive installation instructions to guide the replacement process. This package is intended for users whose UPS units require this specific voltage and capacity to restore backup runtime.

Included Instructions and Readiness

The printed instructions walk through the swap step by step, reducing the chance of wiring errors during installation. Because the battery is supplied pre-charged and ready for immediate shipment, it can be deployed as soon as it arrives without an initial conditioning cycle. This helps minimise downtime for the connected equipment.

Compatibility Checks Before Ordering

Verify that the existing UPS specifies a 12V 12A battery and uses the same physical dimensions and terminal layout as the MK ES12-12 reference. Confirm the unit’s battery bay can accommodate the supplied weight of 10 and that the connector polarity matches the original cartridge. Buyers whose UPS requires a different voltage, capacity, or form factor should not use this kit.

Highlights

  • Ready-to-install kit includes one 12V 12Ah SLA battery
  • High-rate discharge design delivers reliable backup power
  • Factory-fresh cells ensure consistent performance from day one
  • Comprehensive installation guide simplifies the replacement process
  • Lightweight 10 kg package eases handling and mounting

Specifications

SeriesOther Manufacturers
TypeKit/Package
Weight10

Questions about this item

How often will the 12 V 12 Ah SLA battery in this kit need replacing?

Valve-regulated lead-acid cells typically deliver three to five years in float service; swap the cartridge when runtime falls noticeably below the original backup time.

What limits continuous operation of this replacement battery?

The 12 Ah capacity sets the energy ceiling; prolonged discharge beyond the rated current will hit voltage cut-off first.

How much heat does the 12 V 12 Ah battery generate during all-day float charging?

Float charge current is very low, so heat output is minimal; the battery stays near ambient temperature in normal UPS operation.

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