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Rectangular sealed lead-acid battery block with screw terminals

RefurbUPS

RefurbUPS ES1512 12V 18A UPS replacement battery

SKU CH-NXW5-JRCXH

A 12 V 18 A sealed lead-acid battery kit with installation instructions for UPS replacement

  • TypeKit/Package
  • Weight15
  • Compatible 12V 18A SLA battery powers UPS reliably
  • High-rate discharge design supports demanding backup loads
  • Factory-fresh cells deliver consistent performance out of the box
  • Single-unit kit simplifies replacement without extra parts
  • Detailed installation guide enables quick, confident setup

12V 18A UPS replacement kit

This single-battery kit provides a 12V 18A sealed lead-acid cell built as a direct drop-in cartridge for compatible UPS units. It arrives factory-fresh and includes step-by-step installation instructions so technicians can swap the old module without special tools. The kit suits IT teams maintaining rack-mounted or tower UPS hardware that specifies a 12V 18A form factor.

Thermals noise and power draw

Sealed lead-acid chemistry runs silently with no moving parts, adding zero acoustic load to the server room. Self-discharge is low, so the battery holds charge during extended mains periods without generating noticeable heat. Normal float operation draws only the trickle current required by the UPS charger circuit.

12V 18A capacity constraint

The 18 ampere-hour rating fixes total runtime; systems needing longer autonomy must use a UPS that accepts additional or higher-capacity cartridges. Builders whose equipment calls for a different voltage, amp-hour value or physical footprint cannot use this kit. Verify the UPS service manual for the exact 12V 18A specification before ordering.

Highlights

  • Compatible 12V 18A SLA battery powers UPS reliably
  • High-rate discharge design supports demanding backup loads
  • Factory-fresh cells deliver consistent performance out of the box
  • Single-unit kit simplifies replacement without extra parts
  • Detailed installation guide enables quick, confident setup

Specifications

BrandPower Battery
SeriesPower Battery
TypeKit/Package
Weight15

Questions about this item

How do I install the 12V 18A SLA battery and what step is commonly missed?

Replace the old unit with the single 12V 18A SLA battery, then charge it fully before first use; the step most often missed is skipping that initial full charge.

What maintenance or replacement will the 12V 18A SLA battery need later?

Expect to replace the 12V 18A SLA battery every three to five years; no routine maintenance is required beyond keeping terminals clean and the unit in a cool, dry place.

What limit appears first on the 12V 18A SLA battery during sustained discharge?

The 18 A high-rate discharge limit is reached first; continuous loads above that level will cause voltage to drop rapidly and trigger UPS shutdown.

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