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Rectangular sealed lead-acid battery, black plastic case, nut and bolt terminals on top

BatteryJack inc.

BatteryJack inc. 12V 18Ah UPS Replacement Battery

SKU CH-K4AH-97DDR

12 V 18 Ah sealed lead-acid battery with AGM technology, maintenance-free, fits UPS, scooters, alarms and emergency lighting

  • 12 V 18 Ah capacity powers UPS and mobility devices
  • Advanced AGM technology enables sealed maintenance-free operation
  • Direct replacement for PS-12180 NP18-12B and other OEM packs
  • Compact 7.13 × 3.00 × 6.6 in footprint fits tight bays
  • 5 lb deep-cycle design supports fire alarms and scooters

12V 18Ah AGM UPS Battery

This 12V 18Ah sealed lead-acid battery uses AGM technology for maintenance-free operation in UPS units, emergency lighting, security panels, and mobility devices. It replaces a wide range of OEM part numbers from 15Ah to 20Ah capacities. The valve-regulated design allows safe installation in any orientation without spill risk.

Nut-and-bolt terminals included

The package supplies nut-and-bolt terminals so the battery can be wired directly to existing harnesses without soldering or adapter cables. This hardware matches the connection style used on many Power Wheels modifications, scooters, and backup-power enclosures. No additional mounting brackets or wiring kits are bundled.

Check voltage, dimensions, and terminal layout

Verify that your equipment requires a 12V nominal voltage and accepts the 7.13 in length, 3.00 in width, and 6.6 in height footprint. Confirm the terminal polarity and bolt pattern align with your device before ordering. The 12.5 lb weight may affect mounting in portable applications.

How it compares

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

Price $46.99
Pricier than about 57% of the 3,915 comparable items (median $39.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How often will the 12V 18Ah AGM battery need replacement under normal use?

The manufacturer states an expected life of 4 to 7 years. It is a sealed, maintenance-free VRLA design, so no water topping or electrolyte checks are required during that period.

What limits runtime when the battery powers a load continuously?

The 18Ah capacity at 12 volts sets the total energy available. Under sustained discharge the voltage will drop until the connected device reaches its low-voltage cut-off, ending usable runtime.

How much heat or noise does the battery produce during all-day operation?

Sealed lead-acid AGM cells generate no audible noise. They warm slightly during charge or heavy discharge, but normal operating temperatures stay within the standard VRLA range without active cooling.

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