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Rectangular sealed lead-acid battery, black plastic case with two terminals

BatteryJack inc.

BatteryJack inc. 12Volt 18AH Rechargeable Sealed Lead Acid Battery

SKU CH-5DM2-SR56M

A 12V 18Ah sealed lead-acid battery using AGM technology for maintenance-free, non-spillable operation in any position with 90% gas recombination and a 4-7 year expected life

  • 12 V 18 Ah capacity powers devices longer
  • AGM glass-mat design prevents electrolyte leakage
  • Sealed non-spillable construction allows any mounting angle
  • 90 % gas recombination keeps internals maintenance-free
  • 100 % OEM replacement fits original equipment directly

12 V 18 Ah sealed lead-acid battery

This 12 volt, 18 Ah rechargeable battery uses AGM technology for maintenance-free operation. The sealed construction prevents electrolyte leakage and allows installation in any position. It is designed as a direct OEM replacement for UPS and backup power systems.

Suits UPS and standby power replacements

Buyers needing a drop-in battery for existing 12 V 18 Ah backup units will find this matches the original specifications. It is not intended for deep-cycle traction use or applications requiring higher capacity than 18 Ah.

Over 90 % gas recombination rate

The internal design recombines more than 90 % of gas generated during normal charging, eliminating the need for water top-ups. This sealed recombination system is the key factor that enables maintenance-free, position-free service life.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $44.99
Pricier than about 90% of the 10,440 comparable items (median $10.99).

Specifications

No published specifications for this item yet.

Questions about this item

What are the voltage and capacity ratings of this sealed lead-acid battery?

This battery delivers 12 volts and 18 ampere-hours of capacity.

How do I install the battery without causing a short circuit?

Connect the positive terminal first, then the negative, ensuring cables are tight and the battery sits upright or on its side.

When should I plan to replace this AGM battery?

Expect a service life of 4 to 7 years; replace when runtime drops noticeably or the unit fails a load test.

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