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Four cylindrical lithium batteries with black plugs in a pack

TOPMAO

TOPMAO CR14250SE 3V 1800mAh 1/2AA Lithium Battery 4-Pack

SKU CH-566K-YG3YX MPN CR14250SE

Four non-rechargeable 3 V lithium cells with 1800 mAh capacity and a black plug, sized 33.5 mm by 17 mm, rated for -40 to +85 °C operation in PLCs, CNC machines and backup memory systems

  • Rated voltage3 V
  • Amperage1800mah
  • Product typeBatteries
  • 3V lithium chemistry delivers stable voltage for PLC backup
  • 1800mAh capacity supports extended runtime in CNC and servo systems
  • Wide -40°C to +85°C operating range suits harsh industrial environments
  • Low self-discharge rate preserves charge during long storage periods
  • 4-pack supplies ready replacements for 1747-BA power supply units

Industrial Backup Battery Pack

This four-pack supplies non-rechargeable lithium cells rated at 3 V and 1800 mAh each. They are built as direct replacements for the CR14250SE format used in PLC backup modules such as the 1747-BA power supply. The black plug connector matches the original equipment interface.

Compatibility Check Points

Verify that your device specifies a CR14250SE or 1/2AA lithium cell with a black plug connector. Confirm the operating temperature range of the host equipment falls within the cell rating of -40 to +85 °C. Ensure the physical dimensions of 33.5 mm by 17 mm fit the battery compartment.

Target Users and Limits

Suited for maintenance engineers servicing CNC machines, servo drives, programmers, PLCs, injection moulding machines, printing equipment, touch screens, utility meters and real-time clock backup circuits. Not suited for applications requiring rechargeable chemistry or for devices that use a different cell size or connector type.

How it compares

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

Price $37.99
Pricier than about 58% of the 985 comparable items (median $28.99).

Specifications

Product
Brand nameTOPMAO
Model nameCR14250SE 1747-BA
Product typeBatteries
Power
Rated voltage3 V
Amperage1800mah

Questions about this item

What comes in the box and do I need anything else to use these batteries?

The package contains four CR14250SE lithium cells, each with a black plug attached. No extra cables or adapters are required for installation in compatible PLC or CNC equipment.

How do I know the 1800mAh 3V version is the right one for my 1747-BA backup supply?

The cells are labelled CR14250SE 1747-BA and match the 3V 1800mAh specification used by that backup module. Verify the black plug orientation before fitting.

Will the 1800mAh capacity last long enough in a real-time clock running at 85°C?

Rated for -40 to +85°C with low self-discharge, the 1800mAh capacity supports extended backup life even at the upper temperature limit.

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