Product Specifications for Ultralife UB1426 1/2 AA Lithium Cell | 3.2V Li-MnO2 for Industrial & Military Applications
| BM Part #: | UB1426 |
|---|---|
| Voltage: | 3.2 Volt |
| Capacity: | 500 mAh |
| Energy Capacity: | 1.6 Wh |
| Type: | Lithium |
| Length: | 1.02" |
| Diameter: | 0.57" |
| Shipping Weight: | 0.50Lbs (8 oz) |
| Warranty: | 1 Year |
- 1/2 AA form factor with high continuous and pulse current output — 160mA continuous and 300mA pulse current in a compact 0.57" × 1.02" cylindrical cell; suited for memory backup, industrial sensors, metering equipment, PLCs, and similar high-reliability applications.
- 10-year shelf life with ultra-low self-discharge — Li-MnO2 chemistry retains charge through extended storage, making the UB1426 well-suited for equipment that sits in inventory or deployed in the field between service intervals.
- Stable voltage across -40°C to +72°C (-40°F to +162°F) — consistent 3V output across a wide temperature range with no voltage delay, suitable for demanding industrial and outdoor environments.
- 12-month warranty — backed by a full one-year warranty, longer than the DOA-only coverage typical of military primary cells in this catalog.
- NSN 6135-01-340-7883; Export license required — available for military and government procurement through standard supply channels; note that export of this cell requires a valid export license under applicable regulations.
Product Description
Ultralife UB1426 1/2 AA Lithium Manganese Dioxide Cell
The UB1426 is a 1/2 AA size primary (non-rechargeable) Lithium Manganese Dioxide (Li-MnO2) cylindrical cell manufactured by Ultralife. It delivers a stable 3.2 Volt output at 500mAh with high continuous and pulse current capability, making it a reliable power source for industrial memory backup, metering, sensing, and control applications — as well as military equipment requisitioned under NSN 6135-01-340-7883.
Export Notice
An export license is required for international shipment of this product. Contact us before placing an international order to confirm compliance requirements applicable to your destination and end use.
Industrial Applications
The 1/2 AA form factor is widely used in industrial and commercial equipment requiring a compact, long-life primary cell. Typical applications include:
- Memory backup in PLCs, CNC equipment, and industrial controllers
- Metering and utility monitoring devices
- Industrial sensors and wireless transmitters
- Real-time clock (RTC) backup power
- Medical and scientific instrumentation
Current Output
The UB1426 supports 160mA continuous current and 300mA pulse current — higher output than many comparable 1/2 AA cells, suitable for applications with periodic high-drain demands without sacrificing overall capacity or shelf life.
Built for Long-Term Reliability
A 10-year shelf life and ultra-low self-discharge rate make the UB1426 well-suited for equipment that operates in low-drain standby mode for extended periods. Stable output across -40°C to +72°C ensures reliable performance in uncontrolled industrial environments, outdoor enclosures, and temperature-variable deployments.
Procurement Information
NSN: 6135-01-340-7883
Manufacturer: Ultralife Corporation
Chemistry: Lithium Manganese Dioxide (Li-MnO2)
Warranty: 12 months
Export license required for international shipment
Frequently Asked Questions
What is the UB1426 used for?
The UB1426 is a general-purpose 1/2 AA lithium cell used in industrial memory backup, metering equipment, PLCs, industrial sensors, real-time clock backup, and similar applications requiring a compact, long-life primary cell. It is also available for military and government procurement under NSN 6135-01-340-7883.
What equipment uses the 1/2 AA cell size?
The 1/2 AA form factor (approximately 0.57" diameter × 1.02" tall) is used in a wide range of industrial control and instrumentation equipment. Common applications include Fanuc, Mitsubishi, and Siemens CNC and PLC memory backup batteries, industrial sensor transmitters, and utility metering devices. Consult your equipment's documentation to confirm voltage and form factor requirements before ordering.
What does "export license required" mean?
Certain lithium cells are subject to U.S. export controls under the Export Administration Regulations (EAR). Shipping this product outside the United States may require a valid export license depending on the destination country and end use. Domestic U.S. orders are not affected. Contact us before placing an international order to discuss compliance requirements.
Is this battery rechargeable?
No. The UB1426 is a primary (non-rechargeable) lithium cell. It must be replaced once depleted and should never be connected to a charger.
How does the 12-month warranty work?
The UB1426 carries a 12-month manufacturer warranty — longer than the DOA-only coverage on most primary military cells. Contact us within the warranty period if you experience a defective cell.
How should this battery be stored?
Store in a cool, dry location away from heat sources and direct sunlight. The Li-MnO2 chemistry supports a 10-year shelf life under proper storage conditions. Keep terminals protected from conductive materials to prevent accidental discharge.
