XCell ER14250M 1/2 AA Lithium Battery 3.6V 800mAh 148613

With a nominal voltage of 3.6V and a capacity of 800mAh, this lithium thionyl chloride battery delivers reliable power for memory backup, utility metering, security systems, and industrial electronics. Its bobbin construction and non-flammable electrolyte ensure safe, long-term operation across a wide temperature range from -55°C to +85°C.

Overview

The XCell ER14250M is a primary (non-rechargeable) lithium battery in the 1/2 AA form factor. It uses lithium thionyl chloride chemistry, providing a stable 3.6V output and a self-discharge rate of less than 1% per year, yielding a shelf life of over 10 years. The battery features a standard button top terminal and is supplied as a single unit.

What stands out

• High energy density of approximately 400 Wh/kg
• Wide operating temperature range: -55°C to +85°C
• Low self-discharge: <1% per year for extended storage
• Bobbin construction with non-flammable electrolyte for enhanced safety
• Reliable power for memory backup and industrial applications

Technical details

• Battery type: Primary Lithium
• Chemistry: Lithium Thionyl Chloride (Li-SOCl2)
• Form factor: 1/2 AA
• Nominal voltage: 3.6 V
• Nominal capacity: 800 mAh
• Max continuous discharge current: 15 mA
• Max pulse discharge current: 50 mA
• Operating temperature: -55°C to +85°C
• Self-discharge rate: <1% per year
• Shelf life: 10+ years
• Terminal type: Standard (Button Top)
• Rechargeable: No
• IEC designation: ER14250
• Internal resistance: ~40 Ohms (new)

Our verdict

For long-term, low-drain applications where reliability is critical, the XCell ER14250M is an excellent choice. Its wide temperature tolerance and decade-long shelf life make it ideal for backup power in demanding environments.