ER14250-TN 3.6V 1200mAh Li-SOCl2 Lithium Thionyl Chloride Battery for Smart water meters, Smart gas meters, AMR/AMI metering modules
| Parameter | Specification |
|---|---|
| Model | ER14250-TN |
| Battery Type | Lithium Thionyl Chloride battery (3.6V Li-SOCl2 Battery) |
| Nominal Voltage | 3.6V |
| Nominal Capacity | 1200mAh, 23±2°C, 0.5mA discharge to 2.0V cut-off |
| Max. Constant Current | 20mA |
| Operating Temperature | -55°C to 85°C |
| Dimensions | Φ14.5mm x H25.2mm |
| Weight | About 10g |
| Annual Self-discharge Rate | ≤2% at 23±2°C and 65±10% RH long-term storage |
| Open Circuit Voltage | ≥3.65V at 23±2°C |
ER14250-TN is a 3.6V 1200mAh Li-SOCl2 battery for Smart water meters, Smart gas meters, AMR/AMI metering modules
The ER14250-TN is a 3.6V 1200mAh Li-SOCl2 battery designed for long-life primary power applications that require stable voltage, compact size and low self-discharge. According to the datasheet, this ER14250 lithium thionyl chloride battery uses a bobbin type structure, supports a maximum constant current of 20mA and a maximum pulse discharge current of 50mA, and operates across -55 to 85 degC. The cell size is Phi 14.5mm x H25.2mm with an approximate weight of 10g, making it suitable where space is limited but long service intervals are required. VTCBATT can support factory supply, sample development, labeling, tab or lead-wire matching, connector options, OEM/ODM customization and wholesale batch supply for equipment manufacturers and battery pack integrators.
Long-Life Meter Power


Wide Temperature Operation
Stable Pulse Support
20mA maximum constant current and 50mA pulse discharge capability fit low-power devices with periodic transmission events.


OEM Assembly Ready
Full Certification & Extended Warranty
VTCBATT Li-SOCl2 batteries meet global certifications including CB, CE, UL, and UN38.3, and offer a 14-month warranty—two months longer than standard—to maximize customer confidence and profit.

VTCBATT Li-SOCl2 battery passed all the major global certifications, such as CB, CE, EN61000,IEC62133,MSDS.UN38.3,ROHS,UL,BIS,KC Certification,which makes your product more competitive.

Compared to a normal 12-month warranty, VTCBATT Li-SOCl2 batteries have 14-month warranty and two extra months for shipping and customs clearance ,which ensure the customer’s profit.
VTCBATT Production and Service
To meet the diverse demands of different customers,VTCBATT is noly only devoted to precise and standardized manufacturing in every process to ensure the highest-quality batteries, but also focuses on customized design and excellent service. By providing comprehensive support from pre-sales to after-sale ,VTCBATT cares customers’ feedback to establish long-term and win-win cooperation. Fast assistance and professional battery proposals are the core principle of our professional sales and technical engineers team.
From the raw materials mixing to the cell test, VTCBATT adopts an automatic manufacturing process to maximize production efficiency and enhance the batteries
quality, safety, and reliability. The entire manufacturing process is monitored and 100% tested before flowing to the next procedure to ensure zero defects before delivery.
Over the past 20 years, VTCBATT has built strong partnerships with customers in more than 50 countries worldwide. With reliable quality, responsive service, and tailored battery solutions, we have earned the trust of our clients—many of whom have maintained long-term cooperation and lasting friendships with us for over a decade. Together, we continue to grow and move forward toward a brighter future.
Application for ER14250-TN Li-SOCl2 rechargeable battery
For smart meters, AMR/AMI modules, wireless sensor nodes, industrial data loggers, tracking terminals and security alarm sensors, the ER14250-TN offers a compact 1/2AA cylindrical format with 3.6V nominal voltage and 1200mAh nominal capacity. Its low annual self-discharge rate and wide operating temperature range help support devices that spend long periods in standby and wake periodically for measurement, transmission or alarm events. VTCBATT can adapt the battery for application-specific assembly requirements, including tabs, wire length, connector matching, labeling, sample testing and stable batch production. For distributors, brand owners and equipment manufacturers, VTCBATT provides factory-direct Li-SOCl2 battery wholesale and OEM/ODM support without overstating unsupported high-drain performance.







ER14250H Li-SOCl2 rechargeable battery Test Report
ER14250H 3.5kohm FA1 DischargeFresh-cell discharge to 2.0V at about 1mA, with measured capacities around 1201-1213mAh. | ER14250H Long-Term Storage Discharge1, 3 and 6 year storage groups at 23+/-3 degC show low annual self-discharge in the test report. |
ER14250H 70 degC Accelerated Storage Discharge180 days at 70+/-3 degC followed by 3.5kohm discharge, average capacity about 960mAh. | ER14250 10mA Discharge TestTwo-cell discharge test at 23+/-3 degC with 2.0V cut-off; reported capacities 1010.5mAh and 952.2mAh. |
ER14250 25mA Discharge TestTwo-cell discharge test at 23+/-3 degC with 2.0V cut-off; reported capacities 773.1mAh and 701.2mAh. | Restored Capacity Versus Current and TemperatureApproximate recoverable capacity at 2.0V cut-off for four temperature conditions. |
Typical Discharge Profiles at 23+/-2 degCER14250 Li-SOCl2 voltage behavior under 0.1mA to 10mA discharge loads. | Voltage Plateau Versus Current and TemperatureOpen operating voltage trend from -30 degC to 70 degC across representative currents. |










