ER14250H 1/2 AA 3.6V
High-Capacity, Bobbin-Type Cell for Ultra-Long Life & Reliable Standby Power
High-Capacity, Bobbin-Type Cell for Ultra-Long Life & Reliable Standby Power
The ER14250H is a high-capacity, bobbin-type 3.6V Lithium Thionyl Chloride (Li-SOCl₂) battery, specifically designed for long-term, low-drain applications that demand exceptional reliability, ultra-long life, and stable voltage output.
With a nominal capacity of 1200mAh, this non-rechargeable lithium battery is ideal for industrial and smart metering applications. It provides an impressive energy density of up to 700Wh/kg, low self-discharge (<1% per year at 25°C), and more than 10 years of shelf life under optimal storage conditions.
Its bobbin cell structure enhances stability and safety in environments that require long-duration low-current discharge. Certified with UN38.3, CE, and UL, the ER14250H meets international performance and transport safety standards.
All SUNJ batteries are designed to withstand reasonably foreseeable misuse and are tested in compliance with international performance, safety, and transport regulations.
Basic Parameters
| Subject | Parameters | Remark |
| Specification | 1/2AA | Bobbin-type, stainless steel shell, fully sealed structure. |
| Nominal voltage | 3.6V | –– |
| Nominal capacity | 1200mAh | 1mA, 25±3℃，cut-off at 2.0V |
| Max continuous discharge current | 20mA | –– |
| Max available pulse current | 50mA | –– |
| Operating temperature | -55℃~+80℃ | Elevated operating temperatures can cause reduced pulse capacity and low voltage readings. For temperatures exceeding +40℃ or falling below -20℃, consult SUNJ. |
| Dimension | φ14.5x25.2mm | Figure attached |
| Standard weight | About 10g | –– |
| Annual self-discharge rate | ≤1% | 25±3℃，RH 65±10% |
Compatible Part Numbers
1770-XZ, 3B26, 418-0076, 60-0576-100, 6135-99-770-2535, 6ES5-980-0MA11, 742-0011, 922-1262, ER3, ER3S, ER4, LS14250, LS3, T04/41, T04/51, TL-2150, TL-2150/S, TL-2151, TL-5101, TL-5112, TL-5151, TL-5151S, VL1/2AA, and others.
▎Note: Compatibility is based on voltage, dimensions, and performance. Please consult our technical support team for replacement or installation advice.
Storage Guidelines
Store in a clean, cool (preferably <20°C, not exceeding 30°C), dry, and well-ventilated environment.
Flexible Single Cell and Pack Options
SUNJ offers flexible battery configurations to suit various applications:
◆ S: Standard Terminals
◆ T: Solder Tabs
◆ P: Axial Pins
◆ Custom Options: Available upon request
For projects requiring higher voltage or capacity, battery packs can be customized by combining multiple cells.
Warnings
● This is a non-rechargeable lithium battery. Do not charge.
● Keep away from heat, fire, flammable or explosive materials.
● Do not short-circuit, crush, disassemble, incinerate, or expose to temperatures above 100°C.
● Operate only within the recommended temperature range.
Electrical Performance Graph
ER14250H Discharge Curve @25°C ↓
Voltage Recovery After Storage ↓
Voltage vs. Temperature curve ↓
Capacity vs.Current (2.0V cutoff) ↓
Key Features & Technical Advantages
● High Energy Density – Up to 700Wh/kg
● Extended Shelf Life – Over 10 years at room temperature
● Low Self-Discharge – <1% per year at 25°C
● Stable Operating Voltage – 3.6V nominal
● Wide Temperature Range – -55°C to +85°C
● Stainless Steel Housing – Corrosion-resistant casing
● Hermetic Glass-to-Metal Seal – Prevents leakage and enhances safety
● Non-Flammable Electrolyte – Safer and compliant with IEC60086-4
● Fully Certified – UL, UN38.3, MSDS for safe transport
● Excellent Passivation Resistance
● Low Magnetic Signature
Application Areas
Smart Metering & IoT
● Smart Utility Meters (Gas, Water, Electric – AMR/AMI)
● IoT Devices & Wireless Sensor Networks
● RFID, Toll Systems, and Remote Monitoring
● Smart Home Security & Alarm Systems
● Embedded Systems & Backup Power Units
Industrial & Specialized Use
● Automotive Telematics & GPS Trackers
● Fleet Management & Asset Tracking
● Medical Monitoring & Data Loggers
● Oil & Gas Monitoring (Pipelines, Sensors)
● Aerospace, Military & Defense Electronics
● Scientific Instruments & Sensors
Why Choose ER14250H from SUNJ?
At SUNJ, we manufacture and deliver high-performance lithium primary batteries tailored for industrial-grade applications. The ER14250H is engineered for long-term, low-drain performance with outstanding reliability, low self-discharge, and robust safety certifications. We provide bulk pricing, technical consultation, and rapid global delivery to ensure your supply chain is reliable and competitive.
Order Now – Bulk Discounts & Fast Shipping
Looking for a reliable ER14250H lithium battery supplier? SUNJ offers factory-direct pricing, technical expertise, and prompt worldwide shipping.
Contact us today to request a quote and secure your high-quality battery supply.
All Li-Socl2 Battery Specifications
| International Model Size | Max Dimension [mm] | Weight [g] | Nominal Voltage [V] | Nominal Capacity | Max Continuous Operating Current [mA] | Max Pulse Operating Current [mA] | |||
| Model No. | Size | End Voltage [V] | Nominal Current [mA] | Nominal Capacity[mAh] | |||||
| Bobbin Type | |||||||||
| ER10450H | AAA | Φ10.5*45.0 | 10 | 3.6 | 2.0 | 1.0 | 1000 | 20 | 50 |
| ER14250H | 1/2AA | Φ14.5*25.2 | 10 | 3.6 | 2.0 | 1.0 | 1200 | 20 | 50 |
| ER14335H | 2/3AA | Φ14.5*33.5 | 13 | 3.6 | 2.0 | 1.0 | 1650 | 40 | 100 |
| ER14505H | AA | Φ14.5*50.5 | 18 | 3.6 | 2.0 | 1.0 | 2700 | 50 | 100 |
| ER17335H | 2/3AA | Φ17.5*33.5 | 20 | 3.6 | 2.0 | 1.0 | 1900 | 50 | 100 |
| ER17505H | A | Φ17.5*50.5 | 24 | 3.6 | 2.0 | 2.0 | 3600 | 70 | 150 |
| ER18505H | ―― | Φ18.5*50.5 | 30 | 3.6 | 2.0 | 2.0 | 4000 | 100 | 150 |
| ER26500H | C | Φ26.2*50.0 | 53 | 3.6 | 2.0 | 2.0 | 8500 | 100 | 200 |
| ER34585H | ―― | Φ34.2*58.5 | 100 | 3.6 | 2.0 | 2.0 | 16000 | 150 | 300 |
| ER34615H | D | Φ34.2*61.5 | 103 | 3.6 | 2.0 | 2.0 | 19000 | 230 | 400 |
| ER261020H | CC | Φ26.2*102.0 | 100 | 3.6 | 2.0 | 2.0 | 17000 | 250 | 500 |
| ER341245H | DD | Φ34.2*124.5 | 200 | 3.6 | 2.0 | 5.0 | 36000 | 450 | 700 |
| ER9V | ―― | 17.0*26.5*48.5 | 34 | 10.8 | 6.0 | 1.0 | 1200 | 25 | 50 |
| Spiral Type | |||||||||
| ER14250M | 1/2AA | Φ14.5*25.5 | 10 | 3.6 | 2.0 | 2.0 | 800 | 100 | 200 |
| ER14335M | 2/3AA | Φ14.5*33.5 | 13 | 3.6 | 2.0 | 2.0 | 1350 | 200 | 600 |
| ER14505M | AA | Φ14.5*50.5 | 19 | 3.6 | 2.0 | 3.0 | 2100 | 400 | 1000 |
| ER17335M | 2/3A | Φ17.5*33.5 | 19 | 3.6 | 2.0 | 3.0 | 1700 | 400 | 1000 |
| ER17505M | A | Φ17.5*50.5 | 26 | 3.6 | 2.0 | 5.0 | 2800 | 400 | 1000 |
| ER18505M | ―― | Φ18.5*50.5 | 30 | 3.6 | 2.0 | 5.0 | 3500 | 500 | 1000 |
| ER26500M | C | Φ26.2*50.5 | 57 | 3.6 | 2.0 | 10 | 6000 | 1000 | 2000 |
| ER34615M | D | Φ34.2*61.5 | 109 | 3.6 | 2.0 | 15 | 13000 | 1800 | 3500 |
| ER9V | ―― | 17.0*26.5*48.5 | 34 | 10.8 | 6.0 | 1.0 | 1200 | 25 | 50 |
Selection Guidelines:
◆ High Current / Pulse Applications → Spiral-type Cells
◆ Long-Term, Low-Current Applications → Bobbin-type Cells
◆ Higher Capacity Needs → Larger Size Models
Popular Searches:
Customers searching for ultra-long-life lithium cells often look for ER14250H 3.6V batteries, also referred to as 1/2AA bobbin-type lithium batteries, Li-SOCl₂ 3.6V cells, or high-capacity primary lithium batteries. Common comparisons include ER14250 vs. ER14250H, or queries for long-lasting batteries for AMR, IoT, or smart metering. Other searches include ER14250H lithium battery, bobbin-type 3.6V 1/2AA cell, and lithium thionyl chloride battery for telemetry.
