ER17505H A 3.6V
ER17505H A 3.6V Lithium Battery – High Capacity, Bobbin-Type, Long Life, Reliable Power.
ER17505H A 3.6V Lithium Battery – High Capacity, Bobbin-Type, Long Life, Reliable Power.
The ER17505H is a high-capacity, A-size 3.6V lithium thionyl chloride (Li-SOCl₂) battery, engineered with advanced bobbin-type construction for low-drain, long-duration applications. With a nominal capacity of 3600mAh and an impressive energy density of up to 700Wh/kg, this non-rechargeable battery is designed to deliver stable, long-term power, making it ideal for smart meters, industrial automation, medical devices, and IoT systems.
Known for its exceptional reliability and long shelf life, the ER17505H features a low self-discharge rate (less than 1% per year at 25°C), ensuring over 10 years of storage life under optimal conditions. Its rugged design allows for stable voltage in harsh environments, while the lithium metal anode and carbon-thionyl chloride cathode ensure consistent performance during both continuous and pulse discharge.
Certified to UN38.3, UL, and CE standards, this primary lithium battery is safe for global transportation and trusted for mission-critical applications.
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 | A | Bobbin-type, stainless steel shell, fully sealed structure. |
| Nominal voltage | 3.6V | –– |
| Nominal capacity | 3600mAh | 2mA, 25±3℃，cut-off at 2.0V |
| Max continuous discharge current | 70mA | –– |
| Max available pulse current | 150mA | –– |
| Operating temperature | -55℃~+85℃ | Elevated operating temperatures can cause reduced pulse capacity and low voltage readings. For temperatures exceeding +40℃ or falling below -20℃, consult SUNJ. |
| Dimension | φ17.5x50.5mm | Figure attached |
| Standard weight | About 24g | –– |
| Annual self-discharge rate | ≤1% | 25±3℃，RH 65±10% |
Compatible Part Numbers
LS17500, XL-100F, ER17/50, Bat-1125, NSN 6135-01-524-7621, 10402768, T32/8AA, 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 Solutions
SUNJ offers customizable battery configurations designed to match different applications and fit your device precisely.
◆ S: Standard Terminals
◆ P: Axial Pins
◆ T: Solder Tabs
◆ Custom Terminals: Available upon request
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
ER17505H Discharge Profiles (25°C) ↓
Voltage Recovery After Storage ↓
Voltage and current relation curve ↓
Capacity vs.Current(2.0V cutoff) ↓
Key Features
● High and Stable Operating Voltage: Consistent output for long-term, low-drain applications.
● High Energy Density: Over 700Wh/kg, providing significant power in a compact form.
● Long Shelf Life: Over 10 years under normal room temperature, with an ultra-low self-discharge rate (less than 1% per year at 25°C).
● Wide Operating Temperature Range: Reliable performance from -55°C to +85°C, suitable for extreme environments.
● High Safety and Reliability: Certified to UL1642, IEC60086-4, and UN38.3 standards for safe use and transportation.
● Robust Construction: Stainless steel container and end caps for durability and corrosion resistance.
● Hermetically Sealed Design: Glass-to-metal hermetic seal prevents leakage and ensures long-term stability.
● Non-Flammable Electrolyte: Enhances overall safety and stability.
● Excellent Passivation Resistance: Provides low magnetic interference, ensuring reliable performance even in sensitive electronic systems.
● Lower ESR (Equivalent Serial Resistance): Supports consistent power delivery and efficient discharge.
● Excellent Humidity Resistance: Designed to perform reliably even in humid conditions.
● Non-Restricted for Transport: Safe for global shipping, with full compliance to international transport regulations.
● Compliant with International Standards: Meets IEC86-4 safety requirements, with MSDS and UN38.3 certifications available.
Applications
● Smart Utility Meters: Gas, water, and electric metering (AMR & AMI systems).
● Industrial and Professional Electronics: Measuring instruments, sensors, and tracking devices.
● IoT Devices: Remote monitoring, data logging, and smart sensors.
● Automotive Telematics: Fleet management, GPS tracking, and vehicle monitoring.
● Medical Devices: AEDs, surgical tools, and portable diagnostic equipment.
● Military and Aerospace: Communications equipment and high-reliability systems.
● Oil and Gas Industry: Pipeline monitoring, offshore buoys, and deep-sea sensors.
Empower Your Devices with Reliable, Long-Lasting Energy
Need dependable power for your critical systems? The ER17505H offers unmatched reliability and extended service life for even the most demanding applications. Contact us today for expert support, bulk orders, and competitive pricing.
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
Flexible Battery Pack Solutions
For projects requiring higher voltage or capacity, battery packs can be customized by combining multiple cells.
Our battery pack solutions are designed for easy integration and tailored to specific voltage, capacity, and size requirements.
By connecting ER cells in series or parallel, we create custom battery packs optimized for performance and safety in device applications.
Pack Customization Includes:
◆ Series and parallel configurations
◆ Custom connectors and wiring harnesses
◆ Encapsulation, heat-shrink, or plastic casing options
◆ PCM/PCB protection circuits and safety components
◆ IP-rated waterproofing solutions available upon request
◆ Capacitors for voltage stabilization and pulse current support
Popular Searches
Looking for a high-capacity, A-size lithium battery? The ER17505H, a 3.6V Li-SOCl2 cell, is perfect for smart metering, industrial automation, and IoT devices. Known for its long-lasting power, stable voltage, and high energy density, this bobbin-type battery is widely used in critical systems worldwide. Compatible alternatives include LS17500, XL-100F, ER17/50, Bat-1125, and other A lithium batteries.
