ER17335H 2/3A 3.6V
2/3A-size 3.6V Lithium Battery – High Capacity, Bobbin-Structure, Ultra-Low Self-Discharge, Extended Operating Life.
2/3A-size 3.6V Lithium Battery – High Capacity, Bobbin-Structure, Ultra-Low Self-Discharge, Extended Operating Life.
The ER17335H is a high-capacity, 2/3A-size 3.6V lithium thionyl chloride (Li-SOCl₂) battery designed with bobbin-type construction, making it an ideal choice for long-term, low-drain applications.
With a nominal capacity of 1900mAh and an impressive energy density of up to 700Wh/kg, this non-rechargeable battery delivers exceptionally stable performance, long shelf life, and outstanding reliability in harsh environments. It is widely used in smart meters, industrial automation, medical devices, and IoT systems that demand long-lasting power.
Engineered for extreme conditions, the ER17335H provides a stable output voltage with an ultra-low self-discharge rate (less than 1% per year at 25°C), ensuring a shelf life of over 10 years under optimal storage.
Its advanced lithium metal anode and carbon-thionyl chloride cathode enable consistent performance during continuous and pulse discharge. Certified to UN38.3, UL, and CE standards, this primary lithium battery is globally recognized for its safety and reliability.
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 | 2/3A | Bobbin-type, stainless steel shell, fully sealed structure. |
| Nominal voltage | 3.6V | –– |
| Nominal capacity | 1900mAh | 1mA, 25±3℃，cut-off at 2.0V |
| Max continuous discharge current | 50mA | –– |
| Max available pulse current | 100mA | –– |
| 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 | φ17.5x33.5mm | Figure attached |
| Standard weight | About 20g | –– |
| Annual self-discharge rate | ≤1% | 25±3℃，RH 65±10% |
Compatible Part Numbers
LS17330, ER17/33, BR-2/3A, Hawker Eternacell T32/41, T32/51, T32/BAA1, 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
ER17335H Discharge Profiles (25°C) ↓
Voltage Recovery After Storage ↓
Voltage and current relation curve ↓
Capacity vs.Current(2.0V cutoff) ↓
Key Features
● High energy density: Over 700Wh/kg
● Stable operating voltage throughout most of the battery's life
● Ultra-low self-discharge (≤1% per year at 25°C)
● Wide operating temperature range (-55°C to +85°C)
● Hermetically sealed glass-to-metal construction for leak protection
● Non-flammable electrolyte for enhanced safety
● Compliant with IEC60086-4 and UN38.3 safety standards
● Long storage life: Over 10 years under normal room temperature
● Excellent Passivation Resistance
● Lower ESR (Equivalent Serial Resistance)
● Low Magnetic Signature – Suitable for precision and sensitive equipment
Applications
The ER17335H battery is well-suited for a wide range of applications,including:
● Smart Utility Meters (Gas, Water, and Electric)
● Alarms and Security Systems
● IoT Devices and Smart Sensors
● Remote Data Acquisition Systems
● Automotive Telematics
● Tracking Systems and GPS Devices
● R&D Instruments and Professional Electronics
● Medical Devices and Emergency Systems
Power Your Critical Systems with the SUNJ ER17335H
Ready to power your critical devices with reliable, long-lasting energy? Choose the ER17335H for unmatched performance in demanding applications. Contact us now for bulk orders, technical support, 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, 2/3A-size lithium battery? The ER17335H, 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 LS17330, ER17/33, BR-2/3A, and other 2/3A lithium batteries.
