The EVE ER18505 3.6V 4000mAh Li-SOCl2 Battery is a high-performance primary lithium cell expertly designed for wireless gas meter communication and IoT applications. Suitable for various types of utility meters, this A-size battery delivers a high energy density, releasing sufficient power in a limited space to ensure wireless communication remains constantly online. This guarantees that utility data is transmitted to management terminals in real-time with supreme accuracy, greatly improving smart grid management. If you require custom battery configurations, please contact us!
Features of EVE ER18505 3.6V 4000mAh Battery
- Operating Voltage Stabilization: Delivers continuous, reliable power.
- Wide Temperature Range: Excellent adaptation to extreme environments (-55℃ to +85℃).
- High Energy Density: Compact A-size footprint with long-lasting 4000mAh capacity.
- Long Storage Life: Ultra-low self-discharge rate supports up to 10 years of natural shelf life.
- Safe & Eco-Friendly: Manufactured with rigorous safety standards and zero pollution.
EVE ER18505 Specifications
| Parameter | Specification |
| Model | ER18505 |
| Nominal Voltage | 3.6V |
| Nominal Capacity | 4000mAh |
| Maximum Continuous Discharge Current | 130mA |
| Maximum Pulse Discharge Current | 180mA |
| Lithium Weight | 28g |
| Self-Discharge Rate | ≤1% per year |
| Natural Storage Life | 10 years |
| Storage Temperature | -20℃ ~ +25℃ |
| Operating Temperature | -55℃ ~ +85℃ |
| Dimension | 18.7×50.5 (mm) |
Dimension and Details
EVE 3.6V Li-SOCl2 Battery Series Chart
| Model | Nominal Voltage (V) | Nominal Capacity (mAh) | Max Continuous Current (mA) | Max Pulse Current (mA) | Weight (g) | Operating Temperature (℃) | Dimension (mm) |
| ER14250 | 3.6 | 1200 | 35 | 50 | 10 | -55~+85℃ | 14.5×25.4 |
| ER14335 | 3.6 | 1650 | 35 | 75 | 12 | -55~+85℃ | 14.5×33.5 |
| ER14505 | 3.6 | 2700 | 60 | 150 | 19 | -55~+85℃ | 14.5×50.5 |
| ER17505 | 3.6 | 3600 | 100 | 180 | 26 | -55~+85℃ | 17.5×51.0 |
| ER18505 | 3.6 | 4000 | 130 | 180 | 28 | -55~+85℃ | 18.7×50.5 |
| ER26500 | 3.6 | 8500 | 150 | 200 | 52 | -55~+85℃ | 26.2×50.0 |
| ER34615 | 3.6 | 19000 | 230 | 300 | 100 | -55~+85℃ | 33.1×61.5 |
| EF651615 | 3.6 | 400 | 5 | 20 | 5 | -55~+85℃ | 16.85×15.8×7.0 |
| EF651625 | 3.6 | 750 | 10 | 30 | 8 | -55~+85℃ | 16.85×25.8×7.0 |
| EF702338 | 3.6 | 1600 | 20 | 50 | 16 | -55~+85℃ | 23.3×38.3×7.5 |
| ER2450T | 3.6 | 550 | 5 | 20 | 9 | -55~+125℃ | 24.3×6.2 |
| ER32L65 | 3.6 | 1000 | 10 | 50 | 19 | -55~+85℃ | 32.9×7.1 |
| ER32L100 | 3.6 | 1700 | 10 | 50 | 24 | -60~+85℃ | 32.9×10 |
Customized Products
ER18505 + Wire Leads and Connector
If your project requires batteries configured in series/parallel, or custom modifications such as wire leads, pins, or splices, please contact us.
Product Certification
Applications
The application field covers a wide array of industrial, civil, and specialized equipment including communications, automotive, petroleum, chemical, transportation, machinery, electronics, security, medical, and home appliances. The EVE ER18505 is exceptionally suited for scenarios that require high battery performance, long-term stable power supply, and minimal maintenance. It is widely used as the primary power source for smart meters (water, gas, electricity), outdoor monitoring systems, wireless sensors, and critical backup power in industrial automation control systems.
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