The ER18505 3.6V 4000mAh primary Li SOCL2 battery from VCELL POWER, a Chinese high-tech enterprise, features a stainless steel casing and a metal-glass sealed, airtight welded structure, ensuring a highly sealed and structurally sound battery. Combined with a rigorous quality control system and international certifications, this prevents electrolyte leakage, safety and reliability.
The VCELL POWER ER18505 3.6V 4000mAh primary Li SOCL2 battery is a high-performance battery. Its 3.6V standard voltage and 4000mAh rated capacity make it an ideal choice for energy-intensive devices. Its cylindrical design, measuring 18.5mm (diameter) x 50.5mm (height), is ideal for compact devices. In the same size and weight, the ER18505 battery boasts a high specific energy of 430Wh/kg or 1080Wh/L, significantly extending the life of devices. Furthermore, this battery boasts a lifespan of over 10 years when stored at room temperature, offering excellent value for money.
| Battery Type | Lithium Thionyl Chloride Battery |
| Brand | VCELL/OEM |
| Model | ER18505 |
| Nominal Voltage | 3.6V |
| Nominal Capacity | 4000mAh |
| Discharge Cut-Off Voltage | 2.0V |
| Maximum Continuous Discharge Current | 130mA |
| Peak Discharge Current | 180mA |
| Work Temperature | -60℃~+85℃ |
| Size(D*H) | 18.5*50.5mm |
| Weight | Approx.32g |
| Life Time | > 10 Years |

1. ER18505 3.6V 4000mAh Primary Li SOCL2 Battery utilizes a stainless steel housing with a metal-glass sealed, airtight welded structure for safety and reliability.
2. High energy density significantly extends battery life.
3. Annual self-discharge rate is less than 1%, reducing equipment maintenance frequency and costs.
4. Suitable for use in extreme environmental conditions, operating in temperatures ranging from -40°C to +85°C.
The application of VCELL POWER ER18505 3.6v 4000mAh primary Li SOCL2 battery:
Smart electricity meters, water meters, gas meters, clocks, PLCs, smoke alarms, wireless sensor networks and remote monitoring systems, smart city infrastructure monitoring equipment, environmental monitoring, and agricultural IoT devices., etc.



CE, UL, ROHS, UN38.3, MSDS,etc
1. Do not recharge disposable lithium batteries.
2. Ensure correct polarity during installation.
3. Do not disassemble, cut, weld, puncture, squeeze, heat, burn, or impact the battery, as this may cause deformation, leakage, or even explosion.
4. Keep lithium batteries out of reach of children. If swallowed, seek immediate medical attention.
5. Before use, confirm that the battery voltage and polarity match the original battery. Inconsistency may damage the device.