01
China Li-SOCI2 9V Lithium Battery 1200mAh ER9V - HWE Factory Suppliers
| Product Model | ER9V | Battery Type | Li-SOCl₂ |
| Nominal Voltage | 10.8V | Nominal Capacity | 1200mAh Discharge to 6.0V / 0.5mA |
| Dimension (W × T × L) | 26.5mm × 17mm × 48.8mm | Rough Weight | 40g |
| Discharge Cut-off Voltage | 6.0V | Standard Discharge Current | 0.5mA |
| Max Constant Discharge Current | 25mA | Max. Pulse Current | 50mA 100ms pulses, drained every 2 min |
| Ambient Temperature Range | -55 ~ +85℃ | Storage Life | ≥ 10 years Yearly self-discharge ≤ 1% |
Frequently Asked Questions
Q
What does Li-SOCl₂ mean, and why is it used in the ER9V battery?
Li-SOCl₂ stands for Lithium Thionyl Chloride. It is a primary (non-rechargeable) battery chemistry known for its extremely high energy density, wide operating temperature range, and very low self-discharge rate. These properties make it ideal for long-life, low-power applications such as wireless sensors, meters, and IoT devices.
Q
What is the nominal voltage and capacity of the ER9V battery?
The ER9V battery has a nominal voltage of 10.8V and a nominal capacity of 1200mAh, measured when discharged to a cut-off voltage of 6.0V at a standard current of 0.5mA.
Q
What is the operating temperature range of the ER9V battery?
The ER9V battery operates reliably across an ambient temperature range of -55°C to +85°C. This wide range makes it suitable for extreme environments, including outdoor industrial applications, cold-storage monitoring, and high-temperature industrial settings.
Q
How long can the ER9V battery be stored, and what is its self-discharge rate?
The ER9V has a storage life of 10 years or more, with an annual self-discharge rate of less than or equal to 1%. This ensures the battery retains most of its capacity even after long periods of storage before deployment.
Q
What are the maximum discharge current capabilities of the ER9V?
The ER9V supports a maximum constant discharge current of 25mA. For pulse applications, it can deliver up to 50mA in 100ms pulses, with pulses occurring every 2 minutes. This makes it well-suited for devices that require periodic bursts of higher current.
Q
What are the physical dimensions and weight of the ER9V battery?
The ER9V battery measures 26.5mm (Width) × 17mm (Thickness) × 48.8mm (Length) and weighs approximately 40 grams. Its compact form factor makes it a practical replacement for standard 9V battery slots in professional-grade equipment.