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9V Li-SOCI2 Lithium Battery 1200mAh - China Suppliers & Factory Direct - Model ER9V by HWE, Howell
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10.8 V Nominal
Li-SOCl₂ Chemistry
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1200 mAh Capacity
Discharged to 6.0 V / 0.5 mA
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−55 ~ +85 °C
Wide Operating Range
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≥ 10 Years Storage
Self-discharge ≤ 1% / yr
| Product Model | ER9V | Battery Type | Li-SOCl₂ |
| Nominal Voltage | 10.8 V | Nominal Capacity | 1200 mAh Discharge to 6.0 V / 0.5 mA |
| Dimension (W × T × L) | 26.5 mm × 17 mm × 48.8 mm | Rough Weight | 40 g |
| Discharge Cut-off Voltage | 6.0 V | Standard Discharge Current | 0.5 mA |
| Max Constant Discharge Current | 25 mA | Max. Pulse Current | 50 mA 100 ms pulses, drained every 2 min |
| Ambient Temperature Range | −55 ~ +85 °C | Storage Life | ≥ 10 years Yearly self-discharge ≤ 1% |
Frequently Asked Questions
What does "Li-SOCl₂" mean, and why is it used in the ER9V?
Li-SOCl₂ stands for Lithium Thionyl Chloride. It is a primary (non-rechargeable) lithium chemistry known for its exceptionally high energy density, very low self-discharge rate, and ability to operate across an extremely wide temperature range — all of which make it ideal for long-life, low-power applications like the ER9V.
What is the nominal voltage of the ER9V, and is it compatible with standard 9 V devices?
The ER9V has a nominal voltage of 10.8 V, which is higher than a conventional alkaline 9 V battery. It is designed for specific devices that accept this voltage level, such as certain wireless sensors and smoke detectors. Always verify your device's voltage requirements before use.
How long can the ER9V be stored before use?
The ER9V offers a storage life of 10 years or more, with an annual self-discharge rate of no more than 1%. This makes it an excellent choice for emergency equipment or devices that may sit idle for extended periods.
What is the maximum pulse current the ER9V can deliver?
The ER9V can deliver a maximum pulse current of 50 mA in 100 ms pulses, repeated every 2 minutes. This pulse capability is critical for devices that require short bursts of higher current, such as wireless transmitters or alarm systems.
Can the ER9V operate in extreme temperatures?
Yes. The ER9V is rated for an ambient temperature range of −55 °C to +85 °C, making it suitable for harsh industrial, outdoor, and military environments where standard alkaline batteries would fail.
Is the ER9V rechargeable?
No. The ER9V is a primary (single-use) lithium battery and must not be recharged, disassembled, or short-circuited. Attempting to recharge it can result in leakage, heat generation, or rupture. Always dispose of used batteries according to local regulations.